3 years ago

12X-7X(1-9X)=-3+9X(7X-1)

Mathematics

1 answer:

Georgia [21]3 years ago

5 0

What are you solving for? X?

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How many kilometres on the ground is represented by 9 cm on the map?

Aloiza [94]

Answer:

22500

Step-by-step explanation:

You have to multiply 9 by 25000.

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2 years ago

A board of length 7 divided by the quantity x minus 2 end of quantity meters was cut into two pieces. If one piece is 3 divided

bulgar [2K]

Answer:

Length of other board $=\frac{4x+20}{x^{2} -4}$ metres

Step-by-step explanation:

Given: Length of board = $\frac{7}{x-2}$ metres

Length of board was divided into two.

Length of one piece = $\frac{3}{x+2}$ metres

Let $l$ = length of the other board

Length of the other board = Length of board - Length of one piece

So, $l=\frac{7}{x-2}-\frac{3}{x+2}$

$l=\frac{7(x+2)-3(x-2)}{(x-2)(x+2)} \\\\l=\frac{7x+14-3x+6}{x^{2} -4} \\\\l=\frac{4x+20}{x^{2} -4}$

Thus, length of the other board $=\frac{4x+20}{x^{2} -4}$ metres

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3 years ago

Solve the equation. 33 = p – 6.71 A. –39.71 B. –26.29 C. 39.71 D. 26.29

jeka57 [31]

Answer

C. 39.71

Explanation

33 = p - 6.71

The first step is to make the like terms to be on the same side.

Add 6.71 on both sides of the eqution

33 + 6.71 = p - 6.71 + 6.71

39.71 = p

∴ p = 39.71

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2 years ago

I have 7 classes impacting my grade equally.

Nitella [24]

Answer:

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Step-by-step explanation:

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2 years ago

Match each binomial expression with the set of coefficients of the terms obtained by expanding the expression.

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explanation:

(A) $(2x+y)^3=8 x^3 + 12 x^2 y + 6 x y^2 + y^3$

Answer option C) 8, 12, 6, 1

B) $(2x+3y)^4 = 16 x^4 + 96 x^3 y + 216 x^2 y^2 + 216 x y^3 + 81 y^4$

Answer option D) 16, 96, 216, 216, 81

C) $(3x+2y)^3 = 27 x^3 + 54 x^2 y + 36 x y^2 + 8 y^3$

Answer option B) 27, 54, 36, 8

D) $(x+y)^4 = x^4 + 4 x^3 y + 6 x^2 y^2 + 4 x y^3 + y^4$

Answer option A) 1, 4, 6, 4, 1

8 0

2 years ago

Read 2 more answers