3 years ago

Simplify the expression: 2x( 4x + 5) A 622 + 72 B 82 + 5 C 812 + 103 D O81 +10

Mathematics

1 answer:

nexus9112 [7]3 years ago

3 0

Answer:

=8x2+10x

Step-by-step explanation:

2x(4x+5)

=(2x)(4x+5)

=(2x)(4x)+(2x)(5)

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Fill in the answer to 5+5=4+_

Gnom [1K]

Answer:

Step-by-step explanation:

5+5=10, so 4+6=10

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3 years ago

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Find the area of a triangle with a base of 7.5 m and a height of 4*

oksian1 [2.3K]

Answer:

15 units²

Step-by-step explanation:

Hi there!

$A=\displaystyle\frac{1}{2} bh$ where <em>b</em> is the base and <em>h</em> is the height

Plug in the base (7.5) and height (4):

$A=\displaystyle\frac{1}{2} (7.5)(4)\\\\A=\displaystyle\frac{1}{2} (30)\\\\A=15$

Therefore, the area of the triangle is 15 units².

I hope this helps!

8 0

3 years ago

Helppp pleaseeeeeeeeeeeeeeeeeeeeeee

Ugo [173]

$y=4x$

because

$\frac{12}{3} =\frac{16}{4} =\frac{20}{5} =\frac{24}{6} =\frac{28}{7} =4$

7 0

3 years ago

Simplify 2x+3y^2 -2(x-y2)

poizon [28]

Multiply the bracket by -2

2x+3y^2 -2(x-y2)

2x+3y^2-2x+2y^2

2x-2x+3y^2+2y^2- rearranging

3y^2+2y^2

5y^2

Answer: 5y^2

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3 years ago

Find real solutions x-(4-8x)^0.5=0

Vadim26 [7]

Answer:

There are no real roots for this equation.

Step-by-step explanation:

The only solution is irrational: x-√(4-8x)=0

I have provided a graph to help you with this problem.

Hope this helps! :)

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3 years ago