3 years ago

If –3x + y = -7 is a true equation, what would be the value of -3x + y - 2?

Mathematics

1 answer:

seropon [69]3 years ago

4 0

Answer:

-9

Step-by-step explanation:

-3x+y=-7

-3x+y-2

-7-2=-9

You might be interested in

This table shows values represented by an exponential function.

krok68 [10]

Answer:

C. 12

Step-by-step explanation:

Average rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

a = 1, f(a) = 3

b = 3, f(b) = 27

Average rate of change = $\frac{27 - 3}{3 - 1}$

Average rate of change = $\frac{24}{2} = 12$

Average rate of change for the interval from x = 1 to x = 3 is 12

4 0

3 years ago

Which expression is equivalent to 16x4 – 64? and explain the answer plzz

GuDViN [60]

Answer:

4(4x1-16)

Hope this helps

Have a good day :)

PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64

Step-by-step explanation:

3 0

3 years ago

A jar contains only pennies, nickels, dimes, and quarters. There are 21 pennies, 26 dimes, and 15 quarters. The rest of the

pshichka [43]

Answer:

Step-by-step explanation:

21+26+15=62 72-62=14 :)

8 0

3 years ago

Read 2 more answers

3x^3-2x^2-147x+98=(ax-c)(bx+d)(bx-d) where a,b,c and d positive integers. Work out the value of a,b,c and d

Alexxx [7]

Expand the right side:

$(ax-c)(bx+d)(bx-d)=(ax-c)(b^2x^2-d^2)$

$=ab^2x^3-b^2cx^2-ad^2x+cd^2$

Notice that 98 = 2 * 7 * 7, so we have $c=2$ and $d=7$ .

Then

$-ad^2=-147\implies a=\dfrac{147}{49}=3$

and

$ab^2=3\implies b^2=1\implies b=1$

6 0

3 years ago

PLEASE HELP!!! WILL MARK BRAINLIEST!!<br> Use the diagram to solve for x

bearhunter [10]

Answer: 3

Step-by-step explanation:

Set them equal because they are the same so 15x+5=16x+2 so x+2=5 so x=3

3 0

3 years ago