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marissa [1.9K]
3 years ago
5

A multiple choice test has 7 questions each of which has 4 possible answers, only one of which

Mathematics
1 answer:
Yuki888 [10]3 years ago
6 0
The answer to this question is 0.311
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Solve for x: |2x + 12| = 18
Mashcka [7]
2x + 12 = 18
18 - 12 = 6
2x = 6
x = 3
7 0
3 years ago
Read 2 more answers
The length of a rectangle is 9 cm more then half the width. Find the length of the perimeter is 60cm
stira [4]

length = 1/2 w+9

perimeter= 60 =2(l+w)  

substitute in for length

60 = 2(1/2 w +9 +w)  

60 = 2 (3/2 w +9)

distribute

60 = 3w + 18

subtract 18 from each side

42 = 3w

divide by 3 on each side

14 = w

length = 1/2 w + 9

length = 1/2 (14) +9

              7 + 9

16cm

7 0
3 years ago
Which word phrases represent the variable expression 7d? Choose all answers that are correct. A. the product of 7 and a number B
amm1812
A and D are correct.
8 0
3 years ago
Read 2 more answers
Someone please help me with this I need the answers so I will be prepared for the test
3241004551 [841]
I can't see the pages to be able to help you sorry
6 0
3 years ago
Response Question
Paha777 [63]

Answer:

The right solution is "3.29, 3.57".

Step-by-step explanation:

Seems that the given problem is incomplete. Below is the attachment of the complete and appropriate query.

<u>The given values are</u>:

Randomly selected adults,

n = 105

Mean,

\bar{x} = 3.42

Standard deviation,

s = 0.75

Now,

At 95% confidence level if given by,

=  \bar{x} \ \pm \ Z_{\frac{\alpha}{2} }\times \frac{s}{\sqrt{n} }

On putting the given values, we get

=  3.42 \ \pm \ Z_{\frac{0.05}{2} }\times \frac{0.75}{\sqrt{105} }

=  3.42 \ \pm \ 1.96\times 0.073

=  3.42 \ \pm \ 0.143

=  3.29, 3.57

3 0
2 years ago
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