Answer:
∠ACD= 109°
Step-by-step explanation:
∠A=38
180- ∠A= ∠B+C
180-38= 2∠B( ∠B=∠C) ( angles opposite to equal sides are equal)
142=2∠B
∠B=71
∠ACD=∠A+∠B ( exterior angle property)
∠ACD= 38+ 71= 109°
Answer:
y = 1/2x + 14
Explanation:
y = 1/2x + 14 is perpendicular to y = -x = 18 and passes through the slope (-6, 11)
Tip:
Desmos (the app) helps a lot with graphing problems.
|5 - 7| = |-2| = 2
|12.4 - 16.1| = | -3.7| = 3.7
-2 x 7 = -14
Answer:
I don’t think it’s a right triangle
Step-by-step explanation:
5^2 + 8^2 should equal 12^2 for it to be a right triangle.
Answer:
We conclude that:

Hence, option B is correct.
Step-by-step explanation:
Given the expression

solving

Scalar Multiplication: Multiply each of the matrix elements by a scalar

Simplify each element

Therefore, we conclude that:

Hence, option B is correct.