Help me plssss 5 stars to whoever answers

Step-by-step explanation:

volume= length×breadth×height

8-3-3= 2 cm

2×2×4= 16 cm^2

4-2= 2 cm

3×2×4= 24 cm^2

3×4×4= 48 cm^2

total volume

= 16+24+48

= 88 cm^2

Answer:

1 1/4

Step-by-step explanation:

5/4 can be decomposed as 4/4 + 1/4

so, 1 + 1/4

or in mixed number notation,

1 1/4

Answer:

1 1/4

Step-by-step explanation:

assuming that the real question, see the picture you put, asks for 5/4 and not 4/5, (4/5 is not a whole number). Let's solve 5/4, with 4/4 you have 1 and you are left with 1/4, so the answer is 1 1/4

Answer:

[tex]\mathrm{y=\frac{2}{5}x+2}[/tex]

Step-by-step explanation:

[tex]\mathrm{Here,\ we\ see\ that\ the\ line\ passes\ through\ (-5,0)\ and\ (0,2).}\\\mathrm{So\ the\ equation\ of\ line\ is:}\\\\\mathrm{y-0=\frac{2-0}{0-(-5)}(x-(-5))}\\\mathrm{or,\ y=\frac{2}{5}(x+5)}\\\mathrm{or,\ 5y=2x+10}\\\mathrm{or,\ y=\frac{2}{5}x+2}[/tex]

Alternative method:

[tex]\mathrm{Here,}\\\mathrm{x-intercept(a)=-5}\\\mathrm{y-intercept(b)=2}\\\mathrm{Now,}\\\mathrm{Equation\ of\ the\ line\ is:}\\\mathrm{\frac{x}{a}+\frac{y}{b}=1}\\\\\mathrm{or,\ \frac{x}{-5}+\frac{y}{2}=1}\\\\\mathrm{or,\ \frac{2x-5y}{-10}=1}\\\\\mathrm{or,\ 2x-5y=-10}\\\mathrm{or,\ 5y=2x+10 }\\\\\mathrm{or,\ y=\frac{2}{5}x+2\ is\ the\ required\ equation.}[/tex]

Answer:

[tex]y=\dfrac{2}{5}x+2[/tex]

Step-by-step explanation:

To determine the equation of the graphed line, first identify two points on the line:

Substitute these points into the slope formula to find the slope (m) of the line:

[tex]\textsf{Slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{2-0}{0-(-5)}=\dfrac{2}{5}[/tex]

The slope-intercept form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept.

The line crosses the y-axis at y = 2. Therefore, the y-intercept is 2.

Substitute the found slope and the y-intercept into the slope-intercept formula to create an equation of the graphed line:

[tex]\boxed{y=\dfrac{2}{5}x+2}[/tex]

The weight of the empty glass is 5.5 ounces. [True]

The glass is filled with water 1.5 inches from the top. [True]

One cubic inch of water weighs 0.6 ounce. [True]

The weight of the water in the glass is approximately 11.88 ounces. [True]

Let's analyze the given information and determine which statements are true:

The weight of the empty glass is 5.5 ounces.

Water is poured into the glass until it is 1.5 inches from the top.

0.6 ounces equal one cubic inch of water in weight.

Now, let's consider some additional calculations to verify if other statements can be determined:

The glass is cylindrical, and we know its base radius is 1.4 inches and its height is 7.5 inches. To find the volume of the glass, we can use the formula for the volume of a cylinder:

Volume = π * radius^2 * height

Substituting the given values:

Volume = π * (1.4 inches)^2 * 7.5 inches

Volume ≈ 29.484 cubic inches

Since the glass is filled with water up to 1.5 inches from the top, we can calculate the volume of water in the glass:

Water volume = Total volume - Volume of empty space

Water volume = 29.484 cubic inches - (1.5 inches * π * (1.4 inches)^2)

Water volume ≈ 29.484 cubic inches - 9.678 cubic inches

Water volume ≈ 19.806 cubic inches

Now, we can find the weight of the water in the glass by multiplying the volume by the weight of one cubic inch of water:

Water weight = Water volume * Weight per cubic inch

Water weight ≈ 19.806 cubic inches * 0.6 ounces/cubic inch

Water weight ≈ 11.8836 ounces

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Answer:

x = 70 °

Step-by-step explanation:

Two sides (CB & CA) of an isosceles triangle are equal.

The two angles (CBA & CAB) surrounding the third side (BA) are also equal.

The interior angles of a triangle add up to 180°.

