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Anarel [89]
3 years ago
15

What is the solution of this system of linear equations?y=3x-2 y-2=x

Mathematics
2 answers:
victus00 [196]3 years ago
5 0
Your answer would be -8
eduard3 years ago
4 0

Answer:

(2,4)

Step-by-step explanation:

because 2 times 4 would equal 8

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Is it ever possible that cos (A−B)=cos ⁡A−cos ⁡B? Why
svetlana [45]

Answer:

  yes, there are an infinite number of solutions

Step-by-step explanation:

The attached graph shows values of A and B (x and y) that can make this equation be true. Any of the points on any of the curves will satisfy the equation. (The repetition continues indefinitely in all directions.)

8 0
3 years ago
A snowball has a radius of 7cm. What is the volume of the snowball?
BabaBlast [244]

Answer:

The volume is 1436.8in^2 .

Step-by-step explanation:

-To find the volume of a sphere, you need the formula:

V = \frac{4}{3} \pi r^3

-Use the radius for the formula:

V = \frac{4}{3} \pi 7^3

-Then, you solve:

V = \frac{4}{3} \pi 7^3

V = \frac{4}{3} × \pi × 7^3

V = \frac{4}{3} \pi × 343

V = \frac{1372}{3} \pi = 1436.755

-Round the answer to the nearest tenth:

V = 1436.8

So, therefore the volume is 1436.8in^2 .

7 0
3 years ago
G is the centroid of triangle ABC.
AleksAgata [21]

Answer:

  • x = 37
  • DG = 22
  • AG = 44
  • AD = 66

Step-by-step explanation:

We presume your "centroid ratio theorem" tells you that AG = 2·DG, so ...

  (x+7) = 2(x -15)

  x + 7 = 2x - 30 . . . . eliminate parentheses

  37 = x  . . . . . . . . . . .add 30-x

Then AG = 37+7 = 44

and DG = 37-15 = 22.

Of course, AD = AG +GD = 44 +22 = 66

7 0
3 years ago
Read 2 more answers
What is the lateral surface area of a square pyramid with a side length 11.2 cm and a slant height 20 cm
madam [21]
Notice the picture below

the lateral area, or just the area of the sides, well, the sides are really just 4 triangles, so just get the area of each, and sum them up, that's the lateral area

3 0
3 years ago
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Which of the following terms can be combined in this expression? -13 - x/5 + 6.2y + 20.5x - 3/8y
dsp73
C. 6.2g can be combined with -3/8y. This is because they both end in ‘y’.
3 0
3 years ago
Read 2 more answers
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