Answer:
(-2,0)
Step-by-step explanation:
y=-2x-4
y=x+2
------
- x+2= -2x-4
- 3x=-6
- x=-2
- y=x+2=-2+2=0
(-2, 0) is the answer
Volume of a cone: 1/3

r²h
r is the radius (diameter ÷ 2) and h is the height.
Find the radius first using the diameter: 2

÷ 2 = 1.25
Now plug in the numbers into the formula.
1/3

1.25²10 = <span>16.4
</span>
The volume of the cone is 16.4 cubic feet.
Answer: Answer in the photo
Step-by-step explanation:
Answer:
The correct price is 10.01
Step-by-step explanation:
The manager multiplied the price by 43%, instead of noticing the words "mark up", which means the price increased by 43 percent and the cost is multiplied by 143/100!
Answer:
(4x^2 +9)(4x^2-9) =0
Step-by-step explanation:
16x^4 - 18 = 0
Rewriting
(4x^2)^2 - 9^2 =0
We notice that this is the difference of squares
a^2 - b^2 = (a-b)(a+b)
(4x^2 -9)(4x^2+9) =0