Answer:
x= -7 x = -4
Step-by-step explanation:
x^2 + 11x + 28 = 0
What two numbers multiply to 28 and add to 11
7*4 = 28
7+4 =11
(x+7) (x+4) =0
Using the zero product property
x+7 =0 x+4 =0
x= -7 x = -4
Answer:
What is 10% of 120?
Step-by-step explanation:
120 / 10 = 12
10% of 120 = 12
We have a match.
Let's do the others, just to be sure it's the only one.
10% of 12 = 1.2
25% of 120 = 30
25% of 120 = 3
The range is the highest number minus the lowest number
98 - 13 = 85 <==
Answer:
Step-by-step explanation:
So if you count the length, and width then times them then you will get the right answer.
This is equal to:
When you add a negative number, it turns into subtraction.
First, I would change it to mixed numbers:
Now, you need to change the denominators to make sure they are the same on both fractions. I changed the first fraction's denominator to 4 so they match. You can do this by multiplying the numerator by 2:
Now, you simply subtract:
10-9=1
1/4 is your answer.
I hope this helps :)
