MATHEMATICS HIGH SCHOOL

A spinner is divide into 10 equal sections numbered from 1 to 10. You SPIN the spinner once. What is P(5)? A.)1/3
B.)1/2
C.)1/10
D.)1/4

Answers

Answer 1
Answer: The probability of spinning a 5 would be C. 1/10. Since none of the numbers repeat, you have an equal chance at spinning any of the numbers... 1/10.
Answer 2
Answer:

Answer: B: P(not 1)= 10%

Step-by-step explanation:

i put C and it was wrong. showed me B is correct

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Simplify.
n/2-n- 2/n-2.
a. 2-n/n+2
b. 1
c. n+2/2-n
d. -1

Answers

I would choose D I'm not exactly sure though.

Daniel wants to buy cookies for her friends. The area of a cookie is 113.04 in2. What is the circumference of the cookie?

Answers

Answer:

The circumference of the cookie is 37.68 inches.

Step-by-step explanation:

We have,

The area of a cookie is 113.04 square inches.

It is circular in shape. The area of circle is given by :

A=\pi r^2

r is radius of circle

r=\sqrt{(A)/(\pi)} \n\nr=\sqrt{(113.04)/(3.14)} \n\nr=6\ \text{inch}

The circumference of circular shaped object is given by :

C=2\pi r\n\nC=2* 3.14* 6\n\nC=37.68\ \text{inch}

So, the circumference of the cookie is 37.68 inches.

Juan has scores of 85, 83, and 93 on three math​tests. What is Juan’s average test score on these
​math tests?
​​

Answers

Final answer:

To calculate Juan's average math test score, add all the scores together (85, 83, and 93) and then divide by the total number of tests, which is 3. The average score is 87.

Explanation:

The question given is a mathematics problem related to calculating an average. In particular, it is about finding the average test score of Juan's math tests. To find the average of a set of numbers, you add up all the numbers and then divide by the quantity of numbers. In this case, we add the test scores 85, 83, and 93 which gives us a total of 261. Since there are 3 tests, we divide this total by 3. So, Juan's average test score is 261 divided by 3, which equals 87.

Learn more about average here:

brainly.com/question/27193544

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Answer:

80.5

Step-by-step explanation:

to find average you need to first added all your number then divide by how much numbers you added

What is 7.3939393939 (a repeating decimal) written as a fraction?!?!?!?!?!
PLEASE HELP ASAP !

Answers

x=7.393939...\n 100x=739.393939...\n 100x-x=739.393939...-7.393939...\n99x=732\n x=(732)/(99)

What are the solutions of x^2 - 5x+7 = 0 ?​

Answers

Answer:

C.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

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

Algebra I

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: x=(-b\pm√(b^2-4ac) )/(2a)

Algebra II

  • Imaginary Roots: √-1 = i

Step-by-step explanation:

Step 1: Define

x² - 5x + 7 = 0

Step 2: Identify Variables

a = 1

b = -5

c = 7

Step 3: Find solutions

  1. Substitute [Quad Formula]:                    x=(5\pm√((-5)^2-4(1)(7)) )/(2(1))
  2. Evaluate Exponents:                               x=(5\pm√(25-4(1)(7)) )/(2(1))
  3. Evaluate Multiplication:                          x=(5\pm√(25-28) )/(2)
  4. Evaluate Subtraction:                             x=(5\pm√(-3) )/(2)
  5. Factor:                                                     x=(5\pm√(-1) √(3) )/(2)
  6. Simplify:                                                  x=(5\pm i√(3) )/(2)

The solutions to the equation x² - 5x + 7 = 0  are:

x = (5 + i√3) / 2 or x = (5 - i√3) / 2

Option C is the correct answer.

We have,

To find the solutions of the quadraticequation x² - 5x + 7 = 0, we can use the quadraticformula:

x = (-b ± √(b² - 4ac)) / (2a)

For the given equation, the coefficients are:

a = 1

b = -5

c = 7

Substituting these values into the quadraticformula,

x = (-(-5) ± √((-5)² - 4(1)(7))) / (2(1))

Simplifying further:

x = (5 ± √(25 - 28)) / 2

x = (5 ± √(-3)) / 2

Since the discriminant (the value inside the square root) is negative, √(-3) is imaginary, meaning there are norealsolutions to this quadratic equation.

The solutions exist in the complex number system.

So,

√-1 = i

x = (5 ± i√3) / 2

This can be written as,

x = (5 + i√3) / 2

and

x = (5 - i√3) / 2

Thus,

The solutions to the equation x² - 5x + 7 = 0  are:

x = (5 + i√3) / 2 or x = (5 - i√3) / 2

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Solve the equation. x/2 + 2x/3 =5

Answers

x=30/70                                                  it is simple if you think about it 
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