I believe these might answer your question
6/10
9/15
12/20
The sum of the number above is 690
Answer:
12.56
Step-by-step explanation:
The equation for the area of a circle is πr² (pi x r²). The first step is squaring r, the radius, which is 2. 2²=4. 4 x 3.14= 12.56
Answer:No friend is wrong
Step-by-step explanation: you actually get two answers. After you isolate the absolute value then you take the positive and negative number of what it's set equal too.
|3x + 8| - 9 = -5 add 9 to isolate the absolute value
|3x + 8| = 4
Now set two equations because the abosulte value has two answers.
|3x + 8| = 4. and |3x + 8| = -4
Solve these by removing the absolute value bars.
3x = -4. 3x = -12
x = -4/3. X = -4
Factor out the gcf first.
3(4y^2-9)
The binomial inside is a perfect square so keep factoring.
3(2y+3)(2y-3)
The pair of binomials cannot be further factored so stop there.