Mathematics High School

If no mechanical energy were lost, a skateboarder descending a straight 40 meter slope would arrive at its foot with speed of 15 m/s.Calculate the angle the slope makes with the horizontal​

Answers

Answer 1

Answer:

Answer

Step-by-step explanation:

Step-by-step explanation

Related Questions

A spinner with three sectors labeled A,B, and C is spun, and a coin is flipped. Let H stand for heads and T for tails. What is the sample space for the experiment?

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Answer:

the answer is 1/8

Step-by-step explanation:


Four times the sum of a number and 18 is at least -22

Answers

Answer:

x=7

Step-by-step explanation:

3x+4=18+x

2x=14

Set number equal to "x".

En un estacionamiento cobran $12.00 la hora y $3.00 por 1/4 de hora ¿Cuánto debo pagar si estacione mi coche a las 11.15am y los saque a las 3.00pm
Ayuda plis doy coronita.

Answers

Answer:

$45

Step-by-step explanation:

De 11.00am a 3.00pm hay 4 horas de diferencia.

Eso seria 12x4=$48

Pero necesitamos restarle 1/4 de hora, por lo que se estaciono a las 11.15am y no a las 11.00am

1/4 de hora o 15min= $3.00

48-3=45

Two frozen yogurt shops opened on the same block . Store A charges $2 for a cup plus $0 .50 per ounce . Store B does not charge for the cup, but charges $1 per ounce . Write a system of equations to represent the problem . Let x represent the weight of the frozen yogurt in ounces and let y represent the cost in dollars . plz help i need to raise my grades :(

Answers

Answer:

Step-by-step explanation:

Two frozen yogurt shops opened on the same block . Store A charges $2 for a cup plus $0 .50 per ounce . Store B does not charge for the cup, but charges $1 per ounce .

SLet x represent the weight of the frozen yogurt in ounces and let y represent the cost in dollars .

System of equation

y = 2 + 0.5x

8(4x-1)-12x=2(11x-3)

Answers

Answer:

Solving for X? would be 1

Step-by-step explanation:

32x-8-12x=22x-6

20x-8=22x-6 then subtract 20x from each side and add 6 to each side

2=2x then divide by 2 and getting 1 is x

Answer:

x=-1

Step-by-step explanation:

You have a job interview that is 330 miles away. If your average driving speed is 55 miles per hour, how long will it take you to get there? Show your work. Check your answer.

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Answer: 6 hours

Explanation: You divide 330 miles by 55 mph.

Find the volume of a 1 km3 body of water in m3, and select the correct units.

Answers

Answer:

1,000,000,000 [tex]m^3[/tex]

Step-by-step explanation:

1 kilometer is equal to 1000 meters, and 1 [tex]km^3[/tex] is 1 km * 1 km * 1 km

Therefore,

1000m * 1000m * 1000m = 1,000,000,000 [tex]m^3[/tex]

Hope this answer helped! :)

A cab company charges $4 per cab ride, plus an additional $3 per mile driven. How long is a cab ride that costs $22?​

Answers

Answer:

6 miles

Step-by-step explanation:

Flat fee is $4

Per mile is $3

Equation :

4 + 3m = 22

subtract 4 from both sides

3m = 18

divide each side by 3

m = 6

The ride is 6 miles.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Can you help me, I would appreciate it very much:(

Which is the answer?

A.1
B.5
C.8
D.2

Answers

C
As they r corresponding angles, they equal one another.

WORTH 30!!!
Find the value of tan theta, if cos theta= 4/5; 0< theta < 90​

Answers

Answer:

I'm almost positive that A and D are wrong but please don't kill me if I'm wrong

Step-by-step explanation:

8(39 + 11)
a (8 +39) * (8 + 11) = 893
b. (8 x 39) * (8 x 11) = 27456
C. (8 +39) + (8 + 11) = 66
d. (8 x 39) + (8 x 11) = 400

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Answer:

option D is the correct answer

D is the correct answer

State if the two triangles are congruent. If they are, state how you know.
5)

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Answer:

Two triangles are congruent if they meet one of the following criteria. : All three pairs of corresponding sides are equal. : Two pairs of corresponding sides and the corresponding angles between them are equal. ... and another pair of corresponding sides are equal in two right triangles.

geometry question will give brainly!!

