Answer:
Circle B:
Circle F:
Step-by-step explanation:
We can write the equation of a circle equation with center on (h,k) and radius r as:
Then, we analyze the circle will have for the circle B:
- It has a center in x=-4 and y=-3.
- It radius can be calculated from the distance from the center (x,y)=(-4,-3) to one of its points (x,y)=(-4, -1). Then, its radius is r=2.
Then, we can write the equation as:
we analyze the circle will have for the circle F:
- It has a center in x=4 and y=1.
- It radius can be calculated from the distance from the center (x,y)=(4, 1) to one of its points (x,y)=(0, 1). Then, its radius is r=4.
Then, we can write the equation as:
Answer:
Step-by-step explanation:
Givens
<em>Student A</em>
d = 3/4 mile
t = 6 minutes
<em>Student B</em>
d = 1/2 mile
t = 5 minutes
Note
In both cases, the units are the same, so unit conversion is not necessary.
Solution
<em>Student A</em>
r = d / t
r is the rate of travel in miles / minute
r = 3/4 / 6
r = 3.4 // 6/1 The 1 is put below the 6 so it is easier to divide. Invert the bottom and multiply.
r = 3/4 * 1/6
r = 3/24
r = 1/8 miles / minute
<em>Student B</em>
r = d / t
r = 1/2 // 5 / 1 Turn the bottom fraction upside down and multiply
r = 1/2 * 1/5
r = 1/10
Question
which is bigger: 1/8 or 1/10?
1/8 = 0.125
1/10 = 0.1
1/8 is bigger by 0.025
Answer
Student A is faster by 0.025 miles / minute.
Answer:
-2x-5
Step-by-step explanation:
By distributing the -2 to the x+10 we get, "-2x-5". This is our final simplified answer.
Answer:
x=<u>1</u>
2
hope it helps
Step-by-step explanation:
–1
x=0.5,x=2
Answer:
the scale factor is greater than 1
hope this helps!:)
