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Eduardwww [97]
3 years ago
10

Help pls ;(3x-20=x+10

Mathematics
2 answers:
Marysya12 [62]3 years ago
6 0
The correct answer is 15 :)
Andrei [34K]3 years ago
4 0

Answer:

15

Step-by-step explanation:

3x-20=x+10

   -10    -10

3x-30=x

-3x     -3x

-30=-2x

/-2    /-2

15=x

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I would say an 80 or 90%

Step-by-step explanation:

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How do you find the slope on a graph?
Katarina [22]

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Step-by-step explanation:

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8 0
3 years ago
Expressions equivelant to 64^x
Lana71 [14]

64^{\text{x}} = (8^2)^{\text{x}} = 8^{2\text{x}}

The rule used is that (a^b)^c = a^{bc} we multiply the exponents b and c.

Or we could say this

64^{\text{x}} = (4^3)^{\text{x}} = 4^{3\text{x}}

Or,

64^{\text{x}} = (2^6)^{\text{x}} = 2^{6\text{x}}

Therefore, we have multiple possible answers.

4 0
2 years ago
Please help me for algebra
In-s [12.5K]
Step by step solution:

The clothes are hung on the middle so the angles opposite to angle x is equal....1)

As we know that the sum of all the angles is 180°

let us take angle y which is opposite to angle x

Therefore,
angle x + angle y + 158°= 180°
2 angle x + 158°=180°(by 1)
2 angle x = 180°-158°
2 angle x = 22°
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Hope it helps you....
3 0
3 years ago
Suppose A and B are square matrices of the same size. Which of the following are necessarily true?
kiruha [24]

Answer:

c. (A + B)^2-A^2 + 2AB + B^2

Step-by-step explanation:

Given that:

a.

(A-B)^2 = A^2 - 2AB + B^2

If and only if AB = BA

Then;

(A-B)^2 = (A -B ) (A - B)

(A-B)^2 = A^2 - AB-BA + B^2    (FALSE)

b.

(AB)^2=A^2B^2

on true if any only if AB =BA

(AB)^2= (AB) (AB)

c.

(A+ B)^2 =  A^2 + 2AB + B^2

(A+ B)^2 = (A + B) (A+B)

(A+ B)² = A × A + A × B + B × A + B × B

(A+ B)^2 = A^2 + A*B + B*A + B^2

This is true

5 0
3 years ago
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