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2 years ago

A 1050 kg car travels on the freeway at a speed of 33 m/s. What is the cars kinetic energy?

Mathematics

1 answer:

alexandr402 [8]2 years ago

7 0

Answer:

571 725

Step-by-step explanation:

Genetic energy formula:m.v²

1050.33²=

=1050.1089=

1 143 450:2=571 725

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A line passes through the points (2,4) and (5,6) .

Alenkinab [10]

Answer:

Option B and D are correct.

Step-by-step explanation:

Given: A line passes through the points (2,4) and (5,6).

* Case 1:

If a line passes through the points (2, 4) and (5, 6)

Point slope intercept form:

for any two points $(x_1,y_1)$ and $(x_2, y_2)$

then the general form $y -y_1=m(x-x_1)$ for linear equations where m is the slope given by:

$m =\frac{y_2-y_1}{x_2-x_1}$

First calculate slope for the points (2, 4) and (5, 6);

$m = \frac{y_2-y_1}{x_2-x_1} =\frac{6-4}{5-2} = \frac{2}{3}$

then, by point slope intercept form;

$y-4=\frac{2}{3}(x-2)$

* Case 2:

If a line passes through the points (5, 6) and (2, 4)

First calculate slope for the points (5, 6) and (2, 4);

$m = \frac{y_2-y_1}{x_2-x_1} =\frac{4-6}{2-5} = \frac{-2}{-3}= \frac{2}{3}$

then, by point slope intercept form;

$y-6=\frac{2}{3}(x-5)$

Yes, the only equation of line from the given options which describes the given line are;

$y-4=\frac{2}{3}(x-2)$ and $y-6=\frac{2}{3}(x-5)$

8 0

3 years ago

Find the quotient 4.2 ÷7

Nookie1986 [14]

Find the quotient 4.2 ÷7=> 4.2 is our dividend which is a decimal number. 4 as the whole number and 2 is the decimal number.=> 7 is our divisor that will be use to divide with 4.3Let's now start solving:=> 4.2 / 7 = 0.6<span>Thus the quotient of the given data is 0.6 which is also a decimal number same as the divisor.</span>

6 0

3 years ago

At work jenine helps 6 customers every 40 minutes. How many customers can she expect to help in 240 minutes before her break?

Lady bird [3.3K]

Answer: 36 customers

Step-by-step explanation:

I'm pretty sure because you have to multiply 40 x 6 which is 240 and 6 x 6 which is 36 to get your answer.

7 0

3 years ago

Unit 6 lesson 9: linear functions sample work

loris [4]

Answer:

Initially, you have 2573 pieces.

You use 5 pieces each minute.

Right when you start, you have 2573 pieces.

One minute after that, you have 2573 - 5 pieces.

Another minute after, you have 2573 - 2*5 pieces.

Another minute after, you have 2573 - 3*5 pieces.

And so on.

You can see the pattern here, and with this, we can find the linear equation that represents the number of pieces that you have as a function of time.

Then, if the variable t represents the number of minutes that passed since you started, we can write the equation:

f(t) = 2573 - 5*t

That represents the number of pieces that you have after t minutes.

4 0

3 years ago

Choose the correct graph of the function y=-1/2√x+3+2

Bad White [126]

Find y intercept

$\\ \rm\rightarrowtail y=-\dfrac{1}{2}\sqrt{x+3}+2$