Answer:
∠ EBF = 98°
Step-by-step explanation:
(3x - 15) and (2x + 10) are vertically opposite angles and are congruent, then
3x - 15 = 2x + 10 ( subtract 2x from both sides )
x - 15 = 10 ( add 15 to both sides )
x = 25
3x - 15 = 3(25) - 15 = 75 - 15 = 60°
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ EBF is an exterior angle of the triangle , then
∠ EBF = 60° + 38° = 98°
Answer:
width=2 11\16
length= 3 13\16
Step-by-step explanation:
the width is unknown lets name it x
width=x
length=x±9\8
2[x±x±9\8]=13 1\4 cm
x± x =2x
2x×2=4x
9\8×2=9\4
4x±9\4=13 1\4
4x=13 1\4 -9\4
52\4-9\4=43\4
4x=43\4
43\4÷4=2 11\16
so x which is width =2 11\16
length 2 11\16 ±9\8=3 13\16
Answer:
8
Step-by-step explanation:
y²+by+16= (y+4)²
y²+by+16= y²+2*4*y+4²
y²+by+16= y²+8y+16
by=8y
b=8
Answer:
B. (-5,-4)
Step-by-step explanation:
The answer must be at the point where the two functions intersect. They meet at the points (-5,-4) and (2,0). Since (2,0) is not an answer choice, (-5,-4) must be the answer.
Yes. This is because you take the two fractions and find a common denominator. The common denominator being 12 so then you have 39/12 and 8/12. If each scarf she makes is 8/12 yards of fabric she should have enough to make two scarves.