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sdas [7]
3 years ago
12

A young girl standing on a cliff is throwing stones up into the air so that they land in the ocean below. The height h in meters

of each stone above the ocean is realted to the time t in seconds after it has been thrown by the function h=-2t^2+2t+40. What is the maximum height reached by each stone?
A. 40.5m
B. 5m
C. 0.5m
D. 40 m

PLEASE HELP ME IM GONNA FAIL THIS TEST!!!!
Mathematics
2 answers:
lukranit [14]3 years ago
7 0
A



Shhhhh tacos baby brunch
SVETLANKA909090 [29]3 years ago
3 0

Answer:

the answer is A

Step-by-step explanation:

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G(x) = 1/3 * (2/9)^x. Does the function model growth or decay?
ElenaW [278]
The function models Exponential Decay due to the fact that as

x -> infinity, y-> 0

4 0
3 years ago
Conrad drew 2 angles. Three times the measure of angle 1 is 30° more than 5 times the measure of angle 2. The sum of twice the m
ad-work [718]
Let x= measure of angle 1
Let y= measure of angle 2

This is solving a system of equations

3x=30+ 5y which can also be written

3x-5y=30, and

2x+2y=180
There are a few ways to solve this, like solving for x in one of the equations and plugging it in for x in the other equation, but here is another way:
2(3x-5y)=2*30
3(2x+2y)= 3*180

6x-10y=60
6x+6y=540, and now subtract to get rid of x
0-16y=-480
Y=30
Plug it back in to either equation and you get x=60

3 0
3 years ago
the difference between two numbers is 9. three times the smaller is equal to twice the larger. what are the numbers?
Sergio039 [100]

Answer: 27 and 18

Step-by-step explanation:

x - y = 9  → x = 9 + y

3y = 2x

3y = 2(9 + y)

3y = 18 + 2y

3y - 2y = 18

y = 18

2x = 3(18)

2x = 54

x = 27

x - y = 9

27 - 18 = 9

9 = 9

4 0
3 years ago
A(n) _____ is a testable statement about a relationship between two variables.
Monica [59]

Answer:

d. hypothesis

Step-by-step explanation:

According to all the scientific studies that are created or developed every day, Scientists call what is described in the question a "hypothesis". This is defined as a proposed explanation for a specific phenomenon. The hypothesis is the base for creating a testable experiment that proves the relationship between two variables.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
3 years ago
If x equals 7. What is 3x-47
miskamm [114]

Answer: x = -26

Step-by-step explanation:

3x-47

substitute x with 7: 3(7)-47

3(7) = 21 -47 = -26

7 0
3 years ago
Read 2 more answers
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