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3 years ago

Does anyone know this answer

Mathematics

1 answer:

4vir4ik [10]3 years ago

5 0

0 is the answer of questions

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SAT math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 114.

nadezda [96]

Hey there mate :)

Analysis :

$401 = 515 - 114 = u - 6$

And

$173 = 515 - 3.114 = u - 36$

$= \frac{p(u - 36 < u < u + 36) - p(u - 6 < u < u + 6)}{2}$

$= \frac{99.73percent - 68.21percent}{2}$

$= \frac{31.46percent}{2}$

$= {15.73percent}$

Then, calculating,

$u - 26 = 515 - 2 \times 114 = 287$

And

$u + 26 = 515 + 2 \times 114 = 743$

Then,

$The \: Range = (287,743)$

Final Answers :-

15.73 %

(287,743)

~Benjemin360

3 0

3 years ago

Write a real-world situation that could be modeled by the equation 500 + 250x = 300x

andre [41]

Jjxiejwijsncjdjjeje wjdjisnznakka

8 0

3 years ago

PLZ NEED HELP ASAP!!!

madam [21]

Answer:

C and D

Step-by-step explanation:

I had this same problem on my quiz

4 0

3 years ago

Given the function h(x) = 3(5)x, Section A is from x = 0 to x = 1 and Section B is from x = 2 to x = 3.

otez555 [7]

We can write the function in terms of y rather than h(x) so that:

y = 3 (5)^x

A. The rate of change is simply calculated as:

r = (y2 – y1) / (x2 – x1) where r stands for rate

Section A:

rA = [3 (5)^1 – 3 (5)^0] / (1 – 0)

rA = 12

Section B:

rB = [3 (5)^3 – 3 (5)^2] / (3 – 2)

rB = 300

B. We take the ratio of rB / rA:

rB/rA = 300 / 12

rB/rA = 25

So we see that the rate of change of section B is 25 times greater than A

7 0

3 years ago

Help Asap Please!! mark as Brainliest

nekit [7.7K]

1. $\frac{1}{2}$ (10m - 14) + 9 = 12 1. Given

2. 5m - 7 + 9 = 12 2. Distributive Property

3. 5m + 2 = 12 3. Simplify (added like terms)

4. 5m = 10 4. Subtraction Property of Equality

5. m = 2 5. Division Property of Equality

3 0

3 years ago

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Does anyone know this answer​

Does anyone know this answer