Answer:
b1 = 2A/h – b2
Step-by-step explanation:
Answer:
15/2
Step-by-step explanation:
Hello,
the area of a triangle is b*h/2
we can set BC as the base because AC is harder to calculate.
Then we draw an imaginary height.
There's no way to really explain, but the height would be 5 here, since 3 - -2 = 5
The base is 3
3*5/2 = 15/2
Thanks,
lacampanella
First question: Answer is D
∵ Area of rectangle is L ⋅ W = 12 ⋅ 6 = 72 
∵ Area of the shaded region is 36 
∴ The area of the unshaded region =
the area of the whole rectangle - the shaded region =
72 - 36 = 36 
∴ The area of the unshaded region = 36 
Second question: Answer is A
∵ Area of triangle is
Bh =
⋅ x ⋅ 4 = 32
∵ Height (h) = 4 ft
∴ Base (B) =
⋅ 2 = 8 ⋅ 2 = 16
∴ Base (B) = 16 ft
Third question: Answer is D
6.009 = 6 + 0.009
Fourth question: Answer is B
104.0032 = One hundred four and thirty-two ten-thousandths
Fifth question: Answer is B
∵ Perimeter of rectangle = 2(W+L) =
2(80+120) = 2 ⋅ 80 + 2 ⋅ 120 = 160 + 240 = 400 
∴ He needs 400
of fencing
Its 2 6/7 divided by 1 2/3
change to improper farctions:-
= 20 / 7 / 5/3
= 20/7 * 3/5
= 60/35
= 12/7
= 1 5/7 songs per minute
C it’s Just look it up bro