Answer:
D: 16.5
Step-by-step explanation:
Here,
Area of trapezium is 1/2 sum of parallel sides*height
as given,
1/2 (8+3)*3
1/2*33
16.5
Hope it helps!!
9514 1404 393
Answer:
x = -7, x = 9
Step-by-step explanation:
We presume your equation is ...
x² -2x -63 = 0
Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...
(x -9)(x +7) = 0
Solutions make the factors zero.
x -9 = 0 ⇒ x = 9
x +7 = 0 ⇒ x = -7
The solutions to the quadratic equation are x = -7 and x = 9.
Equivalent ratios
....................................................
There are two answers
x= the square root of 10.
x= the negative square root of 10
I can help with 5 - 7.
5. 19.6 (Rounds up to 20.)
6. 56.7 (Rounds up to 57.)
7. 9.86 (Rounds up to 10.)
Sorry I couldn't help with more.
I hope this does help.