Answer:
∠ D = 127°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ D is an exterior angle of the triangle , then
∠ D = 85° + 42° = 127°
Answer:
x=-1, y=9. (-1, 9).
Step-by-step explanation:
6x-y=-15
x+2y=17
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y=6x-(-15)
y=6x+15
x+2(6x+15)=17
x+12x+30=17
13x=17-30
13x=-13
x=-13/13
x=-1
-1+2y=17
2y=17-(-1)
2y=17+1
2y=18
y=18/2
y=9
Answer:
Step-by-step explanation:
-4|x +3| = -28
|x +3| = 7
x ∈ [4, -10]
We have the following equation:
V = kr ^ (2) h
For cylinder A we have:
251.2 = k * ((4) ^ (2)) * (5)
Let's clear k:
k = 251.2 / (((4) ^ (2)) * (5))
k = 3.14
For cylinder B we have:
V = 3.14 * ((3) ^ (2)) * (9)
V = 254.34 in ^ 3
Answer:
the volume of cylinder B is:
V = 254.34 in ^ 3
Answer:
It is 42 degrees! Hope this helps!
Step-by-step explanation:
