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3 years ago

Larry recorded his time as he ran. what was his average speed from 2 to hour 4

Mathematics

2 answers:

algol133 years ago

7 0

Answer:

just did the assignment

GenaCL600 [577]3 years ago

4 0

Answer:

7mph

Step-by-step explanation:

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Lily works at a company that makes shirts by hand. She recorded the number of shirts (y) each of eight employees made in one day

inn [45]

Your answer is B because in order for it to be a scatter plot it has to have 2 points going through the line

7 0

3 years ago

What is the perimeter of the composite figure?

Alex

Perimeter of Rectangle: 17 + 17 + 22 + 22
To find missing side of triangle: 19^2 + (22 - 10)^2 = c^2
361 + 144 = c^2
505 = c^2
sqrt of 505 = 22.5

Add everything together and you get A! Hope this helped!

6 0

3 years ago

two planes, which are 1965 miles apart, fly toward each other. their speeds differ by 55mph. if they pass each other other in 3

Alexus [3.1K]

The speed of the planes are 300 miles per hour and 355 miles per hour.

Solution:

Given, Two planes are 1965 miles apart, flying toward each other.

Their speeds differ by 55 mph.

They pass each other in 3 hours,

We have to find what is the speed of each?

Let the speed of 1st plane be s miles per hour, then speed of the other plane will be s + 55 miles per hour.

And, distance travelled by 1st plane be d, then distance travelled by other plane will be 1965 – d miles

Now, we know that, distance = speed $\times$ time

So, for 1st plane ⇒ $\mathrm{d}=\mathrm{s} \times 3$

For 2nd plane ⇒ $1965-d=(s+55) \times 3$

By using 1st plane equation

1965 – 3s = 3s + 165

1965 – 165 = 3s + 3s

6s = 1800

s = 300

So, speed of 1st plane is 300 miles per hour, then speed of 2nd plane will be 300 + 55 = 355 miles per hour.

Hence, the speed of the planes are 300 miles per hour and 355 miles per hour.

4 0

4 years ago

PLEASE HELP WITHIN THE NEXT FEW MINUTES!

statuscvo [17]

Volume of a sphere can be found by using the formula V= $\frac{4}{3} \pi r^{3}$ where r is the radius of sphere.

Lianne drew a sphere with a radius of 7 in that is r= 7 in .she has written $\frac{\pi}{3}$ and need to find what should be multiplied in numerator with pi.

$V=\frac{4}{3} \pi r^{3} =\frac{4\pi r^{3} }{3} =\frac{\pi}{3} (4 r^{3} )$

As r= 7 she needs to multiply numerator $4 r^{3} = 4 (7^{3)} =4(343) =1372$

The number to be multiplied is 1372.

3 0

3 years ago

Read 2 more answers

Which of the following is NOT a possible value for the correlation coefficient? 1) negative 0.9 2) zero 3) positive 0.15 4) posi

AnnyKZ [126]

Answer:

4) positive 1.05

Step-by-step explanation:

Correlation:-

Correlation is a statistical measure that indicates the extent to which two or more variables fluctuate together.

Examples:i) The yield of a crop varies with the amount of rainfall

ii) The price of a commodity increases with the reduction in its supply and so on.

That is when the changes in one variable are associated or followed by changes in the other, is called correlation

positive correlation:- If an increase (or decrease ) in the values of one variable corresponds to an increase(or decrease ) in the other, then correlation is said to be positive.

negative correlation:- If an increase (or decrease ) in the values of one variable corresponds to an decrease(or increase ) in the other, then correlation is said to be negative.

no correlation:-

If there is no relationship indicated between the variables,they are said to be independent or uncorrelated.

uses of correlation:-it is used in presenting the average relationship between any two variables through a single value of co-efficient of correlation. correlation is a statistical technique that can show whether and how strongly pairs of variables are related.

The range of correlation is $-1\leq r\leq 1$

r=-1 is the negative correlation

r=1 is the positive correlation

so the answer is not a possible value for the correlation coefficient is positive 1.05.

4 0

3 years ago