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mojhsa [17]
4 years ago
5

The time it takes to complete a test is

Mathematics
1 answer:
astra-53 [7]4 years ago
8 0

Answer:

<h2>The z-score is -3.08, approximately.</h2>

Step-by-step explanation:

The z-score is defined

Z=\frac{x - \mu}{\sigma}

Where \mu is the mean, \sigma is the standard deviation and x the data value.

In this case, we have

x=8\\\mu = 45\\\sigma=12

Replacing values, we have

Z=\frac{8-45}{12}=\frac{-37}{12} \approx -3.08

Therefore, the z-score is -3.08, approximately.

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Which of these triangle pairs can be mapped to each other using two reflections?
UkoKoshka [18]

Answer: The correct option is figure (1).

Explanation:

Reason for correct option:

The figure (1) shows the reflection across the side XY followed by reflection across the side YT.

When we reflect the triangle XYZ across the side XY we get the triangle XYT as shown in below figure.

After that we reflect the triangle XYT across the side YT and we get the triangle PYT.

Therefore, only figure 1 shows the triangle pairs can be mapped to each other using two reflections.

Reason for incorrect options:

The figure (2) shows the rotation of 180 degree along the point y.

The figure (3) shows the reflection across the side XY followed by the translation.

The figure (4) shows the reflection, followed by rotation , followed by translation.

8 0
3 years ago
Read 2 more answers
The ratio of Nicole’s money to Sid’s money is 3:11. If Nicole has $33, how much money do Sid and Nicole have together? Show your
ddd [48]

Answer:


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Please help thx a bunch
kirza4 [7]
A.
2/3A=-24
time both sides by 3/2
A=-72/2
A=-36

B.
20=-B/0.2
times both sides by 0.2
4=-B
times -1
-4=B


distance between 2 points x and y is |x-y|

so
distance between A and B is distance between -4 and -72 or
|-72-(-4)|=|-72+4|=|-68|=68
the distance is 68
4 0
3 years ago
Help me!!!!!!!!!!!!!!!!!!!!!
marissa [1.9K]

Answer:

\frac{7}{3} and \:  \frac{8}{3}

Step-by-step explanation:

so let's start with what we know:

2 \frac{1}{3}  \times 2 \frac{2}{3}

now to get it into non mixxed numbers:

2*3 = 6

6+1

_____

\frac{7}{3}

2*3=6

6+2=8

______

\frac{8}{3}

now to cross mutiply them:

7*3

7 0
3 years ago
Givien g(x) = -3x-5 , find g(4)
Westkost [7]

Answer:

g(4) = -17

Step-by-step explanation:

Hello!

Substitute 4 for x in the equation.

<h3>Evaluate</h3>
  • g(x) = -3x - 5
  • g(4) = -3(4) - 5
  • g(4) = -12 - 5
  • g(4) = -17

g(4) is -17.

7 0
2 years ago
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