3 years ago

Someone help if your good at maths

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

4 0

Answer:

a) w ⇒ × 5 ⇒ -3 ⇒ z

b) x ⇒ +2 ⇒ ×7 ⇒ y

y= x+2×7= x + 14

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You are buying a new internet service. The service costs \$75$75 per month. In the equation below, dd is the total number of dol

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Read 2 more answers

Given that f(x) = x2 – 5x – 14 and g(x) = x – 7, find (f +g)(x) and

Angelina_Jolie [31]

Answer:

$(f+g)(x)=x^2-4x-21$

Step-by-step explanation:

We are given:

$f(x)=x^2-5x-14\text{ and } g(x)=x-7$

And we want to find:

$(f+g)(x)$

This is equivalent to:

$=f(x)+g(x)$

Therefore, by substitution:

$=(x^2-5x-14)+(x-7)$

Rearranging gives:

$=(x^2)+(-5x+x)+(-14-7)$

Combine like terms:

$=x^2-4x-21$

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3 years ago

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3 years ago

-21 = 4x + 7 <br> It's those 2 step equations please explain how to do it thank you.

nordsb [41]

Answer:

-21-7=4x

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