3 years ago

A function is given: f (x) = 2x + 3 What is the value of f(-2)?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

5 0

Answer:

f(-2) = -1

Step-by-step explanation:

-2 is x, so replace x as -2 into the equation

f (-2) = 2(-2) + 3

f (-2) = -4 + 3

f (-2) = -1

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Add the numerator and denominator seperatly, then find the quotient <br> -3( - 8) / 5 + 7

Aleonysh [2.5K]

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what is the common number to be subtracted from each term of the ratio 11:8 to get the new ratio 2:1.?

JulijaS [17]

Answer:

5 should be subtracted from each term

Step-by-step explanation:

$\frac{11-x}{8-x}=\frac{2}{1}$

Cross multiply,

1 * (11 - x) = 2*(8-x)

11 -x = 2*8 - 2*x

11 - x = 16 - 2x

Subtract 11 from both sides,

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