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Natalija [7]
2 years ago
10

Helpppp will give brainlist !!!!!!

Mathematics
1 answer:
BartSMP [9]2 years ago
7 0

Answer:

8. The coordinates (0,0) represent the fact that when 0 minutes has passed, the horses have gone 0 miles because they hadn't started yet.

9. From the graph, it looks like horse A takes 4 minutes and horse B takes 2.5 minutes (aka 2 minutes and 30 seconds) to travel 1 mile.

10. For A: y = (1/4)x

For B: y = (2/5)x

11. For A: 3 miles

For B: (24/5) miles, or 4 and (4/5) miles.

12. Can't see the entire problem sorry.

Step-by-step explanation:

9. You find this by going to y=1 and look towards the right till you find the point the line intersects with y=1. Then find the x value by finding the corresponding number on the x axis.

10. A linear function will look something like this: y = mx+b, where y is the y value, x is the x value, m is the slope, and b is the y-intercept. Since both lines start from 0, you don't have to write the y-intercept since there's no point in writing +0. To find slope, you find delta y over delta x. Basically just find the difference of two y values and the difference of two x values from the same coordinate in the same order. I know that sounds really confusing but your teacher will probably teach this later on.

11. x represents the time, so just substitute x as 12 in the equation.

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Factor completely 3x3 − 6x2 − 24x. 3x(x − 4)(x + 2) 3x(x + 4)(x − 2) 3x(x − 3)(x − 2) 3x(x + 3)(x − 2)
inysia [295]

Answer:

3x(x - 4)(x + 2)

Step-by-step explanation:

Given

3x³ - 6x² - 24x ← factor out common factor of 3x from each term

= 3x(x² - 2x - 8) ← factor the quadratic

Consider the factors of the constant term (- 8) which sum to give the coefficient of the x- term.

The factors are - 4 and + 2, since

- 4 × 2 = - 8 and - 4 + 2 = - 2, thus

x² - 2x - 8 = (x - 4)(x + 2) and

3x³ - 6x² - 24x = 3x(x - 4)(x + 2)

7 0
3 years ago
An object falls d meters in t seconds
harina [27]
You would take d times t seconds and find the answer
3 0
3 years ago
5) Consider the diagram. What is QS? <br> 2 units<br> 5 units<br> 17 units<br> 33 units
Shkiper50 [21]

Answer:

17 units

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
a radioactive sample contains 3.00 g of pure 11c, which has a half-life of 20.4 min. (a) how many moles of 11c are present initi
sveta [45]

The number of mole of pure 11C (carbon-11) initially present is 0.2727 mole

<h3>Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation

Mole = mass / molar mass

With the above formula, we can obtain the number of mole of pure 11C. Detail below:

<h3>How to determine the mole of 11C</h3>

From the question given, the following data were obtained:

  • Molar mass of 11C = 11 g/mol
  • Mass of 11C = 3 g
  • Mole of 11C =?

Mole = mass / molar mass

Mole = 3 / 11

Mole = 0.2727 mole

Therefore, the number of mole of pure 11C initially present is 0.2727 mole

Learn more about mole:

brainly.com/question/13314627

#SPJ4

8 0
1 year ago
Consider the following number sentence: 3 + 2 + 2 + 2 + 2 Simplified: 3 + 4(2) = 11 Consider the following sentence: 3 + a + a +
zhannawk [14.2K]

Answer:

18

Step-by-step explanation:

Step 1: Substitute 15 for <em>a</em>

3 + 3(5)

Step 2: Solve

3 + 15

18

And we have our answer!

6 0
3 years ago
Read 2 more answers
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