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Westkost [7]
3 years ago
8

Use properties to prove that the expressions are equivalent. Complete the statements. Prove 7x - 4x = 3x. Use the distributive p

roperty to factor out the x, and the expression becomes . Complete the subtraction inside the parentheses, and the expression becomes . Use the commutative property of multiplication, and the expression becomes
Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Answer:

First one is x(7-4)

Second one is x(3)

Third one is 3x

Step-by-step explanation: Plz mark brainliest

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In this circle, the area of sector COD is 50.24 square units. The radius of the circle is units , and units.
maks197457 [2]

Let angle be alpha

\\ \rm\Rrightarrow Area=50.24

\\ \rm\Rrightarrow \dfrac{\alpha}{360}\pi r^2=50.24

\\ \rm\Rrightarrow \alpha 3.14r^2=18086.4

\\ \rm\Rrightarrow \alpha r^2=5760

\\ \rm\Rrightarrow r^2=\dfrac{5760}{\alpha}

\\ \rm\Rrightarrow r=\sqrt{\dfrac{5760}{\alpha}}

If you have angle measure in degree put in place of Alpha and get the value elaw this is our final answer

7 0
2 years ago
-5a to the second power-7a
kakasveta [241]
-5a^2 - 7a = -a x (5a + 7)
let me know if you have any other questions 
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7 0
3 years ago
Do these two in the figure appear to be similar?
iVinArrow [24]

Hello,

Please, see the attached file.

Thanks.

4 0
4 years ago
We are currently learning triangle similarity and about dilations in geometry. We have been using cross multiplying to figure th
miss Akunina [59]
Took me a minute to think.

Form ratios.

x, the small triangle, forms a ratio with 6, the big triangle.

The part of the side that is equal(with the dash) that is part of the small triangle is equal to 6-x, the big triangle.

Yes, you can cross-multiply here!

\frac{6}{x}  =  \frac{8}{6-x}

<em>Now,</em><em> </em>cross multiply.
P.S. Use distributive property.

36-6x = 8x

Add 6x on both sides.

36=14x

Divide by 14 on both sides.

x = \frac{36}{14} = \frac{18}{7}



4 0
3 years ago
Matrix L is a 1 ⨯ 8 matrix, matrix M is a 8 ⨯ 8 matrix, matrix N is a 1 ⨯ 1 matrix, and matrix P is a 8 ⨯ 1 matrix. Find the dim
Alenkinab [10]

Answer: fhesfuiewf fjjbeuihr jkfhur

Step-by-step explanation:

7 0
3 years ago
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