Find the value of y.
1089
400
w
2
y = ? 10

Answer:

Look below

Step-by-step explanation:

2/3  -  1/4 = m

Hope this Helps!

Answer:

129 sq. ft.

Step-by-step explanation:

15ft.x10ft = 150 ft

7ftx3ft = 21 ft

150 - 21 =1 29 sq. ft.

Answer:

21

Step-by-step explanation:

Answer: B is correct

Step-by-step explanation:

Answer:

The scale of the model is 1 in.: 12 ft.

Step-by-step explanation:

Because 7 in.: 84 ft. simplifies to 1 in.: 12 ft. as 84/7 = 12/1

Answer:

A sample size of 392 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is:

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

18% of students struggle in their classes because they don't spend more than 8 hours studying independently outside of a 4-unit class.

This means that [tex]\pi = 0.18[/tex]

99% confidence level

So [tex]\alpha = 0.01[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].

You would like to be 99% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required?

A sample size of n is required.

n is found when M = 0.05. So

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

[tex]0.05 = 2.575\sqrt{\frac{0.18*0.82}{n}}[/tex]

[tex]0.05\sqrt{n} = 2.575\sqrt{0.18*0.82}[/tex]

[tex]\sqrt{n} = \frac{2.575\sqrt{0.18*0.82}}{0.05}[/tex]

[tex](\sqrt{n})^2 = (\frac{2.575\sqrt{0.18*0.82}}{0.05})^2[/tex]

[tex]n = 391.5[/tex]

Rounding up:

A sample size of 392 is required.

Answer:

i believe it is d

Step-by-step explanation:

the line thats in between the two squares is the median. Town A's median is 30 and Town B's median is 40, making Town's A median less than Town B's. hope i helped:)

The median for town A at 30° is less than the median for town B at 40°. So option (D) is the correct answer.

"The median is the "middle" of a sorted list of numbers. To find the median, place the numbers in value order and find the middle number".

For the given diagram,

Town A has temperatures = 20°, 30°, 40°

Town B has temperatures = 30°, 40°, 50°

The median of A = 30°

The median of B = 40°

From the above values, the median for town A at 30° is less than the median for town B at 40°.

Hence we can conclude that option (D) is the correct answer.

Learn more about median here

https://brainly.com/question/16949317

#SPJ2

Answer:

22%

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

1dime= 10 and 1pennie= 1 so it's 10+10=20 and 1+1=2 so you can add that and get 20+2=22

Answer:

The answer of the first one is b

Step-by-step explanation:

going left is negative and going up is positive

Answer:

12. a

13a. (-3, 2)

13b.[tex]12\sqrt{2}[/tex]

13c. [tex]( x +3 )^2 + ( y - 2 )^2 = 288[/tex]

Step-by-step explanation:

13a. Graph endpoints and find the center, and to find the center we can use the midpoint formula.

[tex]midpoint = (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})\\ = (\frac{-9+3}{2},\frac{-4+8}{2})\\= (\frac{-6}{2},\frac{4}{2})\\ = (-3,2)[/tex]

13b. Use given points and use distance formula to find radius.

[tex]distance = \sqrt{({x_2-x_1})^2+({y_2-y_1})^2}\\= \sqrt{({3-(-9)})^2+({8-(-4)})^2}\\= \sqrt{({3+9})^2+({8+4})^2}\\=\sqrt{({12})^2+({12})^2}\\ =\sqrt{({12})^2+({12})^2}\\= \sqrt{144+144} = \sqrt{288} = 12\sqrt{2}[/tex]

13c. Refer back to 13a and 13b to setup the equation of the circle.

[tex]( x - h )^2 + ( y - k )^2 = r^2\\( x - (-3) )^2 + ( y - 2 )^2 = (12\sqrt{2})^2\\( x +3 )^2 + ( y - 2 )^2 = 288[/tex]

Sorry if it looks long but I hope that helps!

9514 1404 393

Answer:

  29

Step-by-step explanation:

We can use ...

  (a +b +c)² = a² +b² +c² +2(ab +bc +ca)

  9² = a² +b² +c² +2(26)

  a² +b² +c² = 81 -52 = 29

Step-by-step explanation:

We know the formula:

(a+b+c)² = a² + b² + c² + 2(ab+bc+ca)

Given:

a+b+c = 9 & ab+bc+ca = 26

Now putting the values in the above formula,

We get,

(9)² = a² + b² + c² + 2×26

81 = (a² +b² +c²) + 52

(a² +b²+c²) = 81-52

(a² + b² + c²) = 29 (Answer)

Answer:

1. regular pentagon prism

2.traingular prism

3.cylinder

Answer:

86

Step-by-step explanation:

the rectangle portion is 18*4= 72

1 triangle portion is 1/2bh where the base is 4 and height is 3.5

1/2*14=7

the 2nd triangle as the same proportions, so it is also 7

72+7+7=86

[tex]\huge\tt\pink{QUESTIOŃ★᭄}[/tex]

sum of all angles is 180 degree two of them is 58 degree and 47 degree and one more is named x ...

sum of 47 degree and 58 degree = 105°

180°-105°= 75°

your answer was 75

Answer:

Okay..

Step-by-step explanation:

Your are cunfoosing, help meh understand what ur sayin

Answer:

F

Step-by-step explanation:

Answer:

9/8 feet per hour fast is Kelly's knitting speed

Step-by-step explanation:

Mark Brainliest Please!

