7*(15-a) = -56
Divide both sides by 7
15-a = -8
Subtract 15 from both sides
-a = -23
Divide both sides by -1
a = 23
Hope that's correct for you and it helps!!
It is <span>the commutative property of addition:
a + b = b + a
</span>
The quadratic equation for this would be f(x) = 5x^2 - 10x - 120.
In order to find that, we need to start by taking our x intercept values and setting them equal to zero.
x = 6 ----> subtract 6 from both sides
x - 6 = 0
x = -4 ----> add 4 to both sides
x + 4 = 0
Now that we have both of these zero terms, we can multiply them to get a standard form.
f(x) = (x - 6)(x + 4)
And while this will give us the zeros we need, it will no give us the lead coefficient. So we must multiply by the desired lead coefficient.
f(x) = 5(x - 6)(x + 4)
f(x) = 5(x^2 - 6x + 4x - 24)
f(x) = 5(x^2 - 2x - 24)
f(x) = 5x^2 - 10x - 120
Answer:
9
Step-by-step explanation:
You can convert 2/3 to 6/9 by multiplying the numerator and denominator by 3, so that both fractions could have the same denominator
The answer is C 24 0.5- liter bottles for 5.25
First, add up how many full liters are in each answer
a - 2 liters
b - 3 liters (3 + 1 = 3)
c- 12 liters (24 x 0.5 = 12)
d - 9 liters (36 x 0.25 = 9)
So now you know how many liters of water you’re getting for what price which is
a. 2 liters for .89
b. 3 liters for 1.50
c. 12 liters for 5.25
d. 9 liters for 4.75
Now, you must divide the price by how many liters you’re getting to know how much each liter cost by itself.
a- .89 divided by 2 = .45 cents a liter
b- 1.50 divided by 3 = .50 cents a liter
c- 5.25 divided by 12 = about .44 cents a liter
d- 4.75 divided by 9 = -about .52 cents a liter
So by the information, the cheapest and best deal would be answer C because it cost the least for 1 liter (.44 cents)