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Marysya12 [62]
2 years ago
13

1. If you are asked to use elimination to solve for x", what do you need to multiply the bottom equation by to eliminate "y?

Mathematics
1 answer:
hram777 [196]2 years ago
6 0

Answer:

-5

Step-by-step explanation:

There is different ways to solve methods of elimination but if you wanted to cancel y out you would multiply by the opposite sign....for example

7x + 5y = 19

-5 (2x + y = 19) ---> -10x -5y = 95

this would cancel out your y to solve for x so you can plug it back in and solve! hope this helps!!!

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The ratio 14:18 is equivalent to which of the following?
Ivan

Answer:

\frac{7}{9}

Step-by-step explanation:

\frac{14:2}{18:2} =\frac{7}{9}

3 0
3 years ago
Find the slope of the line
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Answer:

4

Step-by-step explanation:

rise is 4

run is 1

4/1=4

5 0
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The value of x is:
Alex Ar [27]

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No solution

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8 0
3 years ago
Here is a solid square-based pyramid.
Anna11 [10]

Answer:

Step-by-step explanation:

A. The front elevation of the pyramid in the direction of the arrow is herewith attached to this answer.

B. Base of the pyramid is a square of side 12 cm.

   The height of the pyramid is 8 cm.

   Slant height, XT, is 10 cm.

The total surface area of the pyramid can be determined by adding the surface areas that make up the shape.

Area of the triangular face = \frac{1}{2} × base × slant height

                                            =  \frac{1}{2} × 12 × 10

                                            = 60 cm^{2}

Area of the square base = length × length

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                                         = 144  cm^{2}

Total surface area of the pyramid = area of the base + 4 (area of the triangular face)

                              = 144 + 4(60)

                              = 144 + 240

                              = 384 cm^{2}

Therefore, total surface area of the pyramid is 384 cm^{2}.

5 0
3 years ago
Simplify using the laws of exponents: x4 x6 =
aksik [14]
Hey there!
The law of multiplication of exponents is:
a^b * a^c = a^b+c
Therefore, we have:
x^4 * x^6= x^4+6 = x^10
Hope this helps!
8 0
3 years ago
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