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Strike441 [17]
3 years ago
5

Please help with these questions. 20 points if you can solve them with good explanations.​

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

Work shown below!

Step-by-step explanation:

h(x) = -50x + 450

This is a linear function because it is the form y = mx + b

Graph 2 and scenario A and Table 3

g(x) = 4^x

It is a growth in the graph because the slope is positive

Graph 1 and scenario C and Table 1

f(x) = -16x^2 + 1900

It is a decay in the graph because the slope is negative

Graph 3 and scenario B and Table 2

Alexeev081 [22]3 years ago
3 0

9514 1404 393

Answer:

  a) graph 2, table 3

  b) graph 3, table 2

  c) graph 1, table 1

Step-by-step explanation:

a) "At a constant rate" means any graph and table will be a linear function. Only graph 2 is a straight line (linear). Only table 3 matches graph 2.

__

b) As the wrench drops, its height will be decreasing. Only graph 3 is a decreasing function (of the two remaining). Only table 2 matches graph 3.

__

c) Table 1 and graph 1 are the only remaining choices. Happily, they match each other and the scenario.

_____

<em>Additional comment</em>

You can match the tables to the graphs simply by looking at the y-value for x=0.

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Solve for the indicated variable.
tia_tia [17]

Answer:

(A  - pi r^2)/ 2 pi r=  h

Step-by-step explanation:

A = pi r^2 + 2 pi rh

First subtract pi r^2 from each side

A  - pi r^2= pi r^2 + 2 pi rh - pi r^2

A  - pi r^2=  2 pi rh

Now divide each side by 2pi r

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8 0
3 years ago
You have decided to cash in all of the coins you have been saving for the summer. In total you have $7.20. You only have dimes a
muminat

Answer:

The number of quarters in total = 16 quarters

The number dimes = 32 dimes

Step-by-step explanation:

The given information are;

The total amount of money in held = $7.20

The denomination of the money held = Dimes and quarters

The number dimes = 2 × The number of quarters

Given that a dime = 10 cents = $0.1

A dollar = 25 cents = $0.25

Let the number of quarters in the sum of money = X

Therefore, we have;

X × $0.25 + 2 × X × $0.1 = $7.20

X × $0.25 + X × $0.2 = $7.20

X × $0.45 = $7.20

X = $7.20/$0.45 = 16

Therefore, the number of quarters = 16

The number of quarters in total = 16 quarters

The number dimes = 2 × The number of quarters = 2 × 16 = 32 dimes

The number dimes = 32 dimes.

8 0
3 years ago
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