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Sidana [21]
3 years ago
9

Please help asap 29 pts

Mathematics
2 answers:
Nookie1986 [14]3 years ago
8 0

Hi There!

Evaluate 4x - 3y + (7x - 7y) when x = 6 and y = -1.

Remember to follow P.E.M.D.A.S

-------------------------------------------------

Solution:

= 4(6) - 3(-1) + (7(6) - 7(-1))

= 4(6) - 3(-1) + (42 - (-7))

= 4(6) - 3(-1) + 35

= 24 - (-3) + 35

= 21 + 35

= 56

-------------------------------------------------

Answer: C) 56

-------------------------------------------------

Hope This Helps :)

Alexeev081 [22]3 years ago
3 0

Answer:

C. 56 is the correct answer, my bad.

Step-by-step explanation:


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Dmitrij [34]
Hey there!

First solve 2 x 4 . . .

2 x 4 = 8
This means each side of the shape is 8 inches.

To find area, multiply the two sides . . .

8 x 8 = 64 <---------

The area of the shape is 64 inches.

Hope this helps you.
Have a great day!
3 0
3 years ago
Read 2 more answers
Money off coupons has been circulated to 300 house holds.only 2/5m of these were redeemed (used) in the local supermarket to get
Crank
3/5 of 300 is 180. 180 coupons were unused.
8 0
4 years ago
The x-coordinate of the vertex of the equation y = 2x2 − 4x + 12 The x-coordinate of the vertex of the equation y = 4x2 + 8x + 3
dolphi86 [110]

So since the vertex falls onto the axis of symmetry, we can just solve for that to get the x-coordinate of both equations. The equation for the axis of symmetry is x=\frac{-b}{2a}, with b = x coefficient and a = x^2 coefficient. Our equations can be solved as such:

y = 2x^2 − 4x + 12: x=\frac{4}{2*2}=\frac{4}{4}=1

y = 4x^2 + 8x + 3: x=\frac{-8}{2*4}=\frac{-8}{8}=-1

In short, the vertex x-coordinate's of y = 2x^2 − 4x + 12 is 1 while the vertex's x-coordinate of y = 4x^2 + 8x + 3 is -1.

6 0
3 years ago
Kelsey is going to graph the ordered pairs that are represented by this table on a coordinate plane
gayaneshka [121]

Answer:

4

Step-by-step explanation:

Since there are 4 columns of x and y values the answer is 4.

3 0
3 years ago
PLEASE HELP For what value of the variable will the value of 2x+1 be 20 greater than 8x+5?
wlad13 [49]

It will be a negative.

for an example: -20 for x would mqke 2x + 1 into -39 and 8x + 5 into -155. that's 116 apart, so maybe -2(8) + 5 = -11

-2(2) + 1 = -3

but that's only 8 apart, so it'd be higher.

-4(2) + 1 = -7

-4(8) + 5 = -27

BOOM

Tadaaaa,

You probably thought positive, but sometimes it's negative, you know what I mean?

6 0
4 years ago
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