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Phantasy [73]
3 years ago
9

f sinx is approximately 0.2588, what is the measurement of x to the nearest degree? Approximately, what is the cosine of the ang

le that is complementary to x?
Mathematics
1 answer:
AysviL [449]3 years ago
3 0
There are buttons on all scientific calculators for inverse trig functions.

Usually denoted as "arcsin, arccos" or with a little -1 inverse sign like this:
 sin^{-1} (0.2588) = 14.99

You put in the measurement and it gives back the angle. I

angle x = 15°

complimentary angles add up to 90° so the angle that's complimentary is 90-15 = 75°
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4 years ago
In a group of 60 numbers, average of
Arada [10]

Answer:

c. 18

Step-by-step explanation:

First, you would find the total sum of the 60 numbers. The average is always the sum of the numbers divided by the number of numbers.

35*18=630

15*10=150

Now we do not know how many numbers the last group has. However, we can find it out doing 60-35-15 to see how many numbers are left. There would be 10 numbers left

10*30=300

630+150+300=1080

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Hence, the answer is C(18)

4 0
3 years ago
Find all three angles of the triangle x-5 x+10 x-35
Alexus [3.1K]

Answer:

See below ~

Step-by-step explanation:

<u>Given</u> : 3 angles of a Δ

  • (x + 5)°
  • (x + 10)°
  • (x + 15)°

<u>Solving</u> :

  • According to Angle Sum Property of a triangle, the angles of a triangle add up to 180°
  • x + 5 + x + 10 + x + 15 = 180
  • 3x + 30 = 180
  • x + 10 = 60
  • x = 50

<u>Finding the angles</u>

  • x + 5 = 50 + 5 = 55°
  • x + 10 = 50 + 10 = 60°
  • x + 15 = 50 + 15 = 65°
6 0
2 years ago
Use the figure below to find the measure of ∠1.
Dmitrij [34]

Answer:

I think it 85 because it looks the same as 4

Step-by-step explanation:

4 0
3 years ago
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Vesnalui [34]

Answer:

B. 1 1/2 miles

Step-by-step explanation:

He runs daily ten 440-yard laps.

The distance he runs daily is 10 * 440 yd = 4400 yd.

1 mile = 1760 yd

4400/1760 = 2.5

He runs daily 2.5 miles

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2.5 miles - 1 mile = 1.5 miles

Answer: B. 1 1/2 miles

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3 years ago
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