Answer:
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Step-by-step explanation:
To find the volume of the whole, you will use the formula for finding the volume of a cone. V = 1/3 x r^2 x h.
You will first need to find the radius by using the information given about the circumference and the circumference formula.
C = pi x d
44 = 22/7 d
d = 14 feet.
Then use the diameter to find the radius of 7 feet.
V = 1/3 x r^2 x h
1/3 x 7^2 x 3
V = 49 cubic feet
Answer:
Step-by-step explanation:
The car uses 15 gallons of gasoline to drive 420 miles.
(15 gal)/(420 mi) = 1/28 gal/mi
The car uses 1/28 gallon of gasoline per mile.
y = mx + b
When x = 0, at the start of the drive, the car has 15 gallons of gasoline.
y = mx + 15
Then for every mile it travels, the amount of gasoline goes down by 1/28 gal. For x miles of travel, it uses 1/28 * x gallons of gasoline.
Answer:
D. 17.4%
Step-by-step explanation:
To find a percent, divide the part by the whole and multiply by 100.
The part is the sum of Tim's Chevron and Car:
$23 + $272 = $295 = part
The total is $1695 = whole
percent = part/whole * 100%
percent = 295/1695 * 100%
percent = 0.174041 * 100%
percent = 17.4%
Answer: D. 17.4%
X + (7 - 3i) + (5 + 9i) + 13i = 10 - 5i
Subtract 13i from both sides
x + (7 -3i) + (5 + 9i) = 10 - 18i
Subtract (5 + 9i). MAKE SURE YOU SUBTRACT 9i TOO. In other words, distribute the negative and subtract 5 and 9i at the same time.
x + (7 - 3i) = 5 - 27i
Do the same with (7 - 3i). You'll be adding 3i since -(-3i) = 3i.
x = -2 - 24i
