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GenaCL600 [577]
3 years ago
5

I don't know to solve the surface area of the prism

Mathematics
2 answers:
Allushta [10]3 years ago
7 0
12.4 is the surface area, why? because 3 x 1 is 3, 2 x 2.2 is 4.4 for the triangles because the total amount of what you get for a triangle just split it in two so, and for the bigger rectangle 2 x 3 is 5 so add all of that together so 3 + 4.4 + 5

I beg you to mark me a brainiest please
Also I hope that helped
scoray [572]3 years ago
6 0
(1ft x 1ft) + (3ft x 3ft) = 7sqft
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Someone help me with this if you know the answer swipe up
zhuklara [117]
The answers would be A & E, or, 90° clockwise and also 270° counterclockwise:)
5 0
3 years ago
Fewer young people are driving. In 1995, 63.9% of people under years old who were eligible had a driver's license. Bloomberg rep
nika2105 [10]

Answer:

A. 0.0272

B. 0.0278

C. No

Step-by-step explanation:

a. Calculation for the margin of error and the interval estimate of the number of eligible people who had a driver’s license in 1995u

First step is to calculate the Standard error using this formula

Standard error(SE)= √(pcap * (1 - pcap)/n)

Where,

pcap represent sample proportion = 0.639

n represent sample size = 1200

Let plug in the formula

Standard error (SE)= √(0.639 * (1 - 0.639)/1200)

Standard error(SE)= 0.0139

Second step is to find Zc using this formula

Zc = Z(α/2)

Where,

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

Zc = Z(α/2) = 1.96

Now let calculate the Margin of Error using this formula

Margin of Error= zc * SE

Let plug in the formula

Margin of Error = 1.96 * 0.0139

Margin of Error = 0.0272

Therefore the Margin of Error is 0.0272

b. Calculation for the margin of error and the interval estimate of the number of eligible people who had a driver’s license in 2016

First step is to calculate the Standard error using this formula

Standard error(SE)= √(pcap * (1 - pcap)/n)

Where,

pcap represent sample proportion = 0.417

n represent sample size = 1200

Let plug in the formula

Standard error (SE)= √(0.417 * (1 - 0.417)/1200)

Standard error(SE)= 0.0142

Second step is to find Zc using this formula

Zc = Z(α/2)

Where,

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

Zc = Z(α/2) = 1.96

Now let calculate the Margin of Error using this formula

Margin of Error= zc * SE

Let plug in the formula

Margin of Error = 1.96 * 0.0142

Margin of Error = 0.0278

Therefore the Margin of Error is 0.0278

c. Based on the above calculation for both (a) and (b) the MARGIN OF ERROR are NOT the same reason been that (a) Margin of Error is 0.0272 while (b) Margin of Error is 0.0278 which simply shows that the proportion in parts (a) and are different.

5 0
3 years ago
HELP ME LOOK AT THE PHOTO
Assoli18 [71]

Answer:

The answer to the question provided is 7.

Step-by-step explanation:

7x + 9 = 8x + 2 \\  \frac{ - 8x \:  \:  \:  \:  =  - 8x}{ - 1x + 9 = 2 }  \\  \frac{ \:  \:  \:  \:  \:  \:  \:  \:  - 9 =  - 9}{ \frac{ - 1x}{ - 1} =  \frac{ - 7}{ - 1}  }  \\ x = 7

[I apologize if this isn't the answer]

6 0
3 years ago
You invest $500 in an account with an annual interest rate of 1.1%, compounded continuously. How much money is in the account af
posledela
Idk what is the answers so i see if i got then right
8 0
3 years ago
What two sums are equal to 3 3/4? Pls show work.
Rina8888 [55]
3 + 3/4 = 3 3/4

Ans: 3 and 3/4

2 + 1 3/4 = 3 3/4

Ans: 2 and 1 3/4
5 0
3 years ago
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