MATHEMATICS COLLEGE

What is the equation of the line? Y= 1/2x + 2

Y= 2x + 2

Y= 2x - 4

Y = 1/2x - 4
What is the equation of the line? Y= 1/2x + - 1

Answers

Answer 1
Answer:

Answer:

y=1/2x+2

Step-by-step explanation:

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Q # 8 please solve the question
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Which choice could be modeled by a linear function? A. The amount, y, of radioactive material remaining after x years when decay occurs at rate 30% each year.

B. The amount of money, y, In an account after x years earning 4% interest compounded annually.

C. The height, y, of a ball after bouncing x times, if each bounce reaches 2/3 the previous height.

D. The monthly cost, y, to use a cell phone for x minutes at a rate of 4 cents per minute.

Answers

Final answer:

The monthly cost, y, to use a cell phone for x minutes at a rate of 4 cents per minute can be modeled by a linearfunction. This is because the cost increases at a constant rate with the number of minutes used. In contrast, options A, B, and C involve non-constant rates of change.

Explanation:

The answer is D. The monthly cost, y, to use a cell phone for x minutes at a rate of 4 cents per minute. This is a linear function because it describes a constant rate of change, as the cost changes linearly with the number of minutes used. Each additional minute costs the same amount: 4 cents. So, if we plot the minute (x) versus cost (y), we would get a straight line. This is different from the other options where the rate of change is not constant. For instance, options A, B, and C describe scenarios with exponential decay or growth.

Learn more about Linear Function here:

brainly.com/question/40461731

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Answer:

D

Step-by-step explanation:

D is linear because it increases the same amount each time

Someone hurry and help plsss

Answers

Answer:

-3 is the answer for the question

You buy six pens for $2.99 each, and sales tax is 10%. How much change should you receive from a clerk if you give her a $20 bill?

Answers

Answer:

$2.06

Step-by-step explanation:

$2.99 x 6 = $17.94

$20.00 - $17.94 = $2.06

Hope this helps

Answer: $0.26

Step-by-step explanation:

Cost of 6 pens

= 2.99 x 6

= 17.94

Add sales tax at 10%,

= 17.94 x 1.1

= 19.74

Change due to me

= 20 - 19.74

= 0.26

I’ll give points and brainalist for correct answer (:

Answers

The answer is C your welcome:)

In Exercise, solve the equation.
ex– 1 = 9

Answers

Answer:

x = ln 10

Step-by-step explanation:

You meant e^x - 1 = 9.  Let's isolate e^x, by adding 1 to both sides.  We get:

e^x = 10

Now make use of the property ln a = b  <=> a = e^b

Then e^x = 10 becomes  

x = ln 10

The half-life of a radioactive substance is 200 years. There are 8000 grams of the substance initially. How many grams of the substance are left after 300 years?

Answers

Answer:

There are 2,000 grams left after 300 years.

Step-by-step explanation:

Giving the following information:

The half-life of a radioactive substance is 200 years. There are 8000 grams of the substance initially.

First, we need to calculate the reduction of the substance each year:

Yearly reduction= 8,000/400= 20 grams per year

Now, for 300 years:

300 year reduction= 20*300= 6,000

There are 2,000 grams left after 300 years.
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