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1 year ago

Factor completely 9x4 12x3 21x2. 3(3x4 4x3 7x2) 3x(3x3 4x2 7x) 3x2(3x2 4x 7) Prime.

Mathematics

1 answer:

Andrew [12]1 year ago

8 0

3x2(3x2 + 4x + 7)

hope this helps i solved it :)

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Zinaida [17]

First recognize that you have complementary angles which means the angles will add up to 90 degrees

that means 64+2x+6 =90

solve for x

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2 years ago

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Contruct 3 equation starting with -2

olga_2 [115]

Answer:

1. -2, 2. -23, 3. 25

Step-by-step explanation:

1. -2+5x8/-12= step 1: add -2+5

-2+5=3 step 2: 3(8)

3x8= 24 step 3: 24/-12

24/-12= -2

2. -2(9-4)+3=? step 1: combine like terms -2(9) and -2(-4)

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1 year ago

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Abc is equilateral with AB=3x-2,BC=2x+4, and CA= x+10

yan [13]

AB = BC, so 3x-2 = 2x+4. Also, BC = CA, so 2x+4=x+10.

Solve this system of linear equations:

3x-2 = 2x+4
2x+4=x+10 => x=6

Check: Does AB=BC? Does AB=BC?

Does 3(6)-2 = 2(6)+4? Does 16=16? YES.
Does BC = CA? Does 2(6)+4 = 6+10? YES

x = 6 (answer)

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3 years ago

∠A=8x+6 ∘ start color #11accd, angle, A, end color #11accd, equals, start color #11accd, 8, x, plus, 6, degrees, end color #11ac

zvonat [6]

Answer:

$x = 8$

$B = 70$

Step-by-step explanation:

Given

$A = 8x + 6$

$B = 4x + 38$

Require

Determine x and <B

Missing in the question: A and B are vertical angles

For vertical angles A and B,

$A = B$

Substitute values for A and B

$8x + 6 = 4x + 38$

Collect Like Terms

$8x - 4x = 38 - 6$

$4x = 32$

Solve for x

$x = 32/4$

$x = 8$

To solve for B, substitute 8 for x in $B = 4x + 38$

$B = 4 * 8 + 38$

$B = 32 + 38$

$B = 70$

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2 years ago

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Match the base to the corresponding height.

Sergio039 [100]

The first base matches the second height

The second base matches the first height

The third base matches the third height

<h3>Base and height of a triangle </h3>

From the question, we are to match the base to the corresponding height

In a triangle, the height of the triangle is perpendicular to the base.

Applying this in the given diagram,

The first base matches the second height

The second base matches the first height

The third base matches the third height

Learn more on Base and height of a triangle here: brainly.com/question/17154315

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2 years ago