d.(x - 9) (x - 3)
Step-by-step explanation:
x² - 12x + 27 = 0
x² - 9x - 3x + 27 = 0
x(x - 9) - 3(x - 9) = 0
(x - 9) (x - 3) = 0
Answer:

Step-by-step explanation:
To solve an equation for one of its variables do that:
- Underline the variable
- Separate it one side and the other terms on the other side
- Make its coefficient equal to 1
Let us use these steps to solve our question
∵ V = πr²h
→ Underline r²
∴ V = π<u>r²</u>h
→ Take π and h to the other side by dividing both sides by πh
∵ 
∴ 
→ The coefficient of r² is 1, so switch the two sides
∴ 
Answer: 3
Step-by-step explanation:
12C - 4 = 14C - 10
12C - 14C = - 10 + 4
- 2C = - 6
C = <u>- 6</u>
-2
C = 3
Answer: Divide distance by speed to get time.
Speed and time are inversely proportional. As speed increases, time decreases.
Distance = speed × time So distance is the the constant of variation.
Step-by-step explanation: Divide distance by speed to get time.
180km÷50km/h = 3.6h by Car
180km÷45km/h = 4h by Bus
180km÷40km/h = 4.5h by Truck
180km÷25km/h = 7,2h by Bicycle
Answer:
B) 1.25
Step-by-step explanation:
$3/12 cookies = $.25/cookie
.25 * 5 = 1.25