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4 years ago

Describe a theme park ride that has a constant speed but changing velocity?

2 answers:

7 0

The only difference between speed and velocity is that velocity also includes direction, so if the speed is the same but the velocity is changing, that means that the direction is changing on the ride, but the speed is staying the same.

shepuryov [24]4 years ago

3 0

A Ferris wheel is a good example of a ride that would change velocity but not speed. Because it moves around in circles, it changes direction but the speed remains the same.

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What is the solution to this system of equations?

Vika [28.1K]

Answer:

(-2,2)

Step-by-step explanation:

Looking at your graph, the part were both lines intersect/meet is at point (-2,2). Since (-2,2) is the point of intersection, it is the solution to the equations.

Hope this helps ^-^

5 0

3 years ago

Which of these is a binomial? <br> a. 5xy <br> b. x+2y^2-7<br> c. ab<br> d.2x3-7y3

zavuch27 [327]

a. 5xy - monomial

b. x + 2y² -7 → x, 2y², -7 - trinomial

c. ab - monomial

<h3>d. 2x³ - 7y³ → 2x³, -7y³ - binomial</h3>

5 0

3 years ago

Read 2 more answers

Simplify (10 x 10^5)/(2 x 10^-5)

dybincka [34]

The answer to the question

3 0

4 years ago

Look at the figure above: If the measure of <MNL is 43°, find the measures of the following angles. Be sure to justify each m

zimovet [89]

Answer:

NP = 43

LNO = 137

MNP = 137

Step-by-step explanation:

MNL is a vertical angle to PNO, therefore they are equal

MNL = PNO

MNL = 43 = PNO

MNL and LNO are supplementary angles. They add to 180 degrees

MNL + LNO = 180

43+LNO = 180

Subtract 180 from each side

43-43 +LNO = 180-43

LNO = 137

LNO and MNP are vertical angles. Vertical angles are equal

LNO = MNP

137=MNP

3 0

3 years ago

We are interested in determining whether or not the variances of the sales at two small grocery stores are equal. A sample of 21

katen-ka-za [31]

Answer:

$F=\frac{s^2_A}{s^2_B}=\frac{28.284^2}{20^2}=1.99996$

Step-by-step explanation:

Data given and notation

$n_A = 21$ represent the sampe size for A

$n_B =16$ represent the sample size for B

$s_A = 28.284$ represent the sample deviation for A

$s_B = 20$ represent the sample deviation for B

$\alpha$ represent the significance level provided

F test is a statistical test that uses a F Statistic to compare two population variances, with the sample deviations s1 and s2. The F statistic is always positive number since the variance it's always higher than 0. The statistic is given by:

$F=\frac{s^2_1}{s^2_2}$

Solution to the problem

System of hypothesis

We want to test if we have the same variation, so the system of hypothesis are:

H0: $\sigma^2_A = \sigma^2_B$

H1: $\sigma^2_A \neq \sigma^2_B$

Calculate the statistic

Now we can calculate the statistic like this:

$F=\frac{s^2_A}{s^2_B}=\frac{28.284^2}{20^2}=1.99996$

8 0

4 years ago