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pickupchik [31]
3 years ago
13

How do you do this? (Not looking for answer, just how to do it)

Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0
All triangles add up to 180 degrees. Since sines can't be a negative, you need to add -130 to 180. The answer to this question would be sine 50 degrees. 
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Angle B and angle C are complementary. If angle B is five times the size of angle C what is the measurements of both angles.
faltersainse [42]

Step-by-step explanation:

Let Angle C be x

So angle B will be 5x

Since they both are complementary, we can come up with this equation.

x+5x=90 degrees

6x=90 degrees

x=90/6,x=15

Measures of Angles

Angle C=x=15 degrees

Angle B=5x=5*15=75 degrees

PLEASE FOLLOW ME AND MARK AS BRAINILIEST

3 0
3 years ago
Simplify these expression 45m divide by 5 <br> 22t x 4s <br> 121x divide by 11<br> 12p x 12r
lara31 [8.8K]
45m/5 = 9m

22t·4s = 88st

121x/11 = 11x

12p·12r = 144pr

theses are too basic to really show work.


3 0
2 years ago
What is the area of the composite shape?
Lelu [443]

Answer:

84 sq. inches

Step-by-step explanation:

When you section off each, you can find the area of each shape and add together to make composite.

Triangle on left is 6 sq. inches

Rectangle on right (5x10) is 50 sq. inches

Rectangle on bottom (7x4) is 28 sq. inches

3 0
3 years ago
Which of the following triangle congruence theorems would be used in this proof?
HACTEHA [7]

The answer is SSS congruency.

AB=CD (given)

BC=DA (given)

AC=AC (common side)

∴ΔADC≅ΔABC

Please mark brainliest if this helps!

5 0
3 years ago
Compare and contrast expanding and simplifying
Tasya [4]

Answer: With algebraic expressions, you can’t add and subtract any terms like you can add and subtract numbers. Terms must be like terms in order to combine them. So, you can’t always simplify an algebraic expression by following the order of operations. You have to use the distributive property to rewrite the expression and then combine like terms to simplify. With numeric expressions, you can either simplify inside the parentheses first or use the distributive property first.

Step-by-step explanation: Sample Response

6 0
3 years ago
Read 2 more answers
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