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Bezzdna [24]
3 years ago
5

Mrs. Jackson gives the table below to her students. In order for the function to be linear, what must a be and why? a = 22 becau

se the rate of change is 1. a = 20 because the rate of change is 3. a = 22 because the rate of change is –1. a = 20 because the rate of change is –3.

Mathematics
2 answers:
Wittaler [7]3 years ago
4 0

Answer:

d

Step-by-step explanation:

evablogger [386]3 years ago
3 0

Answer:

It's D (a = 20 because the rate of change is –3.)

Step-by-step explanation:

I did the test and that was the correct answer

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VLD [36.1K]

Answer:

It should be RGB that's a L

Step-by-step explanation:

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2 years ago
A 15-foot log is split into 2 pieces. How long are the pieces if the longest piece is 1.5ft shorter than two of the shorter piec
Allisa [31]

Answer:

8.25 ft & 6.75 ft

Step-by-step explanation:

So we know it's split into two pieces, right? So normally that would be 7.5 ft each. But one is 1.5 ft longer than the other. So as a result, I divided that by 2 to add 0.75 ft to piece one and subtract 0.75 ft from piece two's length. So, the longer piece is 8.25 ft, and the shorter one is 6.75 ft.

8 0
3 years ago
Read 2 more answers
The half-life of radium-226 is 1600 years. Suppose we have a 27-mg sample.
slega [8]

A function m(t)= m₀e^(-rt) that models the mass remaining after t years is; m(t) = 27e^(-0.00043t)

The amount of sample that will remain after 4000 years is; 4.8357 mg

The number of years that it will take for only 17 mg of the sample to remain is;  1076 years

<h3>How to solve exponential decay function?</h3>

A) Using the model for radioactive decay;

m(t)= m₀e^(-rt)

where;

m₀ is initial mass

r is rate of growth

t is time

Thus, we are given;

m₀ = 27 mg

r = (In 2)/1600 = -0.00043 which shows a decrease by 0.00043

and so we have;

m(t) = 27e^(-0.00043t)

c) The amount that will remain after 4000 years is;

m(4000) = 27e^(-0.00043 * 4000)

m(4000) = 27 * 0.1791

m(4000) = 4.8357 mg

d) For 17 mg to remain;

17 = 27e^(-0.00043 * t)

17/27 = e^(-0.00043 * t)

In(17/27) = -0.00043 * t

-0.4626/-0.00043 = t

t = 1076 years

Read more about Exponential decay function at; brainly.com/question/27822382

#SPJ1

5 0
1 year ago
I’ll give brainliest
Harrizon [31]

Answer:

y = 7x - 5

Step-by-step explanation:

\frac{1}{2} (2y + 10) = 7x \\  \frac{2y}{2}  +  \frac{10}{2}  = 7x \\ y + 5 = 7x \\ y = 7x - 5

7 0
3 years ago
Ruben decides to leave a 24% tip after eating dinner at Sun Bistro. If the bill is $23.35, how much should he pay? Round to the
Igoryamba

Answer:

$3.50

Step-by-step explanation:

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3 years ago
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