1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11Alexandr11 [23.1K]
2 years ago
9

A board game has a spinner divided into sections of equal size(10). Each section is labeled a number between 1-5. Which number i

s a reasonable estimate of the number of spins on a section labeled 5 over the course of 150 spins?
A(15)
B(25)
C(40)
D(60)
Mathematics
1 answer:
vovikov84 [41]2 years ago
6 0
The answer is C. 40 or maybe d
You might be interested in
Part A: The area of a square is (4x^2 - 12x + 9) square units. Determine the length of each side of the square by factoring the
AlexFokin [52]

Answer: Area = side²

If Area = 4x² + 12x + 9, then the side is the √(4x² + 12x + 9)

Let’s factor 4x² + 12x + 9

What two numbers multiply to be 36 (which came from 4 * 9) add up to be 12?

6 and 6 are the two numbers, because 6 * 6 = 36, and 6 + 6 = 12.

We can break 4x² + 12x + 9 into (4x² + 6x) + (6x + 9)

Factor 4x² + 6x, the greatest common factor is 2x, so the 2x goes on the outside, leaving us with 2x + 3 on the inside, so that gives us 2x * (2x + 3).

Factor 6x + 9, the greatest common factor is 3, so the 3 goes on the outside, leaving us with 2x + 3 on the inside, that gives us 3 * (2x + 3).

Now we have the 4x² + 12x + 9 written as 2x (2x + 3) + 3 (2x + 3). Since we now have a common factor, 2x + 3, we can combine them by adding 2x (2x + 3) + 3 (2x + 3) as like terms, so we now have (2x + 3) * (2x + 3).

We can simplify (2x + 3)(2x + 3) into (2x + 3)².

There. The simplest factored form of 4x² + 12x + 9 is (2x + 3)²

Ok, the Area = (2x + 3)²

Let’s solve for the side

(2x + 3)² = side²

square root both sides and take the positive root

side = √(2x + 3)²

side = 2x + 3

The side length is: 2x + 3 units

I hope you get a good grade lol :)

Step-by-step explanation:

3 0
2 years ago
Someone help me with my algebra homework please
Alla [95]

Answer:

15

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
  • Subtraction Property of Equality<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

5a - 10b = 45

<em>b</em> = 3

<u>Step 2: Solve for </u><em><u>a</u></em>

  1. Substitute in <em>b</em> [Equation]:                                                                                5a - 10(3) = 45
  2. Multiply:                                                                                                             5a - 30 = 45
  3. [Addition Property of Equality] Add 30 on both sides:                                  5a = 75
  4. [Division Property of Equality] Divide 5 on both sides:                                  a = 15
7 0
3 years ago
Read 2 more answers
Given that h(x) = 3x −19, find the value of x that makes h(x) = 71.
rosijanka [135]

Keywords:

<em>Equation, variable, value, clear </em>

For this case we have an equation with a variable of the form y = h (x). Where h (x) = 3x-19. Given the value ofh (x) = 71, we want to find the value of the variable "x". So, we have:

h (x) = 3x-19\\71 = 3x-19

We must clear "x", for this, we add "19" to both sides of the equation:

71 + 19 = 3x-19 + 19\\90 = 3x

We divide between "3" on both sides of the equation:

\frac {90} {3} = \frac {3x} {3}\\30 = x

Thus, the value of the variable "x" is 30.

Answer:

x = 30

Option A

6 0
2 years ago
Read 2 more answers
PLEASE HELP FAST! What is the distance between the two points located at (14, 27) and (14, −8)? this is in units.
KIM [24]

Answer:

13

Step-by-step explanation:

13

3 0
2 years ago
Read 2 more answers
An item is priced at $13.26. If the sales tax is 5%, what does the item cost including sales tax?
mezya [45]

Answer:

13.92$

Step-by-step explanation:

13.26 times .05 (sales tax)

.66 + 13.26 = 13.92

7 0
3 years ago
Read 2 more answers
Other questions:
  • The valué of the digital 8 in this 80 the valué of the digit 7 in this number is not 7
    10·1 answer
  • Simplify 3j - {2k - [5h - (3j k)]}.
    10·1 answer
  • Given:
    6·2 answers
  • I need help with finding x, y, and z.
    15·1 answer
  • What is the greatest common factor of 36 and 27
    8·1 answer
  • The product of 2 mixed numbers that are each between 4 and 5 is between 16 and 25. true or false?
    10·1 answer
  • WX is parallel to YZ. If the measure of
    5·1 answer
  • Consider the following theorem. Theorem If f is integrable on [a, b], then b a f(x) dx = lim n→[infinity] n i = 1 f(xi)Δx where
    12·1 answer
  • 7) There are 90 boys and 60 girls in the Cobb 6th grade campus band. Of these band members 9 boys and 3 girls play the trumpet.
    9·1 answer
  • Hello please help i’ll give brainliest
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!