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3 years ago

6

a mural will be painted on a wall that is 63.5 inches high and 7 yards long. The wall also has two windows that are 2.5 square f

eet each. how much surface area will be painted?

1 answer:

nydimaria [60]3 years ago

5 0

So the answer might be 61.0 because if you subtract (-)63.5 with 2.5 it would 61.0 so i dont know ..but good luck and if i fail you im so sorry

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A large university is interested in the outcome of a course standardization process. They have taken a random sample of 100 stud

quester [9]

Answer:

Step-by-step explanation:

a)

Number of sample, n = 100

p = 0.78

q = 1 - p = 1 - 0.78

q = 0.22

For a confidence level of 90%, the corresponding z value is 1.645.

The formula for determining the error bound for the proportion is

z × √pq/n

= 1.645 ×√(0.78 × 0.22)/100

= 1.645 × 0.0414 = 0.068

The upper boundary of the population proportion is

0.78 + 0.068 = 0.85

The lower boundary of the population proportion is

0.78 - 0.068 = 0.71

b) For a confidence level of 95%, the corresponding z value is 1.96.

Therefore,

= 1.96 ×√(0.78 × 0.22)/100

= 1.96 × 0.0414 = 0.081

The upper boundary of the population proportion is

0.78 + 0.081 = 0.86

The lower boundary of the population proportion is

0.78 - 0.081 = 0.7

4 0

3 years ago

Help with this question ASAP!

user100 [1]

Answer:

After 4s

Step-by-step explanation:

Given the ball is initially projected upwards with a velocity of 64ft per sec and we are required to find the time at which it reaches the ground .There are many approaches to solve this problem we will follow this one:

It is also known as the time of flight for the ball which can be found by doubling the time taken for the ball to reach to its maximum height or the point where velocity is zero.

Now $h(t)=-16\times t^{2} +v_{0} \times t+h_{0}$

For the time taken to reach the max height $\frac{dh}{dt} =0$ .

Which implies that -32t+v=0.

∴Time taken to travel halfway through the path =2sec.

∴total time = $2\times 2=4sec$

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3 years ago

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777dan777 [17]

Answer:

1

Step-by-step explanation:

Substitute the value of the variable into the expression and simplify.

4-2-1=1

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3 years ago

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X+5/-2=x-10/7<br><br> What does x=

topjm [15]

X= 1 x+5/2=1 which is x .10/2

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3 years ago

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A cube has an edge length of 5 inches. Determine the total surface area of the cube.

KonstantinChe [14]

Answer:

Step-by-step explanation:

surface area=4 *x²+2 x²=6x²=6 ×5²=150 sq. in.

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3 years ago