Answer:
A 1/3
Step-by-step explanation:
5/12+1/4= 8/12= 2/3
1-2/3=1/3
one over four times x is equal to -2. What is x?
Answer:
x = -8
Step-by-step explanation:
Step 1: Write the equation
1/4x = -2
Step 2: Divide both sides by 1/4
You should get -8 as your final answer.
Answer:
x = -8
Step-by-step explanation:
1/4 x = -2
Multiply each side by 4
1/4 x * 4 = -2*4
x = -8
What is the excluded value?
0
1/2
1
Answer:
excluded value is 1/2
Step-by-step explanation:
The excluded value is the value when the denominator is equal to zero
1 -2x =0
Subtract 1 from each side
-2x = -1
Divide by -2
-2x/-2 = -1/-2
x = 1/2
The excluded value is 1/2
How do you answer the questions in the picture?? Please helppp!!
Answer:
a) 1.50 m/s²
b) 675m
c) 11.25 m/s
Step-by-step explanation:
1. a) Acceleration can be found from the gradient of a speed-time graph, which is the graph we have here.
Notice that the graph from t=0 to t=10 has the same gradient thoughout (since it is a straight line). Hence, the acceleration when t=4 is the same as the acceleration from t=0 to t=10.
To find the gradient of the graph from t=0 to t=10, use the gradient formula below:
gradient=[tex] \frac{y1 - y2}{x1 - x2} [/tex]
The coordinates of the point at t=0 is (0,0) and the point at t=10 is (10,15).
Thus, gradient
[tex] = \frac{15 - 0}{10 - 0} \\ = \frac{15}{10} \\ = 1.5[/tex]
Therefore the acceleration when t=4 is 1.50 m/s².
*Acceleration is the rate of change of velocity (or speed).
b) Distance travelled can be found by calculating the area under a speed-time graph.
The area under the graph is the orange trapezium that the question has shaded for you already.
Formula for area of trapezium= ½(a+b)(height)
a+b is the total length of the two parallel horizontal lines of the trapezium.
Let the top line be a and the bottom line be b.
length of a= distance between (10,15) and (40,15)
Length of a
= 40 -10
= 30 units
Length of b
= 60 -0
= 60 units
height of trapezium= 15 units
Area of trapezium
= ½(30 +60)(15)
= 675 units²
Thus, the distance travelled is 675m.
c) Avg speed= total distance ÷ total time
From part b, we know that the total distance travelled is 675m. The total time is 60s since the graph is from t=0 to t=60.
Hence, average speed
= 675 ÷60
= 11.25 m/s
A scientist is filling beakers of water for an experiment. He begins with 3 liters of water in a large container and each beaker holds 2/5 of a liter of water. How many beakers can the scientist fill? *
Answer
7 beakers
Step-by-step explanation:
going by filling the beakers it goes 2/5 4/5 7/5 (1 2/5) 1 4/5 2 1/5 2 3/5 3 beakers. Count that and it equals 7 beakers using 3 liters of water.
Elmer purchased a used vehicle that depreciates under a straight line method. The initial value of the car is $9600 and the salvage value is $600. If the car is expected to have a useful life of another 6 years, how much will it depreciate each year?
A. $100.00
B. $1500.00
C. $3600.00
D. $600.00
Answer:
The depreciation each year is option B. $1500.00
Step-by-step explanation:
Initial value of car = $9600
Salvage value = $600
Salvage value is the final value of product after all the depreciation have been applied on the product.
So, total depreciation on the car = [tex]\$9600 - \$600 \Rightarrow \$9000[/tex]
Also, it is given that the depreciation occurs at a straight line method i.e. same depreciation occurs every year.
Depreciation in 6 years = $9000
Depreciation in 1 year =
[tex]\dfrac{\$9000}{6} \Rightarrow \$1500[/tex]
Hence, option B. $1500 is the correct answer for the depreciation every year.
