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DerKrebs [107]
3 years ago
5

kelly wants to build a pacman shaped pool in her back yard pictured to the right (3/4 of a circle). she needs to have a gate aro

und the entire pool because of city requirements. if the radius of the pool is 20 feet, what amount of fencing will she need to go around the pool? use 3.14 for pi and round your final answer to the nearest tenth of a foot.
Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0
You need to find the circumference of the whole circular pool and then subtract from it the arc length that is 1/4 of the circumference.  The circumference formula is C = (3.14)(d), which in our case is 3.14(40) which is 125.6.  Now we need the arc length we need to take away.  1/4 of a circle corresponds to a 90 degree angle, so in the formula for arc length, we have this: \frac{90}{360} (3.14)(40) which equals 31.4.  Now subtract that from the circumference of the whole circle and you get the outside of the circle minus that arc length.  That's 94.2.  But we have to go in the radius times 2 to enclose the pie shaped piece we cut away.  So we have 134.2.  She should've just stuck with enclosing the circle; she would have used less fencing!
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Answer:

The solution in the attached figure

One possible solution is the point (30,60)

Step-by-step explanation:

Let

x -----> represents the number of tacos sold

y -----> represents the number of burritos sold

we know that

------> inequality A

-----> inequality B

using a graphing tool

The solution is the triangular shaded area

see the attached figure

One possible solution is the point (30,60)

Remember that if a ordered pair is a solution of the system of inequalities, then the ordered pair must lie on the shaded area of the solution

so

That means----> The number of tacos sold is 30 and the number of burritos sold

Verify

Substitute the value of x and the value of y in each inequality

Inequality A

----> is true

Inequality B

----> is true

The ordered pair satisfy both inequalities, then the ordered pair is a solution of the system

Read more on Brainly.com - brainly.com/question/13301815#readmore

Step-by-step explanation:

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3 years ago
What is the equation of the line with a slope of 4/3 and y-intercept of -6
skelet666 [1.2K]

Answer:

y=4/3x-6

Step-by-step explanation:

y=mx+b

m= 4/3

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6 0
3 years ago
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Assuming that the number cube is 6 sided

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Multiply the two fractions together

1/6 x 1/2 = 1/12

1/12 is your probability

hope this helps

4 0
3 years ago
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I think it would be C in my cass

Step-by-step explanation:

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