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Vlada [557]
3 years ago
11

If f(x) = 2x + 1, then f(3) = ?

Mathematics
2 answers:
Dima020 [189]3 years ago
8 0

Answer:

D, 9

Step-by-step explanation:

F(x)=2^x+1

f(3)=2^3+1

f(3)=8+1

f(3)=9

Kay [80]3 years ago
8 0
It’s 28 because you are inputting 3 for x. 2^3 is 27, and then you add 1 so it would be 28.
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What is the equation of a circle centered at the origin with radius 20?
Colt1911 [192]
We know that
the equation of a circle is
(x-h)²+(y-k)²=r²
where 
(h,k)-----> is the center
r--------> is the radius

is the center is the point (0,0) and radius  r=20
then
(h,k) is (0,0)

(x-0)²+(y-0)²=20²---------> (x)²+(y)²=400


the answer is
the option D.)  x2 + y2 = 400
3 0
3 years ago
How many computers must the AB Computer Company sell to break even? Let x be the number of computers.
Eduardwww [97]

Answer:

The Company AB must sell 116 computers to break even

Step-by-step explanation:

we have

R(x)=1.5x -----> equation A

C(x)=145+\frac{1}{4}x ----> equation B

where

C is the cost function

R is the revenue function

x is the number of computers sold

we know that

Break even is when the cost is equal to the revenue

so

equate equation A and equation B

1.5x=145+\frac{1}{4}x

Solve for x

subtract 1/4x both sides

1.5x-\frac{1}{4}x=145

1.5x-0.25x=145

1.25x=145

Divide by 1.25 both sides

x=116

therefore

The Company AB must sell 116 computers to break even

7 0
4 years ago
Help needed plaese✌​
monitta

5x-3=2.5x+x solve this equation that I just gave you for X then plug it in to 2.5x and that will equal MN

7 0
3 years ago
A projectile was launched straight up from the ground with an initial velocity of 48 ft/s. The height of the projectile t second
alex41 [277]
Factor f(t) and you can identify the values of t for which the height is zero.
.. f(t) = -16t(t -3)

The projectile lands after 3 seconds in the air. (selection A)

8 0
4 years ago
2+8<br><br> PLSSS HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
romanna [79]

Answer:

10

Step-by-step explanation

2 + 8= 10

6 0
3 years ago
Read 2 more answers
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