2 years ago

Which expression has the greatest value 49.2,49-16,25+16,25.3

Mathematics

1 answer:

scoundrel [369]2 years ago

5 0

49.2 should be the answer

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Step-by-step explanation:

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Find f(3). f(x) = x2 + 5x - 9 A) 7 B) 10 C) 9 D) 15

Lelechka [254]

Answer:

f(3) = 15. Correct: D)

Explanation:

Numeric Value of a Function

The value of a function f(x) when x = a is calculated by replacing the x for a. We have the function:

$f(x)=x^2+5x-9$

It is required to find f(3), or the numeric value of f when x=3. Replace x for 3

$f(3)=3^2+5(3)-9$

$f(3)=9+15-9$

$f(3)=15$

A) Incorrect. f(3) is not 7

B) Incorrect. f(3) is not 10

C) Incorrect. f(3) is not 9

D) Correct. f(3) =15 as found above.

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3 years ago

Brian pays £465.98 a year on his car insurance. The insurance company reduces the price by 3.6%.How much does the insurance cost

inysia [295]

Answer:

The correct answer is £449.20 rounded upto 2 DP.

Step-by-step explanation:

Brian pays £465.98 a year on his car insurance.

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Price the insurance company charges now is given by subtracting the previous cost with the reduction amount.

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It's 402 feet or 74.322432m^2

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