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IgorLugansk [536]
3 years ago
13

20 points please help.

Mathematics
1 answer:
astraxan [27]3 years ago
7 0

Answer:
The student's score closest to 91 percentile.

Step-by-step explanation:

Since the scores on the standardized test are approximately normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = test scores.

µ = mean score

σ = standard deviation

From the information given,

µ = 480

σ = 90

If a student has a score of 600, then x = 600

For x = 600,

z = (600 - 480)/90 = 1.33

Looking at the normal distribution table, the probability corresponding to the z score is 0.91

the student's score closest to 91 percentile.

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A logarithmic function is an appropriate model because, for evenly spaced y-values, the ___ of consecutive x-values is constant.
zhenek [66]

Answer:

Ratio.

Step-by-step explanation:

A logarithmic function is an appropriate model because, for evenly spaced y-values, the <u>ratio</u> of consecutive x-values is constant. This is the correct answer to your question.

Hope this helps!!!

Kyle.

7 0
3 years ago
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What is the vertex of the parabola given by the equation y = x2 + 4? A. (2, 8) B. (-2, 8) C. (0, 4) D. (4, 0) E. (0, 0)
stira [4]

Vertex form is

y = a(x-p)^2 + q

We're practically in vertex form,

y = 1(x - 0)^2 + 4

That's a vertex at x=0, y=4, (0,4)

choice C

5 0
3 years ago
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I will give Brainlist if solved fast.
True [87]
Hi I did a plug and play because I don’t know how else to do it.
So I started adding numbers till the tarts equal 20 and then the cherries in the tarts equals 89.


11tarts times* 5cherries is 55 black cherries
7tarts times * 4 cherries is 28 red cherries
2tarts Times* 3 cherries is 6 white cherries
20 tarts and 89 cherries

So with the information☝️in the constraints that makes the statement true above... There are 9 more black tarts on tray than white.

6 0
2 years ago
Help with this please
Alex_Xolod [135]
<h2>Given:-</h2>

y = 2x + 50

x = 5

So,

y = 2(5) + 50

y = 10 + 50

y = 60

Hence, option B, y = 60, is correct.

<h2>Hope it helps...</h2>
3 0
3 years ago
Which is equivalent to
timofeeve [1]

Answer:

-12

Step-by-step explanation:

-36 divided by 3 = -12

4 0
4 years ago
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