F(x) = 4x - 3
f(a) = 4a-3
9 = 4a-3
4a = 12
a = 12 / 4
a = 3
_____________________
f(b) = 4b-3
5+3 = 4b
8 = 4b
b = 8 / 4
b = 2
___________________
f(a+b) = 4(a+b) - 3
f(a+b) = 4(3+2) - 3
f(a+b) = 4(5) - 3
f(a+b) = 20 - 3
f(a+b) = 17
Answer:
<RUS and <SUT
Step-by-step explanation:
They have a common vertex which is U and a common side which is S
"< " means angle
Hope this helps
Answer:
see explanation
Step-by-step explanation:
Since the triangles are right use trigonometric ratios to find x and y
A
sin33° =
= 
Multiply both sides by x
x × sin33° = 2.5 ( divide both sides by sin33° )
x =
≈ 4.590
tan33° =
= 
Multiply both sides by y
y × tan33° = 2.5 ( divide both sides by tan33° )
y =
≈ 3.850
B
cos72° =
= 
Multiply both sides by x
x × cos72° = 6 ( divide both sides by cos72° )
x =
≈ 19.416
tan72° = 
Multiply both sides by 6
6 × tan72° = y, thus
y ≈ 18.466
Answer:
1. D
2. AE (with a line above the 2 letters)
3. AC (with an arrowpointing to the right above the 2 letters)
4. B, A, and C
Multiply the price of a flash drive by the number he buys:
$12 x 24 = $288 total