Which of these expressions can be used to calculate the monthly payment for
a 30-year loan for $190,000 at 11.4% interest, compounded monthly?
??
Answer:
$1,867.07 monthly payment
Step-by-step explanation:
1. Define variables to calculate the monthly payment for loans, using:
A = total loan amount (how much you borrow)
R = annual interest rate (in %)
N = number of payments per year
2. Use this formula to calculate monthly payment (M):
[tex]M = A* \frac{R}{N}[/tex]
3. Substitute variables with values from excercise as below (11.4% = 0.114):
[tex]M = 190000 * \frac{0.114}{12} = 1867.07[/tex]
4. The calculated result is a monthly payment installment in given currency (in this case $)
Use a model to divide. 1 ÷ 1/5
Answer: 5
Step-by-step explanation: just incase no one could see it
in the following triangle theta=60.Find the values of the angles of the angles B and B'
lengths of sides are 15.4 on the first two and 16 on the third side
Answer:
∠B` = 109.73°, ∠B = 70.27°
Step-by-step explanation:
∠B + ∠B` = 180°
The Sine Law:
10 / sin B` = 9.2 / sin 60°
10 / sin B` = 9.2 / √3/2
sin B` = 0.94133
B` = sin^(-1) 0.94133
∠B` = 109.73°, ∠B = 70.27°
Solve the equation using square roots.
[tex]4x^{2} +9=0[/tex]
Isolating the variable terms and dividing by 4, we have [tex]x^2=-\frac{9}{4}.[/tex] Taking the square root, we have [tex]\boxed{x=\frac{3i}{2},-\frac{3i}{2}}.[/tex]
Find two mixed numbers or fractions with a quotient of 3.2
Answer:
[tex]\frac{32}{10}\\\\\frac{64}{20}\\\\\frac{96}{30}[/tex]
These all thave the same quotient of 3.2
Step-by-step explanation:
The fractions which are given and and which are also required are called equivalent fraction. In this, the denominator and numerator of both fractions is different, but when you divide the numerator and denominator to get a value, the values of both the fractions are found same.
To find 2 mixed number or fraction with a quotient 3.2.
We can write 3.2 in the fractional form:
[tex]3.2 = \frac{32}{10}[/tex]
Now multiply both the numerator and denominator with 2, we get
[tex]\frac{2\cdot32}{2\cdot10}= \frac{64}{20}[/tex]
which also has the quotient 3.2
Similarly, multiply both numerator and denominator of 32/10 by 3, we get
[tex]\frac{3\cdot32}{3\cdot10}=\frac{96}{10}[/tex]
whici also has the quotient of 3.2
Similarly we can go on to find as many values as we want with the same quotient.
PLS HELP RQ!!!!!!!!!!!!!11
Answer:
3 3/4 cubic inches
Step-by-step explanation:
2.5*1.5*1
Answer:
15 cubic inches
Step-by-step explanation:
how many solutions does 6x + 3 = 6x + 3 have ?
Answer:
Infinite
Step-by-step explanation:
6x+3=6x+3
6x=6x
x=x
Infinite
The number of solutions should be infinite.
Calculation of the number of solutionsSince the equation is
6x + 3 = 6x + 3
So here,
6x+3=6x+3
6x=6x
x=x
So based on the above calculations, we can conclude that The number of solutions should be infinite.
Learn more about equation here: https://brainly.com/question/15844891
10 points! How could you correctly rewrite the equation 4(5 + 3) = 2(22 – 6) using the distributive property?
A]20 + 18 = 44 – 6
B] 20 + 3 = 44 - 6
C]12 + 20 = - 12 + 44
D]20 + 12 = 44 – 12
Answer:
Option D
Step-by-step explanation:
[tex]4(5 + 3) = 2(22 -6)\\\boxed{\text {For the first part of the equation:}}\\\\4(5+3)\\\\=> 4*5 = 20\\=> 4*3 = 12\\\\\boxed{4(5+3)=20+12}\\\\\\\boxed{\text {For the second part of the equation:}}\\\\2(22-6)\\\\=> 2*22=44\\=> 2*-6 = -12\\\\\boxed{2(22-6)=44-12}\\\\\text {Put the two parts together, and we get:}\\\huge{\boxed{20+12=44-12}[/tex]
Find the distance between these points.
