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Ipatiy [6.2K]
2 years ago
15

Please help me. I have no idea what to do!!

Mathematics
1 answer:
boyakko [2]2 years ago
7 0

Answer:

It's the first option.

Step-by-step explanation:

It is turned down so the one half is negative (-1/2)

parabola will be in the form of a(x-h)^2 + k. (-h, k) is your vertex, in this case that is (15,25). so in the equation, you will have

-1/2(x-15)^2 + 25. first one.

Hope this helps!

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What number divided by 12 = 7
Y_Kistochka [10]
48 divided by 12 = 7

Because 12x7=48

Hope this helped!
8 0
2 years ago
Read 2 more answers
Change the following percents to fractions and reduce
Serga [27]
Here are the answers.

6. 63/100

7. 75/100 = 3/4

8. 91/100

9. 18/100 = 9/50

10. 3/100

11. 25/100 = 1/4

12. 5/100 = 1/20

13. 16/100 = 4/25

14. 1/100

15. 79/100

16. 40/100 or 4/10 = 2/5

17. 99/100

18. 30/100 or 3/10 = 3/10

19. 15/100 = 3/20

20. 84/100 = 21/25

I hope you find this answer the most helpful! :)
4 0
2 years ago
Let csc(x) = Cosecant (x) = StartFraction 14 Over 10 EndFraction, where 0 less-than x less-than StartFraction pi Over 2 EndFract
dedylja [7]

Answer:

First Option: cos(x)

Step-by-step explanation:

What is given is csc(x) = 14/10

The graph lies in the first quadrant since 0 < x < pi/2

Create a triangle:

The length across is 14

The adjacent is 10

The length of the shorter side is root 96

Use the pythagorean theorem

BC^2 = 14^2 - 10^2

BC^2 = 196 - 100, 96

BC^2 = root 96/14

Recall SOH-CAH-TOA

Adjacent over Hypotenuse is cos

That is how the answer is cos(x)

4 0
3 years ago
Read 2 more answers
Can someone help me with this question please :( !
Natalija [7]

Answer:

D. y = 2x + 1

Step-by-step explanation:

To find the slope, you first have to find the change of y over x, and in this case, you can plainly see that each one is equal to 2. So, that means that the slope is 2. You then can use the slope to find y when x is equal to 0. In this case, y = 1 when x = 0, so that means that the y-intercept is 1. Hence, the final answer is D.

<h2><u><em>Please mark as Brainliest!!!</em></u></h2>
8 0
2 years ago
A steamer going downstream traveled the distance between two ports in 3 hours. The return trip took 3 hours 40 minutes. Find the
lapo4ka [179]

Answer:

1.8 mph

Step-by-step explanation:

Speed of the steamer in still water is 18 mph.

Speed of the current = x mph.

1. The steamer going downstream traveled the distance between two ports in 3 hours. Traveling downstream the current "helps" the steamer, then the speed is 18 + x mph.

The distance traveled downstream = 3(18 + x) miles.

2. The steamer going upstream traveled the distance between two ports in 3 hours 40 minutes that is 3\frac{2}{3} hours. Traveling upstream the current "interferes" the steamer, then the speed is 18 - x mph.

The distance traveled upstream 3\dfrac{2}{3}(18-x) miles.

3. The distances are the same, so

3(18+x)=3\dfrac{2}{3}(18-x)

Solve this equation:

3(18+x)=\dfrac{11}{3}(18-x)\\ \\9(18+x)=11(18-x)\\ \\162+9x=198-11x\\ \\9x+11x=198-162\\ \\20x=36\\ \\x=1.8\ mph

6 0
3 years ago
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