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Ivahew [28]
3 years ago
9

What is f(5) for f(x)=4x^2-5x+2? A)-24 B)77 C)127 D)150

Mathematics
2 answers:
marishachu [46]3 years ago
6 0

Answer:

B. 77

Step-by-step explanation:

Just change all the "x" with 5.

So, it'd be like

f(x) = 4(5)^{2} - 5(5) + 2

f(x) = 77

Stells [14]3 years ago
5 0

Answer:

B)77

Step-by-step explanation:

f(x)=4x^2-5x+2

Let x=5

f(5) = 4(5)^2 -5(5) +2

     = 4*25 -25 +2

     =100 -25+2

     =75+2

     =77

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3 years ago
Melissa buys 2 1/2 pounds of salmon and 1 1/4 pounds of swordfish. She pays a total of $31.25, and the swordfish cost $.20 per p
julsineya [31]

Answer:

The combined cost of 1 pound of salmon and 1 pound of swordfish is $16.66

Step-by-step explanation:

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Now, the Amount of salmon purchased  = 2 1/2 pounds

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Cost of buying 2.5 pounds = 2.5 x ( 1 pound cost)

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Also, the Amount of swordfish purchased  = 1 1/4 pounds

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Now, the combined cost paid  = $ 31.25

⇒Cost of buying (2.5 pounds salmon  +  1.25 pounds swordfish) = $ 31.25

or, 2.5 m +   1.25 m - 0.25  = 31.35       (from (1) and (2))

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6 0
3 years ago
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vivado [14]

Answer:

KL ≈ 1.94

Step-by-step explanation:

Using the cosine ratio in the right triangle

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3 years ago
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Anvisha [2.4K]

Answer:

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