Answer:
hope this will help you ( ◜‿◝ )♡
Step-by-step explanation:
lateral surface area of the solid=ph
=(a+b+c)*h
=(5+4+3)*15
=12*15
=180cm²
Answer:
-y + 63
Step-by-step explanation:
Let's start like by solving the order of operations, and then add our Y's:
7y + 7 + −8y + 56
Adding:
+63 - y
Simplifying:
-y + 63
Thus, our answer is -y + 63
Answer:
$47
Step-by-step explanation:
$120 starting out and he spent $45 + $28 of that $120
so 120-45+28=47
I assume you're asked to solve
4 cos²(<em>x</em>) - 7 cos(<em>x</em>) + 3 = 0
Factor the left side:
(4 cos(<em>x</em>) - 3) (cos(<em>x</em>) - 1) = 0
Then either
4 cos(<em>x</em>) - 3 = 0 <u>or</u> cos(<em>x</em>) - 1 = 0
cos(<em>x</em>) = 3/4 <u>or</u> cos(<em>x</em>) = 1
From the first case, we get
<em>x</em> = cos⁻¹(3/4) + 2<em>nπ</em> <u>or</u> <em>x</em> = -cos⁻¹(3/4) + 2<em>nπ</em>
and from the second,
<em>x</em> = <em>nπ</em>
where <em>n</em> is any integer.
8 batches is the maximum that you can make because 20 divided by 2 1/3 = 8.571428...
