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3 years ago

What is the velocity of the plane that travels 3000km in 5 hours?

Mathematics

2 answers:

bulgar [2K]3 years ago

5 0

I agree it’s 600 because to measure speed it’s distance over time 3000/5

Ivan3 years ago

3 0

Answer:

600km/h

546.807 fps

0.1666667 km/s

Step-by-step explanation:

Use which ever unit youd want to in this scenereo, I'd use 600km/h

3000 / 5 = 600

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Please help, I will give you brainliest!

V125BC [204]

Answer:

$12 = 12 \\ 12 - 12 = 12 - 12 \\ 0 = 0$

7 0

3 years ago

The volume of a cylindrical water tank is 2783π cubic feet. If the radius is 11 feet, what is the height of the tank?

jolli1 [7]

Answer:

23 feet

Step-by-step explanation:

Givens

Volume = pi r^2 h

r = 11

V = 2783 pi

Solution

2783 pi = pi 11^2 * h Cancel the 2 pi's

2783 = 11^2 h Expand 11^2

2783 = 121 * h Divide by 121

2783/121 = h

h = 23 feet

4 0

3 years ago

(1 point) A random sample of 600 movie goers in Flagstaff found 252 movie goers who had bought popcorn on their last visit. Find

garik1379 [7]

<u>Answer-</u>

A 95% confidence interval for the true percent of movie goers is 36.41% to 44.25%

<u>Solution-</u>

Given,

n = 600 (sample size)

x = 252 (number of people who bought)

Confidence interval = 95%, so z = 1.96

We know that,

$\mu = M\pm Z(SE)$

where,

M = sample mean

Z = Z statistic determined by confidence level

SE = standard error of mean

Calculating the values,

$M=\frac{x}{n} =\frac{242}{600} =0.4033$

$Z=1.96$ from the tables

$SE=\sqrt{\frac{M\times (1-M)}{n}}$

$\Rightarrow SE=\sqrt{\frac{0.4033\times (1-0.4033)}{600}}=0.02$

Putting all the values in the formula,

$\mu = M\pm Z(SE)$

$\mu = 0.4033\pm 1.96(0.02)$

$=0.4033\pm 0.0392$

$=0.4425, 0.3641$

$= 44.25\%,36.41\%$

5 0

4 years ago

7(n+4) ....................

Juli2301 [7.4K]

Answer:

Step-by-step explanation:

$7(n + 4)$

Expand

$7 \times n = 7n \\ 7 \times 4 = 28 \\ \\ 7n + 28$

4 0

3 years ago

Find the midpoint M of the line segment joining the points P = (-4, 6) and Q = (8, -4).

mrs_skeptik [129]

Answer:

M=(2,1)

Step-by-step explanation:

The mid points is half the distance of the x and y values so

-4 and 8 are 12 apart so 12/2=6 so -4+6=2

so the x value of M is 2

same for the y value 6 and -4 are 10 apart 10/2=5 and 6-5=1 so

so the y value of M is 1 so

M=(2,1)

8 0

3 years ago