180 = 40 + x + x

180 = 40 + 2x

140 = 2x

x = 70

Answer: 70 °

Step-by-step explanation: I used a protractor and if there are 40 ° at the top and the side lengths are all the same then you get 70 ° for x.

The distance from City B to City D is 194 miles.

Now, let's add up the distances to find the relationship between them:

Distance from City A to City D = Distance from City A to City B + Distance from City B to City C + Distance from City C to City D

320 miles = x miles + (x + 40) miles + (x + 82) miles

Now, let's solve this equation:

320 = 3x + 122

Subtracting 122 from both sides:

198 = 3x

Dividing both sides by 3:

x = 66

Therefore, the distance from City B to City D is:

Distance from City B to City D = Distance from City B to City C + Distance from City C to City D

Distance from City B to City D = (x + 40) + (x + 82)

Distance from City B to City D = 66 + 40 + 66 + 82

Distance from City B to City D = 194 miles

Hence, the distance from City B to City D is 194 miles.

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The amount of three shares are; 26 , 78,  and 130.

We know that ratio is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign between two integers.

The sum of the ratio = 1/2+1/3+ 1/4 = 6 + 4 + 3 /12

=  13/12

Then first share = 1/9 × 234

=26 $

Then second share = 3/9×234

=78 $

Then third share = 5/9 × 234

=130 $

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To calculate the variance for a population, the sum of squares (SS) is divided by the total number of observations in the population (N), not N-1. False.

The formula for population variance is:

Variance = SS/N

Where SS is the sum of squares, calculated by summing the squared differences between each observation and the population mean.

Dividing by N in the formula gives the population variance, which represents the average squared deviation from the population mean. This formula provides an unbiased estimate of the true variance of the entire population.

On the other hand, when calculating the variance for a sample (a subset of the population), we divide the sum of squares by N-1.

This correction factor of N-1 is used to account for the degrees of freedom lost when estimating the population variance from a sample.

By dividing by N-1, we obtain an unbiased estimate of the variance of the larger population from which the sample was drawn.

Therefore, for calculating the variance of a population, SS is divided by N, not N-1.

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1) a. Maximum = 8

Minimum = 2

b. Mid-line => y = 5

c. Period = 40     ; Rate constant = 1/40

d. Formula => y = -3cos(πx/20) + 5

e. f. the graph is given below.

Here,

given that,

Marissa is watching a honeybee return from her flower garden to a beehive in a branch of a nearby tree. She notices that the bee's path resembles part of a trigonometric function (see below).

Suppose that the flower is 2 ft above the ground, the beehive is 8 ft above the ground, and the horizontal distance from the flower to the beehive is 20 ft. Model this path with a sine or cosine function.

we have,

from the given information, we get,

1) a. Maximum = 8

Minimum = 2

b. Mid-line => y = 5

c. Period = 40     ; Rate constant = 1/40

d. Formula => y = -3cos(πx/20) + 5

e. f. the graph is given below.

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The sum of the greatest digit formed by the given numbers as required is; 11.

The difference of the greatest digit formed by the given numbers as required is; 1.

It follows from the task content that the given digits are ; 5 and 6.

Hence, the greatest digit is 6 while the smallest digit is 5.

Hence, the sum of both digits is; 6 + 5 = 11.

The difference of both digits is; 6 - 5 = 1.

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Answer:

Its speed should increase by 9.5km/hr

Step-by-step explanation:

speed is calculated by distance divided by time

we know that it took the tanker 10 hours to drive 380km (38km times 10 hours)

so if we divide the 380km by 8 hours we see that he should be driving at 47.5km/hr in order to travel the same distance in 8 hours

the question asks by how much speed should it INCREASE, so we subtract the 38km from the 47.5km to find the difference in speed, which is 9.5km

The 6th partial sum of the geometric sequence is 63/4.

To find the 6th partial sum of a geometric sequence, we first need to determine the common ratio (r) of the sequence.

Given that the 1st term (a₁) is -1/4 and the 8th term (a₈) is -1/512, we can use these values to find the common ratio.

We have the formula for the nth term of a geometric sequence:

aₙ = a₁ * r^(n-1)

Using this formula, we can write two equations based on the given information:

a₈ = a₁ * r⁸⁻¹

-1/512 = -1/4 * r⁷

Simplifying the equation:

r⁷ = (1/4) / (1/512)

r⁷ = (1/4) * (512/1)

r⁷ = 128

r = ∛(128)

r = 2

Now that we have the common ratio (r = 2), we can find the 6th partial sum (S₆) using the formula:

Sₙ = a₁ * (1 - rⁿ) / (1 - r)

Plugging in the values:

S₆ = (-1/4) * (1 - 2⁶) / (1 - 2)

S₆ = (-1/4) * (1 - 64) / (-1)

S₆ = (-1/4) * (-63) / (-1)

S₆ = 63/4

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Using the standard normal table the probability P(-0.6 < Z < 1.1) assuming a standard normal distribution is approximately 0.5900 or 59%.

