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liq [111]
3 years ago
5

Helppppp pleasee... and thanks

Mathematics
2 answers:
VMariaS [17]3 years ago
7 0
1. 19        2.  12    3. 7      4. 4       5.  3    6.  4       7. 4         8.  7         9. 12

10.    19
lara31 [8.8K]3 years ago
4 0
I'll help you by giving you the answers to the first two, and showing you the steps.
      The equation is: f(x) = x² + 3
 You're x = -4, what I'd do is plug that into your f(x):
     0 = x² + 3
    -4 = x² + 3 (subtract three on either side, to move it to the other side)
 -3-4 = x²
    -7 = x² 
Your answer is -4, -7 for the first one. Since it's inverse function, you just change the places of f(x) and x. I think, that's how I understand it...

The second one, is:
f(x) = x² + 3
-3 = x² + 3
-3-3 = x²
-6 = x²
-3, -6.

I see a pattern, so it should be right. If you need help with the others to check your work, don't hesitate to ask. I hope I helped.
   

 

    
     

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klemol [59]

Answer:

16 units

Step-by-step explanation:

A/B = 5/4 = 20/p

5/4 = 20/p

5p = 4 × 20

p = 4 × 4

p = 16

Answer: 16 units

6 0
2 years ago
Find the area of the figure.<br><br> answer choices:<br> 31 ft², 80 ft², 40 ft², 60 ft²
IrinaVladis [17]

Answer:

60 ft²

Step-by-step explanation:

You can divide the figure into 2 parts.

First, solve for the rectangle: Area of a rectangle = b*h = 4ft x 10ft = 40ft²

Then, solve for the triangle:

Height = 10ft - 5ft = 5ft

Base = 12ft - 4ft = 8ft

Area of a triangle = (b*h)/2 = (5ft x 8ft)/2 = 20ft²

Just add them together: 20ft² + 40ft² = 60ft²

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3 0
2 years ago
Find the slope of the following equation .simplify your answer 5x+2y=-10
defon

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
How would you solve this by elimination?
jekas [21]
To solve this equation by elimination, what you would do is multiply one of the equations by -1, or distribute -1 to each term in the equation, any of the 2 equations. Then align the equations and add them together.

-(X + 3y = 3)
-X - 3y = -3

-X - 3y = -3
X + 6y = 3
__________
3y = 0
y = 0/3 = 0.

Now we can solve for x, by simply plugging the value of y into any of the 2 equations.

X + 6y = 3
X + 6(0) = 3
X + 0 = 3
X = 3.

The solution to your system of equations would be (3,0).

Check this by plugging in the point to the other equation and see if it is true.

X + 3y = 3
(3) + 3(0) = 3
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Thus it is the solution.
5 0
3 years ago
Graph the equation<br>y=-(x+2)^2+7​
ELEN [110]

Step-by-step explanation:

Distribute:

=−x2+−4x+−4+7

Combine Like Terms:

=−x2+−4x+−4+7

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=−x2+−4x+3

Answer:

=−x2−4x+3

7 0
3 years ago
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