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lara31 [8.8K]
3 years ago
8

A ship travels 10 miles from Point A to Point B, makes a turn of 112, and travels 16 miles to Point C. If the ship travels direc

tly from Point C back to Point A, how many miles will it travel on the last leg of the trip (from Point C to Point A)? Round your answer to the nearest tenth of a mile.
Mathematics
1 answer:
marin [14]3 years ago
8 0
This is Pythagorean's Theorem, with one leg being 10 and the hypotenuse being 16.  Using those values in the theorem looks like this:
10^{2} + b^{2} = 16^{2}
and 100+ b^{2} =256
and b^{2} =256-100
so b^{2} =156
Take the square root of both sides to find that b = 12.5
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What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie
svetlana [45]

Answer:

radius = 5 in

Step-by-step explanation:

Using the formula for calculating the area (A) of a circle

A = πr² ( r is the radius )

here A = 78.5, hence

3.14r² = 78.5 ( divide both sides by 3.14 )

r² = \frac{78.5}{3.14} = 25 ( take the square root of both sides )

r = \sqrt{25} = 5


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3 years ago
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Solve the following function for y when x=5 round to the nearest tenth
Wittaler [7]

In the given question , we have a function given , which is

y= 13(0.5^x)

And we need to find the value of y when x=5.

So we substitute 5 for x and solve for y, that is

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And on rounding to the nearest tenths, we will get

y=0.4

So when x=5, y=0.4

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3 years ago
Can someone help me with this please
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16

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2 years ago
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In the figure, m<2 = 44. What is the measure of <1?
fredd [130]

Answer:

m∠1 = 112°

Step-by-step explanation:

To solve for m∠1, we need to find the supplementary angle and subtract from 180°.  We also know that m∠2 = 44° and the remaining two angles inside the triangle are the same because of the congruent sides, let's call each angle x.

Therefore m∠2 + x + x = 180; combine x's

m∠2 + 2x = 180; substitute m∠2 = 44°

44 + 2x = 180; subtract 44 from both sides

2x = 136; divide by 2

x = 68°

Therefore using the supplementary angle

x + m∠1 = 180 (because it is supplementary)

68 + m∠1 = 180; subtract 68 from both sides

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7 0
2 years ago
A plane flies with an average velocity of -98.5 m/s for 45.0s what was its displacement
svet-max [94.6K]

Answer:

  -4432.5 m . . . or . . . -4.4325 km

Step-by-step explanation:

You can use the formula for average velocity, fill in the given values, and solve for displacement.

  average velocity = displacement/time

  -98.5 m/s = displacement/(45 s)

Multiply by time:

  (-98.5 m/s)(45 s) = displacement = -4432.5 m

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Keeping units with the numbers serves as a check on the math. (m/s)·s = m. The units work the same way variables do: they can be multiplied and divided, raised to a power, canceled. If the units of the problem don't work out right, you're probably doing it wrong. (Note, you can only add and subtract numbers that have the same (identical) units--the same rule as for combining like terms.)

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3 years ago
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