3 years ago

Please helpppp asappp

Mathematics

1 answer:

viva [34]3 years ago

3 0

Answer:

=561.2 square feet

Step-by-step explanation:

top rectangle=19×8=152

bottom rectangle=5×8=40

two slanting rectangles=8×14×2=224

two side trapezium=(19+5)÷2=12

1/2×12×12.1×2=145.2

add them all

152+40+224+145.2=561.2

You might be interested in

Mileage tests are conducted for a particular model of automobile. If a 98% confidence interval with a margin of error of 1 mile

Llana [10]

Answer: 37

Step-by-step explanation:

Given : Significance level : $\alpha:1-0.98=0.02$

Critical value : $z_{\alpha/2}=z_{0.01}=2.33$

margin of error : E= 1 mile per gallon

Population standard deviation: $\sigma=2.6$ miles per gallon.

We know that when the population standard deviation is known then the formula to find the sample size is given by :

$n=(\dfrac{z_{\alpha/2}\times \sigma}{E})^2$

$n=(\dfrac{(2.33)\times 2.6}{1})^2=36.699364\approx37$ [Round to the next whole number.]

Hence, the required number of automobiles should be used in the test = 37

7 0

3 years ago

In the nocturnal house at the zoo, there are 4 bats for every 3 spiders. If there are 112 bats and spiders, how many are bats? H

In-s [12.5K]

Answer:

Step-by-step explanation:

hehsn. iuxxj y eiwyaoa

5 0

3 years ago

Plzzz help will give brainlist, and im stuck on the answer

MakcuM [25]

Answer:

Likely

Step-by-step explanation:

0.90 is also equal to 90% which is very likely to happen.

6 0

3 years ago

Which equation represents a line with a slope of -2?

tekilochka [14]

y= mx+b

slope is also m

b= y-intercept

Answer: b. y = -2x +-1

4 0

3 years ago

Read 2 more answers

Four friends together bought 126 acres of

Softa [21]

Answer:

31.5 acres

Step-by-step explanation:

7 0

3 years ago