I think....
x is the radius of your circle
x+7 is going to be your hypotenuse
that’s all i remember
Answer:
D 1 and -1
Step-by-step explanation:

divided by 8

(x+1)(x+1)=0
so x=+-1
In this case the answer is 1/4 because she makes 2 revolutions in 8 minutes. 2/8 = 1/4
Answer:
the spread of data for store B was greater than for store A
Step-by-step explanation
The solution for the first inequality is a ≥ 2 or a ∈ [2, ∞), and for the second inequality the solutions are b < -5 or b ∈ (-∞, -5)
<h3>What is inequality?</h3>
It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
We have two inequalities:
a.) -12a +7 ≤31
b.) -9 > 3b +6
a) -12a +7 ≤ 31
-12a ≤ 31 - 7
-12a ≤ 24
-a ≤ 2
a ≥ 2 (sign changed because multiplied by a negative number)
a ∈ [2, ∞)
b.) -9 > 3b +6
-15 > 3b
-5 > b
or
b < -5
b ∈ (-∞, -5)
Thus, the solution for the first inequality is a ≥ 2 or a ∈ [2, ∞), and for the second inequality the solutions are b < -5 or b ∈ (-∞, -5)
Learn more about the inequality here:
brainly.com/question/19491153
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