2 years ago

Find the value of f(7) if f(x) = x^2 - 8x + 2

Mathematics

1 answer:

S_A_V [24]2 years ago

5 0

Answer:

-5

Step-by-step explanation:

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Apples are 94 cents a pound, and pears are $1.22 a pound. write an expression for the total cost, in dollars, of a pounds of app

sineoko [7]

1 apple: 94 cents = 0.94 dollars
a apples: 0.94 ×a= 0.94a
p pears: 1.22× p= 1.22p
total: 1.22p + 0.94a
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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Find the indicated term of the given arithmetic sequence. a1 = 115, d = 8, n = 14

olya-2409 [2.1K]

I took the same test and I put the answer D. 1487 and I got it wrong. The correct answer was
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2 years ago

Find a third number so that three numbers form a right triangle.<br><br>9,41

expeople1 [14]

Answer:

Step-by-step explanation:

a^2+b^2=c^2

therefore c^2-b^2=a^2

41x41=1681

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2 years ago

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4 x plus 8 y equals 40, when y equals 0.8?

Over [174]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{x = 8.4}}}}}$

Step-by-step explanation:

Given, y = 0.8

To find : value of x

$\sf{4x + 8y = 40}$

plug the value of y

$\longrightarrow{ \sf{4x + 8 \times 0.8 = 40}}$

Multiply the numbers: 8 and 0.8

$\longrightarrow{ \sf{4x + 6.4 = 40}}$

Move 6.4 to right hand side and change it's sign

$\longrightarrow{ \sf{4x = 40 - 6.4}}$

Subtract 6.4 from 40

$\longrightarrow{ \sf{4x = 33.6}}$

Divide both sides by 4

$\longrightarrow{ \sf{ \frac{4x}{4} = \frac{33.6}{4} }}$

Calculate

$\longrightarrow{ \sf{x = 8.4}}$

Hope I helped!

Best regards ! :D

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3 years ago