To locate the possibility P(-zero.6 < Z < 1.1) the usage of the usual ordinary distribution, we need to find the place beneath the usual ordinary curve between the z-ratings -0.6 and 1.1.

Using a well known normale table or a calculator, we are able to discover the corresponding cumulative chances for these z-scores.

For z = -0.6, the cumulative probability is 0.2743.

For z = 1.1, the cumulative probability is 0.8643.

To discover the probability between those  z-ratings, we subtract the cumulative probability of -0.6 from the cumulative chance of 1.1:

P(-0.6 < Z < 1.1) = 0.8643 - 0.2743 = 0.5900

Thus, the probability P(-0.6 < Z < 1.1) assuming a standard normal distribution is approximately 0.5900 or 59%.

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Answer:

A

Step-by-step explanation:

By following these guidelines given below, teens can support the development of a healthy and resilient brain as they transition into adulthood.

A teen's decision-making can have a significant impact on their brain development. During adolescence, the brain undergoes structural and functional changes, particularly in the prefrontal cortex, which is responsible for decision-making, impulse control, and reasoning. The brain's reward center, the limbic system, also plays a prominent role during this period. When teens make choices, especially those related to risk-taking behaviors, it can affect the development and wiring of these brain regions.

To help teens strengthen their brains as they mature into adults, here is some advice:

Engage in balanced and healthy activities: Encourage teens to participate in a range of activities that promote physical, mental, and emotional well-being, such as exercise, reading, hobbies, and creative outlets.

Foster critical thinking skills: Encourage teens to question information, think critically, and consider the consequences of their decisions. Engaging in debates, discussing ethical dilemmas, and seeking multiple perspectives can help develop critical thinking abilities.

Practice self-regulation: Encourage teens to develop self-control and impulse management skills. This can involve techniques like deep breathing, mindfulness, and taking a pause before making impulsive decisions.

Seek positive role models and peer groups: Encourage teens to surround themselves with positive influences and supportive friends who engage in responsible behaviors and make sound decisions.

Prioritize sleep and stress management: Emphasize the importance of adequate sleep and stress reduction techniques, as these factors greatly impact brain health and cognitive function.

By following these guidelines, teens can support the development of a healthy and resilient brain as they transition into adulthood.

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6 kiloliters are approximately equal to 202,884.14 fluid ounces.

We have,

To convert 6 kiloliters (kL) to fluid ounces (fl oz), we need to use the conversion factor between these two units.

The conversion factor states that 1 kiloliter is equal to 33814.0227 fluid ounces.

This means that for every kiloliter, there are 33814.0227 fluid ounces.

To convert 6 kiloliters to fluid ounces, we multiply the given value (6 kL) by the conversion factor (33814.0227 fl oz/kL).

= 6 kL x 33814.0227 fl oz/kL

= 202884.1362 fl oz

Therefore,

6 kiloliters are approximately equal to 202,884.14 fluid ounces.

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Answer:

D) A search warrant

Step-by-step explanation:

A search warrant is required before the search and collection of evidence to ensure legal authorization and protection of individuals' rights against unreasonable searches and seizures.

Option B, "A crime", is incorrect because the presence of a crime is not a prerequisite for conducting a search and collection of evidence. There are various situations where searches and evidence collection may occur without a crime being involved, such as regulatory inspections, consented searches, or investigations into potential threats or risks.

By your logic when you say law enforcement can conduct a search without a search warrant if there is consent by the owner, that would mean option A would be right, but of course, it's not.

The probability that an individual man's step length is less than 1.9 feet is approximately 0.1056 or 10.56% (rounded to 4 decimal places).

Probability is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced in Math to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen. This is the basic probability theory, which is also used in the probability distribution,

The standardized value, also known as the z-score, is given by:

[tex]Z = \dfrac{(\text{x} - \mu)}{\sigma}[/tex]

Substituting the given values, we get:

[tex]Z = \dfrac{(1.9 - 2.4)}{0.4}[/tex]

[tex]Z = -1.25[/tex]

Now we need to find the probability that an individual man's step length is less than 1.9 feet, which is equivalent to finding the area under the standard normal distribution curve to the left of the z-score -1.25.

