Heeeeellllllllppppp lol

Did this today on a test lol.

(0,-7/2)

Answer:

potatoes

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

1.26

Step-by-step explanation:

21 - 15 = 6$

you have to find how many percent is 6$ in 15$

6 ÷ 15 = 0.4

15 × 0.4 (40/100)

= 6

40 percent

Answer:

a. Amplitude: 19.65446

b. Vertical Shift: 58.00713

c. Period: 2/0.22797 = 27.56146

d. 19.65446 * sin(0.22797x + 1.79552) + 58.00713

e. Model's Temperature at 10 A.M.: f(-7) = 61.91

   This value is 9.91 degrees higher than the actual value.

Step-by-step explanation:

With 1 am being timed as t = 1, we fitted the temperature data collected at different points during the day in Portland, Oregon using sine regression. After receiving the sine function, we respond to the many questions connected to the sine function's properties.

A smooth, repeating oscillation characterizes a sinusoidal function. Sine is an oscillation that is smooth and repeated, thus the name "sinusoidal." A pendulum swinging, a spring bouncing, or a guitar string vibrating are a few examples of commonplace objects that may be described by sinusoidal functions.

Given, The hourly temperature at Portland, Oregon, on a particular day is recorded.

Using sine regression on the given data with t = 1 being the hour 1 am etc, we get the following sine regression formula using the TI-83 Graphing Calculator where T is the temperature:

T = a sin(bt + c) + d

Where a = 19.65, b = 0.28, c = -2.93, d = 58.01

From the sine regression function above:

a. The amplitude of the sinusoidal function is a = 19.65.

b. The vertical shift is d = 58.01.

c. The period is 2*pi /b = 2*pi/ 0.28 = 22.44

d. At 5 PM, the time value is t = 17. Hence the temperature distribution with 5 PM being t = 0 will be

t = asin[b(t - 17) + c] +d.

e. From the table, at 10 AM, the actual value of the temperature is 52 degrees.

Using the model in part a., at 10 AM, with t = 10, the temperature will be

T = a sin(10b + c) + d

T = 55.46 degrees

Learn more about sinusoidal functions here:c. The period is

https://brainly.com/question/12060967

#SPJ2

Complete question:

Answer: the answer is f

Answer:

F

Step-by-step explanation:

the measure of angle one must be equal to the measure of angle five and when doing the math I got x=34 plug that into the equation for angle five i got 48 and the same for plugging it into the equation for angle one.

Answer:

A number that is 10x greater than 0.03 is 0.3.

Step-by-step explanation:

Answer:

The answer is c have a nice day

Answer:

it would be 12

Step-by-step explanation:

divided 12.25 by 12 and it gives you 1.0 giving you the lowest out of all of them when doing the math

Answer:

D. 12

Step-by-step explanation:

Answer:

C. 10

Step-by-step explanation:

[tex] (x + 5) = (2x - 5) [/tex] (vertical angles are congruent)

[tex] x + 5 = 2x - 5 [/tex]

Add 5 to both sides

[tex] x + 5 + 5 = 2x [/tex]

[tex] x + 10 = 2x [/tex]

Subtract x from both sides

[tex] 10 = 2x - x [/tex]

[tex] 10 = x [/tex]

[tex] x = 10 [/tex]

Answer:

The diameter will increase at a rate of 1/30π cm/min

Step-by-step explanation:

Here we want to calculate the rate at which the diameter will increase

Mathematically, the area of a sphere is given as;

A = 4πr^2

But r = d/2

so A = 4 * π * d/2 * d/2 = πd^2

dA/d(d) = 2πd

Thus dd/dA = 1/2πd = 1/2 * π * 15 = 1/30π

Given dA/dt = 10

Mathematically;

d(d)/dt = d(d)/dA * dA/dt

dd/dt = 1/30π * 10 = 10/30π = 1/3π cm/min

Answer: 5=49, 6= 131

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Answer:

38 + 3c

Step-by-step explanation:

I hope this helps!

Answer:

18

Step-by-step explanation:

The tens digit a is cubed (a³ ) still less than the biggest possible 1 -digit number . It can be only 0 or 1 , so even 2³ =8 ( in such case the unit digit is 15,- that's  not possible) .

0 can not be the the first digit in 2 digit number. So the only possible tens digit is 1. So the unit number is 1+7=8.

