9514 1404 393
Answer:
7. 91 m²
8. 56 in²
9. 105 in²
10. 135 m²
Step-by-step explanation:
The formula for the area of a triangle is ...
A = 1/2bh
where b is the base length, and h is the height perpendicular to the base.
The formula for the area of a trapezoid is ...
A= 1/2(b1 +b2)h
where b1 and b2 are the lengths of the parallel bases, and h is the perpendicular distance between them. Note that this formula is virtually identical to the triangle formula, with the triangle 'b' being replaced by (b1+b2).
__
Fill in the numbers and do the arithmetic. The result is shown in the attachment. (We have used the triangle formula for all, with b1+b2 being used for 'b' to find the area of the trapezoids.)
7. A = 1/2(14 m)(13 m) = 91 m²
8. 56 in²
9. A = 1/2(14 +16 in)(7 in) = 105 in²
10. 135 m²
Answer:
StartFraction 7 Over 8 EndFraction of an hour
7/8 hour
Step-by-step explanation:
Total movie time = 3 1/2 hours
Lily turned the movie off One-fourth of the way through,
1/4 of 3 1/2
= 1/4 ×7/2
= 7/8 hour
how much time did she spend watching it.
Time spent watching the movie = 3 1/2 hour - 7/8 hour
= 7/2 - 7/8
= 14-7/8
= 7/8 hour
StartFraction 7 Over 8 EndFraction of an hour
I’m 85% sure it’s the long line on the bottom if not then uhm I guess I’m wrong
Answer:
80,000
Step-by-step explanation:
The 8 in the expression = 8,000
If we multiply 8,000 by 10 it would give us 80,000
easy :)