<span>Simplifying
5x2 + -35 = 0
Reorder the terms:
-35 + 5x2 = 0
Solving
-35 + 5x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '35' to each side of the equation.
-35 + 35 + 5x2 = 0 + 35
Combine like terms: -35 + 35 = 0
0 + 5x2 = 0 + 35
5x2 = 0 + 35
Combine like terms: 0 + 35 = 35
5x2 = 35
Divide each side by '5'.
x2 = 7
Simplifying
x2 = 7
Take the square root of each side:
x = {-2.645751311, 2.645751311}</span>
Answer:
4??
Step-by-step explanation:
Although, philosophers would love to give you a different answer (like 5)
Product means multiply
d is the variable, the depth of the river
so product of 86 and depth is 86 times d or 86*d
A prism with square bases is just a square prism.
The volume of a rectangular prism is equal to its width times its length times its height. Since the base is a square, we can just say it's equal to the base squared times the height. Let's set up a formula, plug and chug.
So we are starting out with 30 messages.
If 1/5 of the messages Lily receives are picture messages, then take 1/5 x 30 to find out how many that is.
1/5 x 30 = 30/5 = 6. So Lily receives 6 picture messages.
If 7/8 of the remaining messages are texts, then we need to find the number of remaining messages. If 6 are pictures and she receives 30 overall, then 30 - 6 = 24, the remaining number of messages. Since we know 7/8 of <em>this </em>number is the number of texts Lily received, let's do some more multiplication:
7/8 x 24 = (7 x 24)/8 = 168/8 = 21.
So Lily received 21 text messages, 6 picture messages, and 3 of something else!