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Margaret [11]
2 years ago
7

7 + 7x - (2x) + 3 if x = -4

Mathematics
2 answers:
frutty [35]2 years ago
4 0

Answer:

-10

Step-by-step explanation:

7 + 7(-4) - (2(-4)) + 3

7 - 28 - (-8)+3

7 - 28 +8 +3

= -10

Mekhanik [1.2K]2 years ago
4 0

Answer:

  • - 10

Step-by-step explanation:

  • 7 + 7x - (2x) + 3 =
  • 7 + 7x - 2x + 3 =
  • 10 + 5x =
  • 10 + 5*(- 4) =                     Substitute x = - 4
  • 10 - 20 =
  • - 10
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If YW bisects XYZ and mZXYW = 25°, then what is mZXYZ?​
Alisiya [41]

Answer:

50°

Step-by-step explanation:

Since, YW bisects angle XYZ.

\therefore m\angle XYZ =2\times m\angle XYW\\\therefore m\angle XYZ =2\times 25\degree \\\huge \purple {\boxed {\therefore m\angle XYZ =50\degree}}

6 0
3 years ago
Find the x-intercept and y-intercept of the line.
castortr0y [4]
The y intercept is when x = 0   so it is:-

8(0) + y = 8
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y = 6 <-------  y-interdept

x intercept is when y = 0 so:-
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8 0
3 years ago
Read 2 more answers
What is the area of this figure?
KatRina [158]
Hi!

I have attached 2 images that should help you understand :)

First, look at the edits I made to the image you posted. I separated the shape into smaller shapes so that we can find the area of each individual one. 

Let's start with the rectangle.

To find the area of a rectangle, multiply the width times the height. 
10 · 4 = 40

Rectangle = 40cm

Next up, the red triangles.

I have included another image showing the triangles combined into rectangles. So we can find the area of the triangles just like we would rectangles!

(let me know if you don't understand how I found the width + height of the triangles)

5 · 10 = 50

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And finally, the green triangles.

8 · 7 = 56

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Add it all together and you get...

40 + 50 + 56 = 146

The answer to the question is 146cm.

Next time you are having trouble with something like this, picture the triangles as rectangles! :)

3 0
3 years ago
there are 32 pets at pet store .there are 3 times as many mammals as reptiles in store.. how many reptiles are there at the pat
mr_godi [17]
Well i would do this  32*3=96 but not sure.
7 0
3 years ago
F(x) = 4x^2 + 3x - 11<br> f(-3)
Mnenie [13.5K]
Just plus in x for -3
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f (x) = 4(9) -9 - 11
f(x) = 36 - 20
f(x) = 16
3 0
3 years ago
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