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svlad2 [7]
2 years ago
10

The floor of a skating rink is circular and has a radius of 14 meters. What is the

Mathematics
2 answers:
Volgvan2 years ago
7 0
A=pi(radius^2)
3.14(14^2)
Area= 615.75 square meters
Lerok [7]2 years ago
4 0

Answer:

Step-by-step explanation:

615.75m squared

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Need help with factoring, x squared minus 8x +15
wariber [46]

Answer:

(x-3)(x-5)

Step-by-step explanation:

X^2-8x+15

Break the expression into groups

(x^2-3x)+(-5x+15)

Factor out x from x^2-3x

Factor out -5 from -5x+15: -5(x-3)

=x(x-3)-5(x-3)

Factor out common term x-3

=(x-3)(x-5)

Thanks for letting me help!!

7 0
3 years ago
A zipline is constructed over a ravine as shown in the diagram at the right. What is the horizontal distance from the bottom of
Katyanochek1 [597]

Answer: X= 284.04

To solve for x, you must first find the missing angle in the left corner. I will name it "< Y" (Angle Y)

2

Sin50/250 = SinY/60

Set up your problem, then cross multiply.

3

60(Sin50)= 250(Sin Y)

60(Sin50)/250= Sin Y

After cross multiplying, you should be left with this. You then cancel out 250 by dividing it on both sides to get Sin Y by itself.

4

Sin Y = 0.183

Y= Sin-1 x 0.183

This is what it solves out to.

Now you cancel out Sin on both sides, and it should look like the bottom problem.

5

Y= 10.5

This is now your answer to plug into the problem needed to solve for X.

6

Now because you have 2 out of 3 angles, you can solve for the missing angle that lays opposite to x. ( in SOHCAHTOA you need the OPPOSITE and the HYPOTENUSE. The Hypotenuse is originally give, but we had to do extra solving to find the Opposite's degree.)

7

Because degree's in a triangle add to 180, we will add 50 degrees + 10.5 degrees to get 60.5 degrees. Now subtract 60.5 from the full 180 degrees and we get 119.5 degrees as the missing number that lays opposite from X. Now we can solve for X.

8

(Sin 119.5)/x = (Sin 50)/250

Set up your final problem as so and cross multiply.

9

X(Sin 50) = 250(Sin 119.5)

X = 250(Sin119.5)/(Sin50)

After cross multiplying, the problem should look like the one at the top. Cancel out Sin 50 to get X by itself by dividing both sides by Sin 50, then solve for X.

Step-by-step explanation:

8 0
3 years ago
Why does Y equals 5X plus one have a bigger slope then y equals 2X +5
jolli1 [7]
Slope intercept form is y = mx + b, where m is the slope. 5 is greater than 2 so that’s why y = 5x + 1 has a greater slope than y = /x + 5
5 0
3 years ago
The double number line shows that to make 4 apple pies takes 14 pounds of apples.Select the double number line that correctly la
Svetradugi [14.3K]

Answer:

10.5 pounds of apples

Step-by-step explanation:

4 devided by 14 = 3.5

3.5* 3 = 10.5

6 0
2 years ago
Pls give the answer with step by step explanation... :)​
Rina8888 [55]

Answer:

Step-by-step explanation:

so you do 1150 x 115% to give you the answer and then you get the answer of that and take away 1150 and you should get your answer

4 0
2 years ago
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