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
arsen [322]
3 years ago
7

Two students raced their model cars down a track. The first car traveled

Mathematics
1 answer:
Nostrana [21]3 years ago
6 0

The difference in speed is 45-30 = 5 centimeters per second.

5 centimeters per second x 3 seconds = 15 centimeters.

They were 15 centimeters apart

You might be interested in
Proof Pythagorean identities:
dimulka [17.4K]
<h2>Sorry, But I don't know!!</h2>
4 0
3 years ago
25. The perimeter of a rectangle is equal to twice the sum of its length and its width. One
AlexFokin [52]

Answer:

The equation that can be used to find the width is 2(13 + w) = 42

The width of the rectangle is 8 inches

Step-by-step explanation:

The formula of the perimeter of a rectangle is P = 2(l + w), where l is its length and w is its width

∵ One  rectangle has a length of 13 inches

∴ l = 13 inches

∵ Its perimeter is 42 inches

∴ P = 42 inches

- Substitute the values of l and P in the formula of the perimeter

∵ 42 = 2(13 + w)

The equation that can be used to find the width is 2(13 + w) = 42

To find W divide both sides by 2

∴ 21 = 13 + w

- Subtract 13 from both sides

∴ 8 = w

The width of the rectangle is 8 inches

7 0
3 years ago
What is the surface area of a cube whose edges are 11 inches long?
Pepsi [2]
11 * 11 * 6 = 726 square inches
7 0
3 years ago
What is the difference?
Crazy boy [7]

Answer:

<h2>D. \frac{x^{2}+3x-12 }{(x-5)(x+3)(x+7)} \\ or StartFraction x squared + 3 x minus 12 Over (x + 3) (x minus 5) (x + 7) EndFraction</h2>

Step-by-step explanation:

Given the expression \frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }, the dfference is expressed as follows;

Step1: First we need to factorize the denominator of each function.

\frac{x}{x^{2}-2x-15 } - \frac{4}{x^{2} + 2x - 35 }\\= \frac{x}{x^{2}-5x+3x-15 } - \frac{4}{x^{2} + 7x-5x - 35 }\\= \frac{x}{x(x-5)+3(x-5) } - \frac{4}{x( x+ 7)x-5(x +7) }\\= \frac{x}{(x-5)(x+3) } - \frac{4}{(x-5)(x +7) }\\\\

Step 2: We will find the LCM of the resulting expression

=  \frac{x}{(x-5)(x+3) } - \frac{4}{(x-5)(x +7) }\\= \frac{x(x+7)-4(x+3)}{(x-5)(x+3)(x+7)} \\= \frac{x^{2}+7x-4x-12 }{(x-5)(x+3)(x+7)} \\= \frac{x^{2}+3x-12 }{(x-5)(x+3)(x+7)} \\

The final expression gives the difference

6 0
3 years ago
PLEASE HELP AND ANSWER THE QUESTION IN FULL WILL GIVE BRAIN
Murrr4er [49]

Answer:

I think it might be data and range

Step-by-step explanation:

the answer is at the top

7 0
2 years ago
Other questions:
  • What is 11*1/4 for math
    13·2 answers
  • Which of the following is a solid consisting of a disc, a point not in the same
    7·1 answer
  • If 8 degrees dropped 10 degrees and midnight what is the temperature?
    9·2 answers
  • Write (-3, 5) and (-2, -6) standard form
    5·1 answer
  • LOOK IF YOU DONT KNOW HOW TO PARAPHRASE JUST USE THIS WEBSITE AND TEACHERS NEVER NOTICE BOOK MARK IT IT WILL HELP YOU
    12·1 answer
  • What is the volume of 10 feet 6 feet and 8 feet
    5·1 answer
  • The probability that two cards are selected at random from a deck of cards containing
    7·1 answer
  • What is the area of the triangle below? 10 cm 2 20 cm 2 10.5 cm 2 11 cm 2
    14·1 answer
  • SOMEONE PLEASE HELP ILL GIVE BRAINIEST
    6·1 answer
  • CORRECT ANSWER GETS BRAINLIEST
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!