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central angle measure

8. An $18,000 car depreciates at a rate of 16% per year. How old will the car be when it is worth $12,000?

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16 years the answer

You won $1000 in a radio contest. If you invest it in an account that pays 4.5% interest compounded semiannually, what will be your balance after 4 years?


please answer I'll give you five stars ​

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Answer:

[tex]A= P( 1 + \frac{r}{n})^{nt}\\[/tex]

P = 1000

r = 4.5% = 0.045

n = semi annually = 2

t = 4

[tex]A= 1000( 1 + \frac{0.045}{2} )^8 =1000(1 +0.0225)^8= \$ 1194.83[/tex]

Help I need to make this number into a fraction I’ll give brainliest

Answers

Answer:

33/100 or 1/3

Step-by-step explanation:

The dot over the 3 means repeating, right??

If not, then the correct answer is 3/10.

In the diagram, the measures of 23 and 27 are 45°. The measure of Z5 is 135º. Are lines cand d parallel? e 1. 2 3 d 6 5 7 8​

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Answer is A angles 3 and 7 are congruent

9 tickets to a theme park cost £243, how much would 7 tickets cost

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Answer:

£189

Step-by-step explanation:

Divide the cost by 9 to find the cost of 1 ticket, then multiply this by 7

cost of 1 ticket = £243 ÷ 9 = £27

cost of 7 tickets = 7 × £27 = £189

John is watching a baseball game. So far, 6 out of 8 batters have gotten a hit. What is the
experimental probability that the next batter will get a hit?

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Answer: 3/4 or 75% chance of him getting a hit

What is 5.704 expressed to two decimal places?

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Answer:

5.70, or 5.7.

Step-by-step explanation:

4 is rounded to 70 (4 and below you round down), the 5 stays the same, and then you get 5.70 which you can reduce to 5.7.

It’s all in the picture. WILL GIVE BRAINIEST TO CORRECT ANSWER

Answers

1. C
2. A
3. D
4. B

The 5 vertical lines shows the (left to right) minimum value, quartile 1, median, quartile 3, and maximum value.

Can someone help brainllest and 20 points

Answers

Answer:

10a+5

Step-by-step explanation:

10(a+.05)

Distribute the 10

(10*a)+(10*.5)

Multiply

10a+5

A person invested $650 in an account growing at a rate allowing the money to double
every 13 years. How long, to the nearest tenth of a year would it take for the value of
the account to reach $1, 620?

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Answer:

17.1

Step-by-step explanation:

because i did it lol

Please help me with this homework show me how you get it and the answer

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Answer:

25.12 in³

Step-by-step explanation:

v = (1/3)πr²h

Plug in the givens

v = (1/3)(3.14)(4/2)²(6)

v = (1/3)(3.14)(4)(6)

v = 25.12

Answer:

the volume is 25.12. that's the correct answer

URGENT HELP!!!!!!!!!!!!!!!!!


Please don’t link any files!!

Answers

Answer:

C

Step-by-step explanation:

There are 5 Frogs that jumped between 50 to 100. We don't know if any jumped 60

Answer:

C is the answer by default

2
A payment increases from $700 to $945. What is the percent increase in the
payment? Show your work.

Answers

hmm...

The answer is 35.00%

IT IS RIGHT, TRUST ME

Answer:

the answer is 76.02 the person above was wrong.

Step-by-step explanation:

HELP! THIS IS DUE TODAY, and i will mark brainlest!

Answers

Answer: The first one:

The graph is a function because each input has exactly one output.

Please mark brainliest.  Hope this helps.

Which body system is responsible for exchange of oxygen and carbon dioxide between the body and the atmosphere?
Answers :
A. Nervous System
B. Excretory System
C. Circulatory
D. Respiratory System

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Answers

I believe the answer is d

What is the next step

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Answer:

measure of angle ABC is 6 degree.

Step-by-step explanation:

After you found x, you'll plug it in the equation of the angle it's asking for.

Measure of angle ABD, and you know measure of angle ABC = 4x-1.

4(1)-1 = 4-1 = 3

Measure of angle CBD = 2x+1.

2(1) +1 = 3

Measure of angle ABC is ABD + CBD

3 + 3 = 6

Answer:

6°

Step-by-step explanation:

We know that is 4x - 1 + 2x + 1

So it equals

6x

or 6 ( 1) = 6°

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Please answer this math question for me

Answers

Answer:35 51 98

Step-by-step explanation:

Answer:

Hello! Thanks for posting the question again!

Anyways here are the answers...

d = 35 because its a vertical angle

e = 51 because its a vertical angle

Now to find f we have to add these up then subtract by 360 then ÷ by 2 so 51 + 51 + 35 + 35 = 172 360 - 172 = 188 188 ÷ 2 = 94 so f = 94

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