2 years ago

Please help me on the top one

Mathematics

1 answer:

ANTONII [103]2 years ago

7 0

Numcre sorry I think I spelled it wrong

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Eleanor scores 680 on the mathematics part of the SAT. The distribution of SAT math scores in recent years has been Normal with

Katen [24]

Answer:

Elanor's standardized score is 1.19
Gerald's standardized score is 0.72
Elanor has higher score

Step-by-step explanation:

To compare Elanor's and Gerald's math scores, we need to standardize them and calculate their z-scores.

z score can be calculated using the formula

z= $\frac{X-M}{s}$ where

X is the student's score

M is the mean score of the exam

s is the standard deviation of the exam

Elanor's standardized score is:

z(e) = $\frac{680-554}{106}$ ≈ 1.19

Gerald's standardized score is:

z(g)= $\frac{27-24.7}{3.2}$ ≈ 0.72

Since z(e) > z(g), Elanor has higher score

6 0

3 years ago

Find the coordinates of the point 3/10 of the way from A to B.

meriva

The horizontal distance from A to the point = 3/10 * 14 = 4.2, so the c coordinate of the point is -3+ 4.2
= 1.2.
Vertical distance = 3/10 * 12 = 3.6
So the y coordinate = -5+ 3.6
= -1.4.
Answer is (1.2, -1.4)

4 0

1 year ago

What is the volume of a square pyramid if the perimeter of the base is 44 in and the height is 19 in.? Round to the nearest tent

Olin [163]

Answer:

766.3

Step-by-step explanation:

8 0

3 years ago

Which is factorial using integers? a) y+25 b) y^2-25 c) y^2+25 d) y-10 e) y^2+10

Masteriza [31]

Answer:

i feel like its A or D i could be wrong but i believe its one of the two

6 0

2 years ago

1. Given f (x) = -2x + 1, find f(-1)

AleksandrR [38]

Answer:

Step-by-step explanation:

plug in (-1) for x

-2(-1) + 1

2 + 1

4 0

3 years ago

Read 2 more answers