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Viktor [21]
3 years ago
12

Please help, would be greatful :)

Mathematics
1 answer:
lana [24]3 years ago
5 0

Answer:

x ≈ 22.0°

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

<u>Step 1: Identify Variables</u>

Angle θ = <em>x°</em>

Opposite Leg = 3

Hypotenuse = 8

<u>Step 2: Find </u><em><u>x°</u></em>

  1. Substitute [Sine]:                    sinx° = 3/8
  2. Inverse trig:                             x° = sin⁻¹(3/8)
  3. Evaluate:                                 x = 22.0243°
  4. Round:                                     x ≈ 22.0°
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kogti [31]

Answer:

41.2 miles per hour

Step-by-step explanation:

To find the miles per hour you need to find how much they travel each hour. To do this divide 412 by 10. When doing this you get 41.2 miles per hour

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3 years ago
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David received $50 dollars for working at his father’s store. He spent $20 dollars at the movies, and $10 dollars buying comic b
statuscvo [17]
Total amount of money received by David for working at his father's store = $50
Amount of money spent by David at the movies = $20
Amount of money spent by David buying comics books = $10
Amount of money spent by David buying candy = $5
Then
Total amount spent by David = (20 + 10 + 5) dollars
                                               = 35 dollars
Amount of money saved by David = (50 - 35 ) dollars
                                                       = 15 dollars
So
The ratio of the amount of money David
spent to the amount of money David saved = 35:15
                                                                      = 7:3
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3 years ago
Need quick answers please
Olenka [21]

Answer:

A, E, F, D

Step-by-step explanation:

Done this before

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2 years ago
a tree increases in diameter each year by an average of 0.51cm. If the tree currently has a diameter of 4 inches, how old do you
Zepler [3.9K]
There are 2.54 cm in 1 inch.  Since we are estimating, we can round the average growth per year to .5 cm which would give you roughly 5 years per inch of diameter (2.5 / .5 = 5).  Since we have a tree with a 4 inch diameter, we can estimate the age of the tree is...

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3 years ago
PLSSS? i dont really get it<br> Thanks
solmaris [256]

Answer:

A) 83 km/ hour

B) 2/7 penalties / game

C) $16 / CD

D) 9 donuts / box

Step-by-step explanation:

A)

For this question they are asking for the distance traveled in 1 hour.

Since 747km was travelled in 9 hours, we divide 747 by 9 to find the distance travelled in 1 hour

747 ÷ 9 = 83

The unit rate is 83 km/ hour

B)

You have to find the number of penalties per game

Like before divide 10 by 35:

10 ÷ 35 = 10/35 = 2/7

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C)

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64 / 4 = 16

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D)

Find the amount of donuts per box:

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