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2 years ago

Please help me with question 2

Mathematics

2 answers:

11111nata11111 [884]2 years ago

7 0

Answer:

A Step-by-step explanation:

Hope it helps

Mandarinka [93]2 years ago

7 0

It’s D. X can be repeated but Y can’t. Hope this helped!

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Solve for x 1/2 x=20 1/40 1/10 10 40

lana [24]

1/2 x = 20
x = 2 x 20 = 40

3 0

2 years ago

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

2 years ago

Need help on 7,8,9,10,11 and 12 DUE TOMORROW

Dennis_Churaev [7]

7) (12 + 6)/(2 +4)
(18)/(6) = 3

8) (42 - 24)/6
(18)/6 = 3

9) (9 + 16) - (2 x 4)
25 - 8 = 17

10) 60 - (3 + 2) x 5
60 - 5 x 5
60 - 25 = 35

11) 18 + (9/3)
18 + 3 = 21

12) 5 x (2 + 4 + 3)
5 x (9) = 45

hope this helps

3 0

2 years ago

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How do you answer this step by step

leonid [27]

X/3 +4 = 5+x/6
6(x/3 +4 = 5+x/6)
2x+ 24 = 30 +x
x= 6

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2 years ago

At Joe’s Burger House, the buzzer for hamburgers rings every 5 minutes and the buzzer for french fries rings every 3 minutes. Fr

olganol [36]

Answer:

Step-by-step explanation:

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2 years ago

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