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zheka24 [161]
3 years ago
11

Andy wants to be able to do a 180 degree turn on his skateboard. He can now do a 120 degree turn. How many more degrees does he

need to meet his goal?
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0

Answer: 60^{\circ}

Step-by-step explanation:

Given

Andy wants to turn 180^{\circ} on his skateboard

Currently, he can make a turn of 120^{\circ}

The difference between the required and current turn degree meets his goal i.e.

\Rightarrow 180^{\circ}-120^{\circ}\\\Rightarrow 60^{\circ}

Thus, he needs to turn by 60^{\circ} to meet his goal

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LenaWriter [7]
By looking at your question and answers i have determined that D. A ray is the correct answer
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3 years ago
A spinner is divided into 4 equal sections. Which of the following are true?
Alborosie
The number 4 is the correct answer.
5 0
3 years ago
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The mean of five numbers 3,7,9,12, and x is 8. Find the value of x
jeyben [28]
Answer:  " x = 9 "  .
____________________________________
Explanation:
____________________________________
To calculate the mean:
____________________________________
The mean = 

     {the sum of all the values in the number set} ÷ 

     {the number of values in the data set} ;
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 To solve for "x" ;
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Given that the "mean" is:  "8" ;
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            8  =  { 3 + 7 + 9 + 12 + x }  /  5  ;
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    ↔  { 3 + 7 + 9 + 12 + x }  /  5   =  8  ;
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            →  { 3 + 7 + 9 + 12 + x }  = 8 * 5  ;
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            →  { 31 + x } = 40  ;
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            ↔   x + 31  = 40  ;
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       Subtract "31" from EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x" ;
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            →   x + 31 − 31  =  40 − 31  ;

                       →  x = 9  .
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7 0
3 years ago
Determine the time necessary for P dollars to double when it is invested at interest rate r compounded annually, monthly, daily,
kipiarov [429]

9514 1404 393

Answer:

  • annually: 9.01 years
  • monthly: 8.69 years
  • daily: 8.67 years
  • continuously: 8.66 years

Step-by-step explanation:

For interest compounded in discrete intervals, the formula is ...

  A = P(1 +r/n)^(nt)

We want to find t for P=1 and A=2, so we have ...

  2 = (1 +r/n)^(nt)

  ln(2) = nt·ln(1+r/n)

  t = ln(2)/(n·ln(1+r/n))

A table of values for r=0.08 is attached.

__

For continuous compounding, the formula is ...

  A = Pe^(rt)

  t = ln(A/P)/r = ln(2)/0.08 ≈ 8.66434 . . . . years

__

  • annually: 9.01 years
  • monthly: 8.69 years
  • daily: 8.67 years
  • continuously: 8.66 years

5 0
2 years ago
Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
cestrela7 [59]

Answer:

x = √47

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

<u>Trigonometry</u>

  • [Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

<u>Step 1: Define</u>

We have a right triangle. We can use PT to solve for the missing side length.

<u>Step 2: Identify Variables</u>

Leg <em>a</em> = 5

Leg <em>b </em>= <em>x</em>

Hypotenuse <em>c</em> = √72

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Substitute [PT]:                    5² + x² = (√72)²
  2. Exponents:                           25 + x² = 72
  3. Isolate <em>x</em> term:                      x² = 47
  4. Isolate <em>x</em>:                               x = √47
8 0
3 years ago
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