R(-1, 0), S (8, 6)
√(26)
√(85)
3√(13)
Answer:
3√13
Step-by-step explanation:
Distance = (-1,0) (8,6) =3√13
1: The distance between (-1,0) (8,6) is= √8-(-1))2+(6-0)2 = 3√13
Answer: 3√13
Hope this helps.
4(7x-1)=3(2x+1)-4(x+6) plzz help
Answer:
[tex]x=-\dfrac{17}{26}[/tex]
Step-by-step explanation:
[tex]4(7x-1)=3(2x+1)-4(x+6)[/tex]
Expand parentheses:
[tex]28x-4=6x+3-4x-24[/tex]
Combine like terms:
[tex]28x-4=2x-21[/tex]
Subtract 2x from both sides:
[tex]26x-4=-21[/tex]
Add 4 to both sides:
[tex]26x=-17[/tex]
Divide both sides by 26:
[tex]x=-\dfrac{17}{26}[/tex]
Hope this helps!
Answer:
[tex]x = \frac{ - 17}{26} \\ \\ [/tex]
Step-by-step explanation:
[tex]4(7x - 1) = 3(2x + 1) - 4(x + 6) \\ 28x - 4 = 6x + 3 - 4x - 24 \\ 28x - 6x + 4x = 4 + 3 - 24 \\ 26x = - 17\\ \frac{26x}{26} = \frac{ - 17}{26} \\ x = \frac{ - 17}{26} \\ [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Work must be shown for this problem! The figure shown below is a rectangle. Give the angle value (numerical, not the letters).
Answer:
58 degrees
Step-by-step explanation:
In a rectangle, the two diagonals form four isosceles triangles. This means triangle EBC is isosceles. In an isosceles triangle, the two base angles are the same. So, angles EBC and BCE are both 61. Now, in a triangle, the three angles add up to 180. So, 61+61=122, and to find angle CEB you need to subtract 180-122. 180-122=58 degrees.
Answer:
58°
Step-by-step explanation:
to find m∠CEB
triangle CEB is formed by the two parts of rectangle diagonals (and BC), and as we know, diagonals bisect each other, thus EB is congruent to EC, and it is an isosceles triangle
We also know that angles opposite congruent sides are congruent, thus,
angles EBC and ECB are congruent
thus angle ECB= 61°
We know that the inner angle measures of a triangle according to Angle Sum Theorem add up to 180°
Thus,m angle EBC + m angle ECB + m angle CEB= 180
Now we know that both EBC and ECB are angles with the measure of 61 °, so lets put the measures in instead of angles into the equation
61+61+m angle CEB=180
122 + m angle CEB =180
m angle CEB=180-122
m angle CEB=58°
Which represents where f(x) = g(x)?
f(2) = 9(2) and f(0) = g(0)
f(2) = g(0) and f(0) = g(4)
f(2) = g(0) and f(4) = g(2)
of(2) = g(4) and f(1) = g(1)
Answer:g
2
Step-by-step explanation:the is answer is by the multiply the numbers
Noah says that 9x - 2x + 4x is equivalent to 3x, because the subtraction sign tells us to subtract everything that comes from after 9x. Elena says that 9x - 2x + 4x is equivalent to 11x, because the subtraction only applies to 2x. Do you agree with either of them? Explain ur reasoning. i
Agree with Elena, because 9x - 2x + 4x is equivalent to 11x, after the subtraction only applies to 2x.
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Noah says that 9x - 2x + 4x is equivalent to 3x, because the subtraction sign tells us to subtract everything that comes from after 9x.
