The answer you are looking for is 3.5+3.5. This is because a doubles fact are any two of the same numbers that are added together.
Answer:
1. a cannot equal 8 and 9.
2. B cannot equal 14 and 15.
3. No, because it is equal to 5, and the inequality says that it is strictly less than 5.
4. Yes. 8 times 3 is 24, which is less than 32.
Step-by-step explanation:
You basically plug the numbers in, and see if they could be true.
Answer:
Step-by-step explanation:
2x + 9 = 15
you move + 9 to the other side of the equation, you will get:
2x = 15 - 9
2x = 6
So, x = 3
A = (1/2) b * h
h = b - 5
42 = (1/2) * b * (b - 5)
42 = (1/2) * b^2 - 5b
multiply both sides by 2 to clear the fraction (1/2)
2(42) = 2(1/2) *b^2 - 5b
84 = b^2 -5b
Since this is a quadratic equation, subtract 84 from both sides so that it is set = to zero.
b^2 - 5b - 84 = 0
Now factor.
(b - 12)(b + 5) = 0
b - 12 = 0; b = 12
b + 5 = 0; b = -5
You can't have a negative length so the answer is 12m
To check the answer:
A = (1/2) * 12* 7
A = 42 m^2
Answer:
The answer is A
Step-by-step explanation:
when you see x and y side by side in a table, each row is one point on a graph. hope this helps!