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choli [55]
3 years ago
9

Pls do all three:) I will mark brainliest!

Mathematics
1 answer:
asambeis [7]3 years ago
3 0

Answer:

1. C

2. D

3. B

Step-by-step explanation:

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Find the value for the variable expression p + 5 when p = 2.
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Replace all the variables with their values. In this case, we know the value of the variable p.

Now the expressions p + 5 becomes 2 + 5.

2 + 5 = 7

So, C. 7 is the answer.
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4 years ago
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f a piece of ribbon is 6 and 1 over 4. feet long, how long is it in inches? 25 inches 72 inches 75 inches 84 inches
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I am trying to solve this problem 2x-8y=10
Ludmilka [50]

Answer:

x=25 y=5

Step-by-step explanation:

x=25

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4 years ago
WORTH 1O POINTS!!
LenKa [72]

Answer:

okay so.

Step-by-step explanation:

1. they're the same.

2. theyre also the same. simplify them both and u get 3/4.

3. not the same.

4. not the same. can't be simplified.

5. not sure someone else can try

4 0
3 years ago
Based on a study of population projections for 2000 to​ 2050, the projected population of a group of people​ (in millions) can b
Olegator [25]

Answer:

(a) 0.107 million per year

(b) 0.114 million per year

Step-by-step explanation:

A(t) = 11.19(1.009)^t

(a) The average rate of change between 2000 and 2014 is determined by dividing the difference in the populations in the two years by the number of years. In the year 2000, t=0 and in 2014, t=14. Mathematically,

\text{Rate}=\dfrac{A(2014) - A(2000)}{2014-2000}=\dfrac{11.19(1.009)^14-11.19(1.009)^0} {14}

A(0)=\dfrac{12.69-11.19}{14}=\dfrac{1.5}{14}=0.107

(b) The instantaneous rate of change is determined by finding the differential derivative at that year.

The result of differentiating functions of the firm y=a^x (where a is a constant) is \dfrac{dy}{dx}=a^x\ln a. Let's use in this in finding the derivative of A(t).

A\prime(t) = \dfrac{A}{t}=11.19\cdot1.009^t\ln1.009

In the year 2014, t=14.

A\prime(14) =11.19\cdot1.009^14\ln1.009=0.114

6 0
3 years ago
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