9514 1404 393
Answer:
(a) -7
Step-by-step explanation:
You are given f(x) = -3. Look for -3 in the f(x) column. (You will find it in the <em>first row</em>.)
You want the corresponding value of x. It will be in the <em>first row</em> of the x column. The value there is -7.
The value of x for f(x) = -3 is -7.
Answer:
100 points
Step-by-step explanation:
maths and more maths
Answer:
99.0 in²
Step-by-step explanation:
The area (A) of the sector of the circle is calculated as
A = area of circle × fraction of circle
= πr² × 
( where r is the radius )
Here r = 9, thus
A = π × 9² × 
= 81π × ≈ 99.0 in²
Answer: x=3 and y=5
Step-by-step explanation: 11x-6y=3, 5x-8y=-25
11x-6y+6y=3+6y
11x/11=3/11+6y/11
x=3+6y/11
5(3+6y/11)-8y(11)/11
5(6y+3)-88y/11
30y+15-88y/11
88y-30y
58y
11(15-58y)/11=11(-25)
15-58y-15=-275-15
-58y/-58=-290/-58
y=5
x=3+6(5)/11
3+30
33
33/11
x=3
x=3, y=5