Answer:

128√5/3 mm³

Step-by-step explanation:

Since we are not told what to find, we can as well look for the volume of the pyramid

Volume of a square pyramid: V = (1/3)a²h

a is the side length of the square

h is the height of the pyramid

Given

a = 8mm

l² = (a/2)² + h²

l² = (a/2)² + h²

6² = (8/2)² + h²

h² = 6² - 4²

h² = 36 - 16

h² = 20

h = √20

Volume of a square pyramid =  (1/3)*8²*√20

Volume of a square pyramid = 1/3 * 64 * 2√5

Volume of a square pyramid = 128√5/3 mm³

Answer: y=x+1

Step-by-step explanation:

Answer:

A right-tailed test should be used to test whether there evidence that the average strength of the new fishing line is greater than 15 kilogram.

Step-by-step explanation:

Type of procedure:

We want to test if the breaking strength is greater than a value, which means that the type of procedure used to solve this question is a right-tailed test, which is when we find the probability of having a mean higher than the sample mean found.

Other types of procedures:

Not related to this question speficially, but to similar problems.

To test if a measure is less than another measure, the procedure used is a left-tailed test.

To test if a measure is different from another measure, the procedure used is a two-tailed test.

Answer:

50cm^2

Step-by-step explanation:

side length is square root 50 so you multiply  square root 50  by  square root 50 which gives you 50

Answer:

129 cm

Step-by-step explanation:

The total height of all the people: 150 × 4 = 600 cm

The total height of Sally, Jackson and Tina: 145 × 3 = 435 cm

David’s height: 600 – 435 = 165 cm

Tina’s height: 165 + 5 = 170 cm

Jackson’s height: 170 × 4/5 = 136 cm

Therefore, Sally’s height: 600 – 165 – 170 – 136 = 129 cm

Thenks and mark me brainliest :))

The height of Sally will be 133 centimeters and the height of Jackson is 132cm.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

The average height of Sally, Jackson, Tina, and David is 150 cm per person. Then the equation is given as,

(S + J + T + D) / 4 = 150

S + J + T + D = 600  ...1

The average height of Sally, Jackson, and Tina is 145 cm per person. Then the equation will be

(S + J + T) / 3 = 145

S + J + T = 435      ...2

Tina is 5 cm taller than David. Then the equation will be

T = D + 5  ...3

Jackson is 4/5 as tall as David. Then the equation will be

J = (4/5)D    ...4

From equations, 1 and 2, then we have

435 + D = 600

D = 165 cm

From equation 4, then we have

J = (4/5) x 165

J = 132 cm

From equation 3, then we have

T = 165 + 5

T = 170 cm

From equation 2, then we have

S + 132 + 170 = 435

S = 133 cm

The height of Sally will be 133 centimeters.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ5

Answer: x = -30

Step-by-step explanation:

y = -20 by using process of elimination substitute y as -20 in either of the equations you get -30 for x

The solution to the system of equations is x = 390 and y = 50. The value of x is equal to 390.

To find the value of x, solve the system of equations using the method of  substitution . Let's use the method of elimination:

Given equations:

x - 12y = -210                      (1)

x - 6y = 90                          (2)

To eliminate x, we can subtract equation 2 from equation 1:

(x - 12y) - (x - 6y) = (-210) - 90

Simplifying the equation:

x - 12y - x + 6y = -210 - 90

-6y = -300

Divide both sides of the equation by -6:

y = -300 / -6

y = 50

Now, substitute the value of y back into either equation:

x - 6(50) = 90

Simplify the equation:

x - 300 = 90

Add 300 to both sides of the equation:

x = 90 + 300

x = 390

Therefore, the solution to the system of equations is x = 390 and y = 50.

Learn more about Substitution method here:

https://brainly.com/question/22340165

#SPJ6

Answer:

Step-by-step explanation:

arc BE is the same as the interior angle, or 76°

BE = 76 °

we can also find arc CE the same way,  b/c we can see that the interior angle is the suppment with 76  or   180-76 = CE  or 104°

Now we know all the arcs but arc CD

so use the idea that all the way around the circle is 360°

360 = 76 + 104 + 140 + CD

360 - 76 - 104 - 140 = CD

40 = CD

CD = 40 °

Answer:

47°

Step-by-step explanation:

the sum of total is 180

here if one is mentioned as 43 the other side is also 43

then, we get as 86 as we now found two side.

now 180-86=94

divide 94/3 and we get 47° is the answer.

PLEASE RECHECK THE ANSWER I HOPE ITS CORRECT

Answer:

24

Step-by-step explanation:

First you start by writing down all the combinations that start with each number. Then you just write the left over numbers and you'll end up with 24 because the is six of each starting number. Ex: 123, 132, 134, 143, 124, 142...

Answer:

30

Step-by-step explanation:

Answer:

answer: 35

Hope this helps!

Answer:

62%

Step-by-step explanation:

[tex] \frac{1240}{2000} \times 100 = 64\%[/tex]

Answer:

Step-by-step explanation:

If its fractions, you would do 5/47

Answer:

about 23 minutes

Step-by-step explanation:

(65x35)/(65+35)= 2,275/100= 22.75 minutes (or 23 if rounded)

10

you 5×2=10

that how you get your answer