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sergejj [24]
2 years ago
12

In ΔCAB, if m∠A = 10x + 9, m∠B = 34°, and m∠C = 97°, what is the value of x?

Mathematics
1 answer:
inna [77]2 years ago
6 0
X=4
If you plug in 4 for x you should get 49 which would add up with the other angles to equal 180
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alukav5142 [94]

Answer:

40

Step-by-step explanation:

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Please help if so thank you And explain
Naddika [18.5K]

Answer:

x = 34°

Step-by-step explanation:

Given AC and BD are perpendicular bisectors, we can say that at point E, there are 4 right angles [perpendicular bisectors intersect to create 4 90 degree angles].

Now, if we look at the triangle AED, we know that it is a right triangle, meaning that angle E is a right angle.

Also,

We know sum of 3 angles in a triangle is 180 degrees. Thus, we can write:

∠A + ∠E + ∠D = 180

<em>Note: Angle A and Angle D are just the half part of the diagram. More exactly we can write:</em>

∠EAD + ∠ADE + ∠DEA = 180

Given,

∠EAD = 56

∠DEA = 90

We now solve:

∠EAD + ∠ADE + ∠DEA = 180

56 + ∠ADE + 90 = 180

146 + ∠ADE = 180

146 + x = 180

x = 180 - 146

x = 34°

4 0
3 years ago
4.
Lana71 [14]

Answer:

A.

Step-by-step explanation:

If you substitute each answer that is below 18, you will get an answer that is below 30 every time.

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Is -1/11 terminating or repeating
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Answer:

Repeating

Step-by-step explanation:

-1/11 = -0.0909090909.....

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