Using a standard normal distribution table or calculator, we can find that the area to the left of -1.25 is 0.1056.

Therefore, the probability that an individual man's step length is less than 1.9 feet is approximately 0.1056 or 10.56% (rounded to 4 decimal places).

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Answer:

Step-by-step explanation:

[tex]V=\frac{1}{3} \pi r^2h[/tex]

   [tex]=\frac{1}{3} \times\pi \times6^2\times25[/tex]

   [tex]=\frac{36\times25}{3\pi }[/tex]

   [tex]=\frac{300}{\pi }[/tex]

   [tex]=95.49\text{cm}^3[/tex]

Answer:

The problem statement suggests that the series of donations is arithmetic, as each student's donation increases by one as their number increases. Therefore, we can apply the formula for the sum of an arithmetic series to solve this problem.

In an arithmetic series, the sum S of n terms is given by:

S = n/2 * (a + l)

where:

- n is the number of terms (which represents the number of students in this case),

- a is the first term (in this case, the first student's number, which would be 1), and

- l is the last term (in this case, the last student's number, which we don't know yet).

Given that S = Rs. 13225, we have:

13225 = n/2 * (1 + l)

Since this is an arithmetic series starting from 1, the last term, l, is equal to n. Thus, we can substitute l with n:

13225 = n/2 * (1 + n)

Multiplying through by 2 to clear the fraction gives:

26450 = n * (1 + n)

Rearranging to a quadratic equation gives:

n^2 + n - 26450 = 0

This is a quadratic equation in the form of ax^2 + bx + c = 0. To solve for n, we can use the quadratic formula, n = [-b ± sqrt(b^2 - 4ac)] / (2a). But since n cannot be negative in this context (as it represents the number of students), we will only consider the positive root.

Applying the quadratic formula, we find that the positive root is approximately 162.5. However, the number of students must be a whole number. Therefore, the number of students is 163, because the 163rd student did not donate fully as per their number, and that's why the total amount doesn't reach the full sum for 163 students.

So, there were 163 students who donated money to the fund.

Height = 210 + 33(t - 2001)

b) The tree will be 2388 cm tall in 2067

c) The heights form an arithmetic progression.

We have,

a)

To model the growth of the tree using a linear equation, we can express it as:

Height = Initial Height + Growth Rate x Number of Years

In this case:

Initial Height = 210 cm

Growth Rate = 33 cm/year

Number of Years = (Current Year) - (Year when Renata moved in)

Let's denote the Current Year as "t." Since Renata moved into her house in 2001, the number of years can be represented as (t - 2001).

Putting it all together, the linear equation that models the height of the tree is:

Height = 210 + 33(t - 2001)

b)

To find the height of the tree in 2067, we substitute t = 2067 into the equation:

Height = 210 + 33(2067 - 2001)

Height = 210 + 33(66)

Height = 210 + 2178

Height = 2388 cm

Therefore, the tree will be 2388 cm tall in 2067.

c)

To check if the heights form an arithmetic progression, we need to determine if the differences between consecutive terms are constant.

In this case, the growth rate of the tree is 33 cm per year, which means the height increases by 33 cm each year.

Since the growth rate is constant, the heights form an arithmetic progression.

Thus,

a)

Height = 210 + 33(t - 2001)

b) The tree will be 2388 cm tall in 2067

c) The heights form an arithmetic progression.

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The complete question:

Since Renata moved into her house in 2001, she has been monitoring the height of the tree in front of her house. When it arrived, the tree was 210 cm tall and has been growing 33 cm per yeara) What is the linear equation that models this event? b) How big will the tree be in 2067? c) Area 3: Check it as an arithmetic progression.

Answer:

Make the -4 exponent in the denominator positive.

The area of the surface generated when f(x) = x^2 is rotated about the y-axis is (π/6)(9^(3/2)-5^(3/2)).

To determine the surface area of a curve when it is rotated about an axis, we can use the formula S= 2π∫a^b xf(x)√(1+(f′(x))^2)dx, where a and b are the limits of integration.

This formula provides the area of the surface formed when a curve is rotated about an axis.Let's suppose we have a curve f(x) = x^2.

To find the area of the surface generated when the curve is rotated about the y-axis, we will have to use the formula S = 2π∫0^1 x√(1+(2x)^2)dx.

When we calculate this integral,

we get S= 2π∫0^1 x√(1+4x^2)dx.

Using a u-substitution,

let u=1+4x^2, du=8xdx.

This simplifies the integral to S = (π/2)∫5^9 u^(1/2)du.

