The answer is D.
1 sq ft = 1 ft x 1 ft
= 12 in x 12 in
1 sq ft = 144 sq in
5 sq ft = 144 * 5 = 720 sq in.
ANSWER
B.
EXPLANATION
The volume of a cone is calculated using the formula:
where r=4 units is the base radius of the cone.
and h=21 units is the vertical height of the cone.
We plug in the values to get;
Answer:
Step-by-step explanation:
Let us assume that she makes 10 minutes of call.
Telecorp has a flat rate of 7 cents per minute. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is
0.07 × 10 = $0.7
America's charges 25cents per call. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is $0.25
Phone busters charges 35 cents per call and 2 cents per min. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is
0.35 + 10 × 0.02
= 0.35 + 0.2
= $0.55
The cheapest service is that of America's. Therefore, she should choose it.
Distribute the 32 to the 4x and -2, so you have 128x-64-3x=5-(x+2), then you distribute the “-“ sign to x and 2 so on the right you have 5-x-2. All together you have 128x-64-3x=5-x-2. Combine like terms on both sides so you have 125x-64=-x+3. Add 64 to both sides so you got 125x=-x+67. Also add x on both sides, so your final equation is 126x=67. This doesn’t come out to an even number but it’s ok, your answer in decimal is about 0.532 rounded to the thousandths and if you want a fraction it’s simply 67/126. I’m sorry if this answer isn’t correct I did this in my head.
Answer:
Step-by-step explanation:
Since you have
+
5
y
in one equation and
−
5
y
in the other equation, you can add both equations to cancel out the y terms and solve for x.
−
6
x
+
5
x
=
−
x
5
y
−
5
y
=
0
1
+
10
=
11
therefore
−
x
=
11
multiplying both sides by -1:
x
=
−
11
plugging this back into the first equation:
−
6
(
−
11
)
+
5
y
=
1
66
+
5
y
=
1
subtracting 66 from both sides:
5
y
=
−
65
divide both sides by 5:
y
=
−
13
putting the x-values and y-values into one point gives:
(
−
11
,
−
13
)
as the solution