Answer:
Step-by-step explanation:
We are given:
Factor:
Difference of Two Squares:
Zero Product Property:
Solve:
Take the square root. Since we are taking an even-root, it requires plus/minus:
Answer:
This is a circle with radius and center .
Step-by-step explanation:
Recall the following:
We are given .
Multiply both sides by :
Reorder on right and simplify on left:
We can now make some replacements from our "Recall" section:
We can probably leave like this, but sometimes we are required to put in a more identifying form.
This is a circle. I'm going to write in the form .
Subtract on both sides:
We are going to fill those "blanks" in so that we can complete the square for the part.
So our equation is that of a circle with radius and center .
Answer:
A: 300 B: Malorie
Step-by-step explanation: Katina's account starts at $200 and increases by $20 each month. Malorie starts at only $100 but increases at a rate of $50 per month. for "A", Katina is 4 months in which equals $280. so, you take Malorie's $50 rate times the 4 months and you get $200. You then add that $200 to the starting $100 to equal $300.
B: 50m>20m. Malorie's monthly rate is listed in the equation as $50. Katina's rate of $20 comes from the $20 increase in her account each month.
Answer:
6 words per minute.
Step-by-step explanation:
48 divided by 8 is 6 .
Answer:
D
Step-by-step explanation:
if it isnt D its B but im pretty sure its D