This integral evaluates to (π/6)(9^(3/2)-5^(3/2)).

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It should be noted that since the total volume of concrete figures is 5 cubic feet, the library should order 6 cubic feet of concrete to minimize leftover concrete.

We can also solve this problem by using the following equation:

Total volume of concrete figures = Number of figures * Volume of each figure

Plugging in the known values, we get:

Total volume of concrete figures = 5 figures * 1 cubic foot/figure = 5 cubic feet

Since the total volume of concrete figures is 5 cubic feet, the library should order 6 cubic feet of concrete to minimize leftover concrete.

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The scale factor that was used to create triangle D' include the following: C. Scale factor of 1/2

In Mathematics and Geometry, the scale factor of a geometric figure can be calculated by dividing the dimension of the image (new figure) by the dimension of the pre-image (original figure):

Scale factor = Dimension of image (new figure)/Dimension of pre-image (original figure)

By substituting the given dimensions into the formula for scale factor, we have the following;

Scale factor = Dimension of image/Dimension of pre-image

Scale factor = 8/16 = 6/12 = 10/20

Scale factor = 1/2.

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If the gravitational force produced between two masses kept 2 m apart is 100 N, the value when the masses are kept 4m apart is 25N

The gravitational force, which is what pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth.

Since we were given the first force as 100 N and X represent he second force , then the distance between the mass at first was 2m , and the second is 4m, the we can calculate as

[tex]\frac{100}{x} =\frac{4^{2} }{2^{2} }[/tex]

[tex]\frac{100}{x} =\frac{16}{4}[/tex]

[tex]x=\frac{4*100}{16}[/tex]

[tex]X=25 N[/tex].

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The decimal number which is represented by the light bulbs shown in the figure is 39.0

We have to find the decimal number which is represented by the the light bulbs.

Let us take the light bulbs as 1 and not lighted are 0.

The binary numeral of the light bulbs shown in the figure is 00100111.

Now let us find the decimal number.

(0×2⁷)+(0×2⁶)+(1×2⁵)+(0×2⁴)+(0×2³)+(1×2²)+(1×2¹)+(1×2⁰)

=32+4+2+1

=39

Hence, 39.0 is the decimal number which is represented by the light bulbs shown in the figure.

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Answer:

11.5

Step-by-step explanation:

Given:

Left side = 8

Bottom = a

Right side = 14

Using the Pythagorean theorem:

[tex]ax^{2}[/tex] + [tex]8x^{2}[/tex] = [tex]14x^{2}[/tex]

Simplifying the equation:

[tex]ax^{2}[/tex] + 64 = 196

Subtracting 64 from both sides:

[tex]ax^{2}[/tex]  = 132

Taking the square root of both sides:

a = [tex]\sqrt{132}[/tex]

Calculating the approximate value of "a":

a ≈ 11.5 (rounded to the nearest tenth)

Therefore, the value of "a" in the given right triangle is approximately 11.5.

Answer:

Slope is 5

Step-by-step explanation:

Slope-intercept form for a linear equation is y=mx+b where m is the slope and b is the y-intercept.

In this equation, our slope is m=5, and the y-intercept would be b=1.

The balance for each value of n is calculated by using the formula A = P(1 + r/n) ^nt. The rounded balance values are shown in the last column of the table above.

To complete the table and find the balance A if $3100 is invested at an annual percentage rate of 4% for 10 years and compounded n times a year.

The formula for calculating compound interest is as follows:

A = P(1 + r/n) ^nt,

where P represents the principal investment amount, r is the interest rate, n is the number of times the interest is compounded, t represents the time in years, and A represents the total amount, which includes the principal amount and the interest earned.

The table is given below:
[tex]\begin{array}{|c|c|c|} \hline \text{n} &

\text{A = P(1 + r/n) }^{nt} &

\text{Balance (rounded to nearest cent)} \\ \hline \text{1} &

\text{3100(1 + 0.04/1)}^{1*10} &

\text{\$4788.03} \\ \hline \text{2} &

\text{3100(1 + 0.04/2)}^{2*10} &

\text{\$4798.76} \\ \hline \text{4} &

\text{3100(1 + 0.04/4)}^{4*10} &

\text{\$4817.46} \\ \hline \text{12} &

\text{3100(1 + 0.04/12)}^{12*10} &

\text{\$4861.94} \\ \hline \end{array}[/tex]

The balance is obtained by substituting the values of P, r, n, and t into the compound interest formula.

In this case, the investment is $3100, the annual interest rate is 4%, the investment is for 10 years, and n is the number of times the interest is compounded.

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