Answer: 1 square and 4 triangles
Step-by-step explanation:
you can see the square at the bottom. Around you can see 1 triangle in the front 2 on the sides and one in the back.
Hello,
x²+5x-6=0
Δ=5²+4*6=49=7²
x=(-5+7)/2 or x=(-5-7)2
==>x=1 or x=-6
Answer B
Answer:
9.75
Step-by-step explanation:
20h = 195
h = 195/20
h = 9.75
Answer: $9.75/hour
The vertex angle bisector divides the triangle into two congruent right triangles. The sine of half of the vertex angle will be half of the base divided by the side (from the definition of the sine of an angle). Then the total vertex angle is ...
α = 2×arcsin(3.5/5) ≈ 88.9°
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Using the Law of Cosines, the vertex angle can be found as
arccos((7^2 -5^2 -5^2)/(-2*5*5)) = arccos(1/50) ≈ 88.9°
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