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Y_Kistochka [10]
2 years ago
11

I don't know the answer

Mathematics
1 answer:
RUDIKE [14]2 years ago
6 0

Step-by-step explanation:

okay hold up a sec

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A scientist is interested in the effect of time spent with parents and number of hours
gladu [14]

Answer: If X = 5, z=<u>-3</u>

If X = 37, z= <u>3.4</u>

Step-by-step explanation:

We know that the formula to find the z-score for any random variable x is given by :-

z=\dfrac{x-\mu}{\sigma}

, where \mu = Population mean

\sigma = Population standard deviation.

As per given , we have

\mu=20\\\\\sigma=5

Then , the z-score for x =5

z=\dfrac{5-20}{5}=\dfrac{-15}{5}=-3

i.e. If X = 5, z=<u>-3</u>

When x =37,then z=\dfrac{37-20}{5}=\dfrac{17}{5}=3.4

i.e. If X = 37, z= <u>3.4</u>

7 0
2 years ago
Please help I was out this day and this assignment is late
sammy [17]

Answer:

10. ( 7x + 2 ) × ( 5x + 1 )

Step-by-step explanation:

1. 35x² + 10x + 7x + 2

2. 5x × ( 7x + 2 ) + 7x + 2

3. ( 7x + 2 ) × ( 5x + 1 )

4 0
3 years ago
Read 2 more answers
Each second for 4 seconds, an elevator descends 10 feet. Find the total change in elevation.
NISA [10]
(4 sec) * (-10 ft/sec) = -40 ft.
5 0
3 years ago
A bag has 8 number tiles numbered one through eight. You draw a number tile, replace the tile and draw a second tile. What is th
solmaris [256]
The answer is D because they take a tile out which makes it 7 tiles in the bag but then they put it back which makes the bag have 8 tiles in it again.
5 0
3 years ago
Read 2 more answers
100 POINTS IF U GET THIS RIGHT!
Luda [366]

Answer:

y-intercept: 5/3

Step-by-step explanation:

Our equation: y = mx + b

Given equation: y = -8/3 + 5/3

=> Now, let's compare.

=> y = mx + b = y = -8/3 + 5/3

=> we can tell that the y-intercept is b, which is 5/3.

Hoped this helped.

7 0
2 years ago
Read 2 more answers
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