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liubo4ka [24]
3 years ago
13

Help triangle sum therom and idk what to do

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0
Your answer would be x = 12

The triangle sum theorem states that the 3 angles in a triangle equal 180.

Since we have a 90 degree angle shown, we can add it to the other two and set it equal to 180.

30+90+6x-12=180
108+6x=180
6x=72
x=12
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Find m∠ABD and m∠CBD given m∠ABC = 111∘.
sineoko [7]

Answer:

m∠ABD = 88º

m∠CBD = 23º

Step-by-step explanation:

(-10x + 58) + (6x + 41) = 111

Combine like terms

-4x + 99 = 111

Subtract 99 from both sides

-4x = 12

Divide both sides by -4

x = -3

------------------------

m∠ABD = -10x + 58

m∠ABD = -10(-3) + 58

m∠ABD =  = 30 + 58

m∠ABD = 88º

m∠CBD = 6x + 41

m∠CBD = 6(-3) + 41

m∠CBD = -18 + 41

m∠CBD = 23º

7 0
3 years ago
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Reil [10]

Answer:

144'

Step-by-step explanation:

Your ratio is 45'/5" or 9:1

9x4"=36'

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45+36+36+27=144'

I believe this is the same answer as I gave previously.

4 0
3 years ago
28. A student suggests that she can show (-1)(-1) = 1 using the
slava [35]

Answer:

not

Step-by-step explanation:

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3 0
3 years ago
Kellie bought 8 towels and spent $39.60.Each towel costs the same amount.
kvasek [131]

Answer: $54.45

Step-by-step explanation:

      First, we will find the price of one towel.

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-> We will multiply the cost of one towel by 11 to find the total cost.

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8 0
2 years ago
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Anna71 [15]

Answer:

4x+8=-24 and

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Step-by-step explanation:

2/3(6x+12)=-24

or,12x+24=-72

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4x+8=-24

or,x=-24-8/4

•°•x=-8

4x=-32

or,x=-32/4

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4 0
3 years ago
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