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LekaFEV [45]
3 years ago
15

Please help me answer this question

Mathematics
2 answers:
kkurt [141]3 years ago
4 0
Pretty sure it’s 71 but I’m not positive. Try it out.
myrzilka [38]3 years ago
3 0

Answer:

71 degrees

Step-by-step explanation:

All angles in a triangle must add up to 180 degrees. If we take that total 180 and subtract 38, we get 142 degrees. If we divide that by two, because the angles are the same, we get 71 degrees. Therefore x=71

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Find the area of the circle. Round to the nearest tenth. Use 3.14 for π. 14 m circle
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Answer:

615.44 m²

Step-by-step explanation:

3.14(14)²= 615.44 m²

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A cylinder shaped water tank has a diameter of 8 m and a height of 20 m. What volume of water does the tank contain when it is 6
dimaraw [331]
The volume of a cylinder is the area of the base times the height
area of the base: 3.14*4² (diameter is 8, so radius is 4)
height: 20
3.14*4²*20=1004.8
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A gym charges $8.75 for each swimming class and a one time registration fee of $12.50. A student paid a total of $56.25. Write a
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12.50 + 8.75x = 56.25

12.50 + 8.75 (5) = 56.23

12.50 + 43.75 = 56.23

Step-by-step explanation:

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4 years ago
Make y the subject of: k=y-1/y
gulaghasi [49]

Answer:

Concept: Algebraic Manipulation

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3 0
3 years ago
A 25-foot ladder leans against a wall. The base of the ladder is 15 feet from the bottom of the wall. How far up the wall does t
motikmotik

Answer: 20 feet.

Step-by-step explanation:

Observe the right triangle attached.

You need to find the value of "x".

Then, you can use the Pythagorean Theorem:

a^2=b^2+c^2

Where "a" is the hypotenuse of the triangle, and "b" and "c" are the legs.

 In this case, you can identify that:

a=25ft\\b=15ft\\c=x

Substitute these values into  a^2=b^2+c^2:

 (25ft)^2=(15ft)^2+x^2

Now, you need to solve for x to find how far up the wall the top of the ladder reaches. Then you get:

x^2=(25ft)^2-(15ft)^2

x=\sqrt{(25ft)^2-(15ft)^2}

x=20ft

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4 years ago
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