And, Elena says that 9x - 2x + 4x is equivalent to 11x, because the subtraction only applies to 2x.
Now,
Since, We know that;
⇒ 9x - 2x + 4x
⇒ 7x + 4x
⇒ 11x
Thus, Elena is correct as;
⇒ Elena says that 9x - 2x + 4x is equivalent to 11x, because the subtraction only applies to 2x.
Learn more about the subtraction visit:
https://brainly.com/question/17301989
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In June, Meg runs a race 10 seconds faster than she did in April. Let y represent her finishing time for the race in April. Which expression represents her faster time in June?
y - 10
y + 10
10 - y
Answer:
y+10
Step-by-step explanation:
Answer:
The first one
Step-by-step explanation:
Y-10 bc she ran 10 seconds faster
Many individuals over the age of 40 develop intolerance for milk and milk-based products. A
dairy has developed a line of lactose-free products that are more tolerable to such individuals. To
assess the potential market for these products, the dairy commissioned a market research study of individuals over 40 years old in its sales area. A random sample of 250 individuals showed that 86 of them suffer from milk intolerance. Based on the sample results, calculate a 90% confidence
interval for the population proportion that suffers milk intolerance. Interpret this confidence interval.
a) First, show that it is okay to use the 1-proportion z-interval. (Assumptions)
b) calcuate by hand a 90% confidence interval (use the formula)
c) provide an interpretation (conclusion)
d) if the level of confidence was 95% instead of 90% would the resulting interval be narrower or wider? explain. (show your computation before your explanation)
e) if the researchers were interested in the 90% interval with the 3% margin of error what size sample would they require?
f) verify your 90% confidence interval using your calculator.
Answer:
p = 86/250 = 0.344
z_c = 1.65 at 90% confidence.
margin of error, E = sqrt(pq/n)*z_c
= sqrt(0.344*(1-0.344)/250)*1.65
= 0.0496
90% CI = (p -E , p + E)
= (0.344 - 0.0496 , 0.344 + 0.0496)
= (0.2944, 0.3936) (Ans.)
Step-by-step explanation:
PLEASE PLEASE HELP
A study of parents of kindergarteners included 349 parents who were chosen at random of these parents, 47% said they sent their children to pre-kindergarten
School records show that only 31% of parents of kindergarteners sent their children to pre-kindergarten. Identify the statistic and the parameter.
Three hundred forty-nine is the parameter and 47% is the statistic.
Answer: Forty-seven percent is the statistic and 31% is the parameter.
Step-by-step explanation:
Here is the complete question:
A study of parents of kindergarteners included 349 parents who were
chosen at random. Of these parents, 47% said they sent their children to pre-kindergarten. School records show that only 31% of parents of kindergarteners sent their children to pre-kindergarten. Identify the statistic and the parameter.
Three hundred forty-nine is the parameter and 47% is the statistic.
Three hundred forty-nine is the statistic and 47% is the parameter.
Three hundred forty-nine is the parameter and 31% is the statistic.
Forty-seven percent is the parameter and 31% is the statistic.
Forty-seven percent is the statistic and 31% is the parameter.
A parameter is a value which tells one about something about a population. A parameter is the opposite of a statistic. A statistic tells you something about a small part of the population.
Sample size (n) = 349
From the given sample, we are told that 47% parents sent their students to pre-kindergarten and also that the school record shows that 31% parents sent their students to pre-kindergarten which is, p =0.31
So, 47% is the statistic and 31% is the parameter.
Answer:
Forty-seven percent is the statistic and 31% is the parameter.
Step-by-step explanation:
I’m stuck on this can someone help?
Answer:
13
Step-by-step explanation:
f(10)=10/2+8
f(10)=5+8
f(10)=13
Hey there!
Answer:
f(x) = 13 when x = 10.
Step-by-step explanation:
To find f(x) when x = 10, simply substitute '10' for 'x'.
