Ask question

Ask question

All categories

2 years ago

15

Nancy is replacing the mat on her trampoline. The circular mat has a diameter of 18 feet. what is the area of the trampoline mat

to the nearest square foot?
Someone please help me <3 :( :)

1 answer:

hjlf2 years ago

7 0

Answer : 254 ft sq

A = pi x r^2

A = 3.14 x 81

You might be interested in

Amy is eight years older than twice her cousin Alicia’s age. The sum of their ages is less than 32. Let x represent Alicia's age

horsena [70]

Ok, so amy is 8 years older than twice alica's age
if amy=y and alica=x
y=8+2x

and sum is less than 32
y+x<32

we can subsitute 8+2x for y in other equation
8+2x+x<32
8+3x<32
minus 8 both sides
3x<24
divide both sides by 3
x<8

the inequality is x<8

4 0

3 years ago

The temperature in Waterloo was − 5°C at sunrise. By noon the temperature had risen by 12 Celsius degrees. What was the temperat

allochka39001 [22]

The answer is 7° Celsius.

6 0

3 years ago

Read 2 more answers

Suppose a 2011 Gallup poll revealed that 76% of Americans believe that high achieving students should be recruited to become tea

k0ka [10]

Answer:

95% Confidence interval: (0.73,0.79)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1021

Percentage of Americans believe that high achieving students should be recruited to become teachers

$\hat{p} = 76\% = 0.76$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96$

Putting the values, we get:

$0.76\pm 1.96(\sqrt{\dfrac{0.76(1-0.76)}{1021}})\\\\ = 0.76\pm 0.0261\\=(0.7339,0.7861)\\\approx (0.73,0.79)$

5 0

3 years ago

I need help with this question. Write the equation in standard form. Identify A,B, and C.

frutty [35]

$\frac{5}{2}x-9=8y\\
\frac{5}{2}x-8y=9\\\\
A=\frac{5}{2}\\
B=-8\\
C=9$

6 0

3 years ago

Number 18 if u are able to se

Tems11 [23]

I think it is 55 because 85-30 = 55

Hope this helps! :D

4 0

3 years ago