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Keith_Richards [23]
4 years ago
15

You ask an employee to string holiday lights around the perimeter of a circular room. The room is 30 feet in diameter. How many

feet of lights will she need? (Round to the nearest foot.)
Mathematics
1 answer:
s2008m [1.1K]4 years ago
7 0

Answer:

94 feet

Step-by-step explanation:

The equation for perimeter of a cricle is

C=2πr

fill in what we know, which is radius, because radius is 1/2 the diameter

C=2π15

answer is 94.25 so we can round down to 94

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Help please just answer would be fine
scZoUnD [109]

The amount of water decreases 16\frac{1}{2} pints in 12 weeks.

Solution:

The amount of water decreases in 7 weeks = 9\frac{5}{8} pints

The amount of water decreases each week is same.

Let us first change the mixed fraction into improper fraction.

9\frac{5}{8} pints = \frac{(9\times8)+5}{8}

             =\frac{77}{8} pints

The amount of water decreases in 1 week

              $=\frac{\frac{77}{8} }{7}

              =\frac{77}{8\times7}

              =\frac{11}{8}

So, the amount of water decreases in 1 week is \frac{11}{8} pints.

The amount of water decreases in 12 week

               =\frac{11}{8}\times12

               =\frac{132}{8}

               =16\frac{4}{8}

               =16\frac{1}{2} pints

Hence the amount of water decreases 16\frac{1}{2} pints in 12 weeks.

4 0
3 years ago
What is the answer? Please! ill mark brainliest!
Olin [163]
B, because the mid segment is half the length of the third side
4 0
3 years ago
If AB is parallel to CD and the slope of CD is-5, what is the slope of AB?
ankoles [38]

Answer:

C. -5

Step-by-step explanation:

If the two lines are parallel, they have the same slope. Therefore the slope of AB is -5.

5 0
3 years ago
Write the equation in standard form for the circle that has a diameter with endpoints (- 1, 12) and (- 1, 8)​
matrenka [14]

Answer:

The equation in standard form is (x + 1)^{2} + (y - 10)^{2} = 4

Step-by-step explanation:

The distance from (-1, 12) to (-1, 8) = 4 = diameter of the circle.  So, 2 = radius

The center of the circle is at (-1, 10)

The equation in standard form is (x + 1)^{2} + (y - 10)^{2} = 4

3 0
3 years ago
What is 70 divided by 7 1/2
Tresset [83]

Answer:

9.333333 (repeating decimal)

5 0
3 years ago
Read 2 more answers
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