A circular piece of metal has a radius of 3.5 meters. The metal sells for $3.25 per square meter.
What is the total cost of the circular piece of metal?
A.
$11.38
B.
$38.47
C.
$71.44
D.
$125.01
Answers
Use the formula for finding the area of a circle, then multiply it by each square meter.
A = π r²
A = π (3.5)²
A = 12.25π
A = 38.485
C = 3.25(38.485)
C = 125.01
Answer = $125.01
Radius, r = 3.5m,
Area = πr² = π*3.5*3.5 = 12.25π m²
Area ≈ 12.25 *3.141 ≈ 38.477 m²
Since the metal sells for $3.25 per square meter.
Total cost for 38.477 m² = 38.477 * 3.25 = 125.05
Answer is = $125.05
The answer is not really there, but let's say we can manage option D which is $125.01.
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6=k(-4)
6/-4 = k
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- 3x + 8y = 5
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Answers
-3x + 8y = 5
6x - 2y = 10
According to equation 2,
6x - 2y = 10
6x = 10 + 2y
thus, x = 10 + 2y / 6
substituting the value of x in equation 1,
-3 ( 10 + 2y / 6) + 8y = 5
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Thus, y = 30.
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Thus, x = 70/6.
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Answers
30 x 5,280 = 158400
Now let's find how many feet the first person runs per minute.
158400/60 = 2640
The first person runs 2,640 feet per minute, and the second person runs 3,520 feet per minute.
Since the second person runs fast, let's find by how many miles per hour they're faster than the first person.
3520-2640 = 880
How many miles is 880 feet?
5280/880 = 0.17
The second person runs faster by 0.17 miles per hour.
Hope this helps! :)
CORRECTION: "A white-tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute. Which animal is faster and by how many miles per hour? There are 5,280 feet in one mile. "
OPTIONS:
A: A deer is 10 miles per hour faster than a bison.
B: A bison is 10 miles per hour faster than a deer.
C: A deer is 0.66 miles per hour faster than a bison.
D: A bison is 0.66 miles per hour faster than a deer.
This is what you meant right!? ^^^
I've done this Question before, so i'll Help You Then!
We 1st off, have to convert the ft/min speed into miles/hour:
3520 feet ... 1 mile ..... 60 minutes ... 3520 x 60 miles
-------------- x ------------- x ---------------- = ---------------
1 minute ... 5280 feet .... 1 hour .......... 5280 hours
= (3520 * 60) / 5280
= 40 miles/hour
The Correct Answer Is:
B. The bison is 10 miles per hour faster than a deer.
Hope this Helps! Have A Wonderful Day! :)
Answers
Answers
Answer:
Step-by-step explanation:
The given system of equations is
Plugging the value of x from (ii) in equation (i) and find the value of y
Therefore, the solution of the system of equations is
Answers
Answer: Option 'a' is correct.
Step-by-step explanation:
Since we have given that ∠NSM,
we need to find is vertical angles of ∠NSM,
1) ∠OSL is a vertical angle of ∠NSM as it has one common vertex and all other are collinear points.
2) ∠SMN can't be vertical angle as vertical angles must be equal at common vertex but it does not do that it forms angle on M rather than on S.
3) ∠SNM can't be vertical angles as vertical angles must be equal at common vertex but it does not do that it forms angle on N rather than on S.
4) ∠OSN can't be vertical angle as vertical angles must have only one common vertex but in this case it has two common vertex i.e. S and N. so it will be linear pair.
Hence, Option 'a' is correct.