Answer:
∠ 1 = 109° , ∠ 2 = 71°
Step-by-step explanation:
The 2 angles form a linear pair and sum to 180°
Sum the 2 angles and equate to 180
5x + 9 + 3x + 11 = 180 , that is
8x + 20 = 180 ( subtract 20 from both sides )
8x = 160 ( divide both sides by 8 )
x = 20
Then
∠ 1 = 5x + 9 = 5(20) + 9 = 100 + 9 = 109°
∠ 2 = 3x + 11 = 3(20) + 11 = 60 + 11 = 71°
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
1300 x 1.042 = $1354.6
Answer:
D. 340 square inches
Step-by-step explanation:
Side length translates to 1 side of the square, so you do 10 x 10 to find the area of the square.
10 x 10 = 100
The triangle one isn't much more difficult. The formula for finding the area of a triangle is bh1/2
So:
10 x 12 = 120/2=60
From there just multiply the result by 4- the amount of triangles on the square pyramid, and you'll get your answer.
60
x 4
240 + 100 = 340 square inches
if this helped brainliest would be epic
