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3 years ago

Write a blue print of a room a blueprint of a room drawn in a coordinate plane, using an appropriate scale – (out of 4)

1 answer:

8 0

What your going to want to do is take graph paper each square is five feet draw whatever shape your room is on it and take perimeter and area I cant write the reflection as I don't know what room you have drawn.

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5u − –20u − u − 18u + –11u = 10<br> HURRRY PLEEEEESEEEE I ONLY HAVE 4 minutes left

drek231 [11]

5u - (-20u) - u - 18u + (-11u) = 10
5u + 20u - u - 18u - 11u = 10
-5u = 10
-5(-2) = 10

So, in conclusion, X, is equal to -2.

8 0

2 years ago

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

Significance level : $\alpha=1-0.99=0.01$

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

4 0

3 years ago

F (x) = – 3x² + 3x + 7<br>Find f(8)

aliya0001 [1]

Answer:

-161

Step-by-step explanation:

$f(x)=-3x^2+3x+7\\f(8)=-3(8)^2+3(8)+7\\f(8)=-3(64)+24+7\\f(8)=-192+31\\=-161$

7 0

3 years ago

-1/2=3/2k+3/2 <br> Please show how you got your answer

Elza [17]

Hopefully this helps!

3 0

3 years ago

Please help me with this problem!!

dimaraw [331]

All of them are correct . Number six is 0.28 as a decimal

7 x 4
-- = 28; 0.28 is the answer
25 x 4

4 0

3 years ago