3 years ago

If f(x) = 7x2 - 4x, what is the value of f(2)? F -8 J 17 G 2 K 20 H 6

Mathematics

1 answer:

kow [346]3 years ago

4 0

Answer:

K 20

Step-by-step explanation:

f(x) = 7x2 - 4x

f (2) = 7 (2)^2 - 4(2)

= 28 - 8

= 20

Since they replaced the x inside f(x) with 2, just do that the same to the right side, change all x into 2

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IS THE ANSWER C 162 ?? someone check me please this is triangular prism correct??? I did 1/2 × 6×3×18 but someone else got 243 a

oee [108]

Answer:

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Step-by-step explanation:

formula for triangular prism: 1/2*b*h1*h2

substitute the values into the formula:

6*3*18=324

324/2=162

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4 0

3 years ago

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ki77a [65]

Answer:

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Step-by-step explanation:

set up a proportion:

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Step-by-step explanation:

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3 years ago

Round the nearest hundredth. 53.789

hammer [34]

Answer: 53.79

Step-by-step explanation:

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3 years ago

Derek sees that a 24 foot flagpole casts a 10 foot shadow. At the same time of day, if a nearby tree casts

Lunna [17]

Answer:

60 ft.

Step-by-step explanation:

We can solve this problem with a simple proportion:

24 / 10 = h / 25

10h = 24 * 25

600 = 10h

60 ft. = h

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3 years ago