3 years ago

(2x+a)(4x-2a)-(3y+a)(6y-2a)

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

3 0

(2x + 4).(4x - 2a) - (3y + 4).(6y - 2a)

2x.4x - 2x.2a + 4.4x - 4.2a - (3y.6y - 3y.2a + 4.6y - 4.2a)

8x² - 4xa + 16x - 8a - (18y² - 6ya + 24y - 8a)

8x² - 4xa + 16x - 8a - 18y² + 6ya - 24y + 8a

8x² - 18y² + 16x - 24y - 4xa + 6ya + 8a - 8a

8x² - 18y² + 16x - 24y - 4xa + 6ya

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Please help and show your work ( no links or files) plz

mr_godi [17]

Answer:

Step-by-step explanation:

Use the formula for the area of a triangle,

Area of a triangle = $\frac{1}{2}(\text{Base})(\text{Height})$

7). Area of the triangle = $\frac{1}{2}(20)(7.4)$

= 74 km²

8). Area of the triangle = $\frac{1}{2}(4)(15.4)$

= 30.8 cm²

9). Area of the triangle = $\frac{1}{2}(16)(7)$

= 56 m²

10). Area of the triangle = $\frac{1}{2}(11)(7.7)$

= 42.35 km²

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3 years ago

Is percent of change less than 100

Ivanshal [37]

You can't change more than 100 percent

6 0

3 years ago

Classify each number below as a rational number or an irrational number.

coldgirl [10]

Answer:

Step-by-step explanation:

$\sqrt{29} - Irrational$

$\frac{10}{3} - Rational$

$-2\pi - Irrational$

$-52.(92) - Rational$

$-\sqrt{81} - Rational$

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3 years ago

This is taking forever to find out

frosja888 [35]

Answer:

What is

Step-by-step explanation:

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3 years ago

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HELP MEEE!!! PLEASE!!!

lakkis [162]

Easy multiply the first number and do keep change flip

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3 years ago

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