Answer:
64y² - 81
Step-by-step explanation:
(8y +9)(8y - 9)
64y² - 72y + 72y - 81
64y² - 81
Answer:
The minimum number of words left to write is 215
Step-by-step explanation:
Let
w -----> the number of words left to write
we know that
The number of words left to write plus the words written so far must be greater than or equal to 500 words
remember that the word "at least" means "greater than or equal to"

Solve for w
Subtract 285 both sides


The minimum number of words left to write is 215
The final answer is 10a+7
Let's solve for x.<span><span>y−3</span>=<span>x+2</span></span>Step 1: Flip the equation.<span><span>x+2</span>=<span>y−3
</span></span>Step 2: Add -2 to both sides.<span><span><span>x+2</span>+<span>−2</span></span>=<span><span>y−3</span>+<span>−2</span></span></span><span>x=<span>y−5
</span></span>Answer:
<span>x=<span>y−<span>5</span></span></span>
Answer:
ft cubed
Step-by-step explanation:
The volume of a cone is:
, where
is the base and h is the height.
In this case, we see that the base is:
. Solving for r, we see that the radius is
.
The height is twice the radius, so h = 2 * 3 = 6. Now, we have all the necessary values that we can plug into the equation to get the volume:

Thus, the answer is
ft cubed.
Hope this helps!