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Yanka [14]
2 years ago
15

What is f(3) if f(x) = 2x + 1?

Mathematics
2 answers:
RideAnS [48]2 years ago
4 0
Plug in 3 for x
f(3) = 2(3) + 1
f(3) = 6 + 1
Solution is 7
pychu [463]2 years ago
3 0

Answer:

f(3) = 7

Step-by-step explanation:

To evaluate f(3), substitute x = 3 into f(x), that is

f(3) = 2(3) + 1 = 6 + 1 = 7

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An art gallery sells paintings at 0.35 per square inch. if a painting is 2 feet 3 inches by 3 feet 5 inches. how much would the
Natalka [10]

Hello!

ANSWER

The painting would cost $387.45.

____________________________________________________________

EXPLANATION

2' 3" = 27"

3' 5" = 41"

Multiply the length by the width (in inches) of the painting.

27 * 41 = 1107

We now know that the area of the painting is 1107in.^{2} Next, multiply the cost per square inch (0.35) by the total amount of square inches (1107).

.35 * 1107 = 387.45



7 0
3 years ago
Jack was 10 years older than priscilla together their ages totaled 170 years what were their ages
Allisa [31]
Are there any answers to choose from?

So if Jack was 10 years older than Priscilla and their ages combined equals to 170. I believe Priscilla is 80 and Jack was 90 cause 90+80=170
5 0
3 years ago
Micah is twice as old as Richard. Richard is four times as old as Ken. Ken is five years old. How old is Micah?
irinina [24]

Answer:

the answer is 40

Step-by-step explanation:

micah is 40

6 0
3 years ago
By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such
zimovet [89]
Hello there.

<span>By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such water fixtures about how many gallons of water would the average American use in December 
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D about 2000 gallons
6 0
3 years ago
Find the volume of the cone of with a height of 6cm and a diameter of the base or 6cm
Ainat [17]

Answer:

The volume of cone v= 113.04 cm³.

Step-by-step explanation:

Formula used to find volume of cone is:

v= \pi * r^2 * \frac{h}{3}

where r is the radius and h is the height of cone.

In the given question we are given:

height h= 6 cm

diameter d= 6 cm

We know radius r = d/2 = 6/2 = 3 cm

so, volume will be:

v= \pi * 6^2 * \frac{3}{3}

v= \pi * 36

v=113.04

So, the volume of cone v= 113.04 cm³ given height h= 6cm and radius r= 3cm

7 0
3 years ago
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