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Pachacha [2.7K]
3 years ago
14

What is f[g(7)] for the following functions?

Mathematics
2 answers:
Maksim231197 [3]3 years ago
8 0

Answer:

C

Step-by-step explanation:

To evaluate f(g(7)), substitute x = 7 into g(x), then substitute the result into f(x)

g(7) = (2 × 7) - 5 = 14 - 5 = 9, then

f(9) = 3(9)² - 4 = 243 - 4 = 239 → C

posledela3 years ago
6 0

Answer:

the answer to the equation is C

Step-by-step explanation:

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zimovet [89]
You will get 20 tickets.<span />
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3 years ago
A cube shaped terrarium has a volume of 27/64 cubic feet. What is the length of its sides?
Dafna1 [17]
A cube is a 3 dimensional object with 6 square faces. All its sides are the same length, there fore the volume is equal to s^3 where s is the side length.

s^3 =  \frac{27}{64}

To solve for s, take the cube root of both sides.

\sqrt[3]{s^3}= \sqrt[3]{ \frac{27}{64} }

s= \frac{3}{4} feet
8 0
3 years ago
You bought a magazine for $3 and two notepads. You spent a total of $13. How much did each notepad cost? *
sweet-ann [11.9K]

Answer:

$5

Step-by-step explanation:

We want to find the cost of a notepad considering a magazine costs $3 and we buy 2 notepads and the total cost of the magazine and the 2 notepads is $13 so we can set up an equation to represent this situation. Let 'n' be notepads and that's the value we are solving for so,

⇒ Form the equation

→ 2n + 3 = 13

⇒ Minus 3 from both sides to isolate 2n

→ 2n = 10

⇒ Divide both sides by 2 to find the cost of one notepad

→ n = 5

The cost of one notepad is $5 considering that a magazine cost's $3 and two notepads and total is $13.

4 0
3 years ago
A car the normally sells for 20,000 is on sale for 18,000 what is the discount rate?
balandron [24]
(20,000-18,000)÷20,000=0.1=10%
6 0
4 years ago
A giraffe can travel 800 feet in 20 seconds. Write a direct variation equation for the distance traveled any time | Please expla
Diano4ka-milaya [45]
The direct variation equation is:
d=kt
where d is the distance that the giraffe travels
k is the constant of variation
and t is time
Now we are told that the giraffe can travel 800 ft in 20 seconds, so we can solve for the constant of variation (k)
800=k(20) divide both sides by 20
k=40-------------and the units are ft per sec
So now we can write
d=40t
ck
d=40t
800ft=40*20 ft
800 ft= 800 ft

Hope this helps!
8 0
3 years ago
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