[tex]f(x) = \frac{x}{2} + 8[/tex]
Subsitute in '10' for 'x':
[tex]f(10) = \frac{10}{2} + 8[/tex]
Simplify:
[tex]f(10) = 5 + 8[/tex]
[tex]f(10) = 13[/tex]
Therefore, f(x) = 13 when x = 10.
What angle has the same sine value between 0-180? as Sin 24
A Sine 156
B Sine 123
C Sine 145
D Sine 154
Answer:
[tex]Sin156[/tex]
Step-by-step explanation:
Given
[tex]Sin24[/tex]
Required
Find equivalent between 0 to 180;
Let 24 be represented by [tex]\theta[/tex]
So, [tex]\theta = 24[/tex]
From Trigonometry ratios;
[tex]Sin\theta = Sin(180 - \theta)[/tex] where [tex]0\leq \theta \leq 180[/tex]
Recall that [tex]\theta = 24[/tex]
So, we have to substitute 24 for [tex]\theta[/tex] in the above expression.
This gives
[tex]Sin24= Sin(180 - 24)[/tex]
Subtract 24 from 180
[tex]Sin24= Sin156[/tex]
Hence, the equivalent of [tex]Sin24[/tex] is [tex]Sin156[/tex]
FACTOR
h² + 9hj + 14j²
Answer:
(h+7j)*(h+2j)
Step-by-step explanation:
h^2+7hj+2hj+14j^2
h*(h+7j)+2j*(h+7j)=(h+7j)*(h+2j)
So the right answer is (h+2)(h+7j)
please see attached picture for full solution
Hope it helps
Good luck on your assignment
Stay safe
A circular garden has a diameter of 6 feet. There are 2 sections of blue flowers and 1 section of white flowers as shown. What is the area of the section with the white flowers?
Answer:
[tex]( Exactly ) 5.25\pi[/tex]
Step-by-step explanation:
[tex]See Attachment Below;[/tex]
Which number is rational , an integer , and a real number ?
ANSWER: The answer is C
Suppose the theater decides to have a third popcorn size, the super box. They want the super box to have a length of 6.5 inches, a width of 6.5 inches, and a height of 11 inches. Which of the three boxes should cost the most? Explain your reasoning.
Answer:
(if their are no measurements for the smaller boxes) the biggest should cost the most
Step-by-step explanation:
it should hold the most popcorn and their for cost the moast
Explain how to find the other leg if the hypotenuse is 25cm and one leg measures 7 cm.
______________________________
The other leg equals 24 cm
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
___________________________.
Evelyn can run 5 laps around the track in 11 minutes. If she runs for an hour, how many laps will she run?
Answer:
27 laps
Step-by-step explanation:
So first step is to work out how many times 11 fits into 60
[tex] \frac{60}{11} = 5.4545455[/tex]
Then you would times that by the number of laps which is 5
[tex]5.454545455 \times 5 = 27.27.....[/tex]
So it is 27 laps as .27 of a lap is not a complete lap
Write the equation of a line that passes through (1,9) and has a slope of -3, please!
Answer:
y = -3x + 12
Step-by-step explanation:
Very similar to the other question i answered, by here's a step by step anyway in case you find it helpful : )
There are lots of different methods to do these types of questions, but this is the way i like to do it.
Coordinate (x1, y1) : (1, 9) and Gradient (m): -3
Start with this generic equation:
y- y1 = m(x-x1)
Substitute in the values they have given you:
y - (9) = -3(x-1)
This becomes:
y -9 = -3x +3
Keep solving by moving the 10 over to the other side:
y = -3x + 3 +9
y = -3x + 12
An easy way to double check:
1) the coefficient of x is the slope. We got -3x, and the slope is -3, so that's correct.
2) Substitute x=1 into the equation, and we get 9, which is the exact coordinate that they gave us. This is also right.
Hope this helped : )
