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Hitman42 [59]
3 years ago
15

Calculate the area for each shape.

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0
Trapezoid- 45 square units
Triangle- 27 square units
Parallelogram (to the right figure):
30 square units

MARK ME BRAINLIESTT PLEASE
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The area of a rectangle is 27ft^2, and the length of the rectangle is 3ft less than twice the width. find the dimensions of the
Elanso [62]
The answer is 4.5.

The formula for a rectangle is A = lw. Substitute the formula, so it'll be 27 = (2x - 3) * x. Evaluate the formula.

Hope this helps you! And rate me to see if I did it right. Thanks!
3 0
3 years ago
Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best po
Brrunno [24]

Answer: (0.63, 7.07)

Step-by-step explanation:

The confidence interval for population proportion is given by :-

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

Given :\hat{p} =0.7 ;  n=110

Significance level : 1-0.90=0.1

Critical value :  z_{\alpha/2}=1.645

Now, a 90% confidence interval for population proportion will be :-

0.7\pm (1.645)\sqrt{\dfrac{0.7(1-0.7)}{110}}\\\\\approx0.7\pm0.07\\\\=(0.7-0.07,0.7+0.07)=(0.63,\ 7.07)

Hence, a 90% confidence interval for population proportion = (0.63, 7.07)

5 0
3 years ago
Can someone help me please.
Katyanochek1 [597]
The first fraction is 7/10.
The second bag has the same probability as the top so just copy the fractions into the boxes.
To calculate the probability of the same colour being chosen you follow these steps.
P(RR) = 3/10 x 4/9 = 12/90
P(GG) = 7/10 x 5/9 = 35/90
Then add the two fractions.
12/90 + 35/90 = 47/90
The last box is 47/90.
5 0
3 years ago
Simplify the expression using the order of operations.<br><br> 16 + 30 ÷ 5 − 2^2 =
aivan3 [116]

Answer:The answer is 6

8 0
3 years ago
Read 2 more answers
Yes or no ?? i need helppp
tekilochka [14]

Answer:

it is linear and it does have a constant rate of change

Step-by-step explanation:

4 0
3 years ago
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