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3 years ago

V=3.5 sqrt h Solve for h

Mathematics

1 answer:

sesenic [268]3 years ago

6 0

I used the person can see 49km which is my V

SO 49 = 3.5 sqrt (h)

or 49/3.5 = sqrt(h)

or sqrt(h) = 14

or h= 196

So the height is 196

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price of ice hockey match was 14.50. the price has increased by 7%. how much is a ticket after the increase

rjkz [21]

7%=0.7 14.5×.07=1.01500. 1.01500 1.02. 14.50+1.02=$15.52.

3 0

2 years ago

Read 2 more answers

Fred's resting heart rate is 50 bpm every minute he exercises his heart rate increases by 5 bpm how long will it take them to re

Mkey [24]

He would need to exercise for approximately 14 minutes to get to 120 bpm

4 0

3 years ago

Average box of crackers is 24.5 ounces with standard deviation of. 8 ounce. What percent of the boxes weigh more than 22.9 ounce

34kurt

Answer:

97.7% of of the boxes weigh more than 22.9 ounces.

15.9% of of the boxes weigh less than 23.7 ounces.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 24.5 ounces

Standard Deviation, σ = 0.8 ounce

We are given that the distribution of boxes weight is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(boxes weigh more than 22.9 ounces)

P(x > 22.9)

$P( x > 22.9) = P( z > \displaystyle\frac{22.9 - 24.5}{0.8}) = P(z > -2)$

$= 1 - P(z \leq -2)$

Calculation the value from standard normal z table, we have,

$P(x > 22.9) = 1 - 0.023 =0.977= 97.7\%$

97.7% of of the boxes weigh more than 22.9 ounces.

b) P(boxes weigh less than 23.7 ounces)

P(x < 23.7)

$P( x < 23.7) = P( z < \displaystyle\frac{23.7 - 24.5}{0.8}) = P(z < -1)$

Calculation the value from standard normal z table, we have,

$P(x < 23.7) =0.159= 15.9\%$

15.9% of of the boxes weigh less than 23.7 ounces.

7 0

3 years ago

Solve 36+12v+9v=-3v-36

likoan [24]

Answer:

V=4

Step-by-step explanation:

Add it up

8 0

3 years ago

Help me. Im actually so serious

Leviafan [203]

Answer:

Answer in explanation

Step-by-step explanation:

Linear Modeling

It's given a situation where a student has two summer jobs and wants to collect $750 to pay for a down payment on a car. He gets paid $25 for each lawn mowed and $15 for each pool cleaned

Create a model in standard form

Let

x = number of lawns mowed

y = number of pools cleaned

He wants to make $750, thus:

25x + 15 y = 750

Dividing by 5, we have the model that represents the linear relationship:

5x + 3y = 150

Identify the x-intercept

The x-intercept can be found by setting y=0:

5x + 3(0) = 150

5x = 150

Dividing by 5:

x = 150/5 = 30

x = 30

This represents the situation where the student gets his $750 by only mowing 30 lawns, no pools cleaned.

Identify the y-intercept

The y-intercept can be found by setting x =0:

5(0) + 3y = 150

3y = 150

y = 150/3 = 50

y = 50

This represents the situation where the student gets his $750 by only cleaning 50 pools, no lawns mowed.

Identify two combinations that are solutions to the equation

Starting from the basic equation

5x + 3y = 150

We can give x some arbitrary value (less than 30) and find the value for y.

For example, for x=12

5*12 + 3y = 150

60 + 3y = 150

3y = 150 - 60 = 90

y = 90/3=30

This solution corresponds to the case where the student gets $750 by mowing 12 lawns and cleaning 30 pools.

For example, for x=21

5*21 + 3y = 150

105 + 3y = 150

3y = 150 - 105 = 45

y = 45/3=15

This solution corresponds to the case where the student gets $750 by mowing 21 lawns and cleaning 15 pools.

5 0

3 years ago