Answer 18

Answer:

18

Step-by-step explanation:

Answer:

1.00434

Step-by-step explanation:

Given the following :

Given a normal distribution ;

Mean (m) = 1.0 liter

Standard deviation (σ) = 0.01 liter

Sample size (n) = 25

For 97% sample means (sm) = 0.97

Z = (m - sm) / s

Zcrit = 1 - (100% - 97%)/2

Zcrit = 1 - (0.03/2)

Zcrit = 1 - 0.015 = 0.985

The z score which corresponds to 0.985 = 2.17

Upper limit : m + z*(σ/√n)

Upper limit : 1.0 + 2.17*(0.01/√25)

Upper limit : 1. 0 + 2.17*(0.01/5)

= 1.0 + 2.17*0.002

= 1.0 + 0.00434

= 1.00434

Answer:

Low statistical power could be considered a limitation in statistics because statistical power refers to the probability of correctly finding adequate support for a research hypothesis.

If a statistical test has low power, then it is limited in finding adequate support.

Answer:

[tex] g(3) - h(3) = -16 [/tex]

Step-by-step explanation:

Given:

[tex] g(x) = 2x - 5 [/tex]

[tex] h(x) = 4x + 5 [/tex]

Required:

[tex] g(3) - h(3) [/tex]

SOLUTION:

Substitute x = 3 into [tex] g(x) = 2x - 5 [/tex]

[tex] g(3) = 2(3) - 5 [/tex]

[tex] g(3) = 6 - 5 [/tex]

[tex] g(3) = 1 [/tex]

Substitute x = 3 into [tex] h(x) = 4x + 5 [/tex]

[tex] h(3) = 4(3) + 5 [/tex]

[tex] h(3) = 12 + 5 [/tex]

[tex] h(3) = 17 [/tex]

Therefore:

[tex] g(3) - h(3) = 1 - 17 = -16 [/tex]

Answer:

8 Miles per hour

Step-by-step explanation:

Answer:

8 miles per hour

Step-by-step explanation:

miles / hr = 96/12 = 8 miles per hr

hr / mile = 12/96 = 1/8 hr per mile <==

Answer:

1. 7.8.

2. 38. 4.5

3. 7.6.

Answer:

The value is  [tex]n =271[/tex]  

Step-by-step explanation:

From the question we are told that

  The margin of error is  [tex]E = 5\% = 0.05[/tex]

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 90 ) \%[/tex]

=>   [tex]\alpha = 0.10[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.645[/tex]

Generally we will assume that the sample proportion is [tex]\^ p = 0.5[/tex] since we have no information on the proportion of  of customers who click on ads on their smartphones

Generally the sample size is mathematically represented as

      [tex]n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p ) [/tex]

=>    [tex]n = [\frac{1.645 }}{0.05} ]^2 * 0.5 (1 - 0.5 ) [/tex]

=>    [tex]n =271[/tex]    

Using the z-distribution, as we are working with a proportion, it is found that 271 customers should be sampled.

A confidence interval of proportions is given by:

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which:

The margin of error is given by:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In this problem:

Then:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.05 = 1.645\sqrt{\frac{0.5(0.5)}{n}}[/tex]

[tex]0.05\sqrt{n} = 0.5 \times 1.645[/tex]

[tex]\sqrt{n} = [10(1.645)][/tex]

[tex](\sqrt{n})^2 = [10(1.645)]^2[/tex]

[tex]n = 270.6[/tex]

Rounding up, 271 customers should be sampled.

More can be learned about the z-distribution at https://brainly.com/question/25890103

Answer:

17 and [a+1] is the factor

Step-by-step explanation:

Given:

1/7a + 1/7

Find:

Factor

Computation:

1/7a + 1/7

By taking 1/7 as a common

1/7[a+1]

So,

17 and [a+1] is the factor

The coefficient of the variable term in factored form is; 1

The given expression is;

(1/7)a + 1/7

Now, we want to factorize this and this means that we will bring out the common factor of both terms.

The common factor of both terms is 1/7. Thus, we have;

(1/7)(a + 1)

The variable term is a and as such we see that it's coefficient inside the bracket is 1.

Read more at; https://brainly.com/question/2764126

Answer:

105 degrees

Step-by-step explanation:

180 - 75 = 105

Given:

The expression is

[tex]-6-(-2)[/tex]

To find:

The solution of given expression on the number line.

Solution:

We have,

[tex]-6-(-2)=-6+2[/tex]

[tex]-6-(-2)=-4[/tex]

So, the solution is -4.

Start from point 0, then use arrow to jump on -6 then use another arrow to jump 2 units right, as (-)(-)=(+) and positive sign means jump towards positive direction.

On the number line,

1. An arrow pointing from 0 to negative 6.

2. Another arrow pointing from negative 6 to negative 4.

Therefore, the correct option is A.

Answer:

what he say yeah

Step-by-step explanation: