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julsineya [31]
2 years ago
9

A swing forward 50 degree and back 95 degree. How many degree forward must the swing go to return in starting position

Mathematics
1 answer:
-Dominant- [34]2 years ago
4 0

Answer:

45°.........................

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Find the volume of each figure to the nearest tenth. show your work
DIA [1.3K]

Answer:

Step-by-step explanation:

first, you need to know the formulas for volumes for a sphere, cone, and cube.

sphere volume is defined: V=4/3πr^3

cone volume is defined: V=πr^2(h /3)

cuboid volume is defined: V=lwh

Then just plug in:

sphere volume=4/3π6^3=904.78

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6 0
3 years ago
A yacht is anchored 90 feet offshore
Stells [14]

The height of the  lighthouse is 44 feet.

<u>Step-by-step explanation:</u>

You are given more information than you need.

Use the right triangle concept,

A yacht is anchored 90 feet offshore from the base of a lighthouse.

  • Base = 90 feet
  • Height = h feet

The angle of elevation from the boat to the top of  the lighthouse is 26 degrees.

<u>Using one side length and the angle only: </u>

The trigonometric formula is given as,

tan = height / base

tan[26º] = h ⁄ 90

 h = 90 × tan[26º]

h = 43.9 ft

h = 44 feet

Therefore, the height of the  lighthouse is 44 feet.

8 0
3 years ago
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4 0
3 years ago
For every $5 tent saved, his his dad will contribute $2 to his saving account. How much will Trent have to put into the account
KonstantinChe [14]

Answer:

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Step-by-step explanation:

Trent contributes 5/(5+2) = 5/7 of the amount in his account. For an amount of $56, he must contribute ...

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7 0
3 years ago
Mark bought a notebook for $1.45 and some pencils for $0.42 each. If the total cost was $6.91, how many pencils did he buy?
Lesechka [4]
B - 13

Okay, we know that Mark brought 1 notebook and the totally is 6.91 while one pencil costs $0.42.

x= number of pencils he brought.
we know the price of 1 notebook + the cost of pencils times the numbers of pencils he brought = total cost.

So the equation will be:

1.45 + 0.42x = 6.91  subtract 1.45 on both sides.
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So the number of pencils he brought is 13.

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2 years ago
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