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2 years ago

Find the perimeter of the polygon PQR shown in the graph

Mathematics

2 answers:

KIM [24]2 years ago

5 0

Answer:

Put graph!!

Step-by-step explanation:

olasank [31]2 years ago

3 0

Step-by-step explanation:

Please can u put the graph... By the way the perimeter is the sum if sides

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A tennis tournament starts with 117 players. If a player is eliminated after losing three matches, what is the least possible nu

ahrayia [7]

Step-by-step explanation:

If four players are left, then there are 117 – 4 = 113 players who have been eliminated.

3 0

2 years ago

dataset a has a mean of 215 and a standard deviation of 35. Dataset B has a mean of 400 and a standard deviation of 12. Which da

GREYUIT [131]

I think it is Dataset B Does that help?

6 0

2 years ago

Read 2 more answers

The school jazz band consists of 2 male percussionists, 2 female percussionists, 3 male woodwinds, 2 female woodwinds, 4 male br

dusya [7]

Answer:

$\frac{1}{8}$ chance or 12.5% chance

Step-by-step explanation:

2 male percussionists

2 female percussionists

3 male woodwinds

2 female woodwinds

4 male brass players

3 female brass players

We're looking for a female woodwind. Now there is only 2 of them so we get the female woodwinds out of all the jazz band members or $\frac{2}{16}$ or $\frac{1}{8}$ or 12.5% chance.

6 0

2 years ago

The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the

Vika [28.1K]

Answer:

The value of the test statistic is t=1.12.

Step-by-step explanation:

This is a hypothesis test for the difference between populations means.

The claim is that the mean amount of time required to reach a customer service representative significantly differs between the two hotels.

Then, the null and alternative hypothesis are:

$H_0: \mu_1-\mu_2=0\\\\H_a:\mu_1-\mu_2\neq 0$

The sample 1, of size n1=20 has a mean of 2.65 and a standard deviation of √2.952=1.72.

The sample 2, of size n2=20 has a mean of 2.01 and a standard deviation of √2.952=1.89.

The difference between sample means is Md=0.64.

$M_d=M_1-M_2=2.65-2.01=0.64$

The estimated standard error of the difference between means is computed using the formula:

$s_{M_d}=\sqrt{\dfrac{\sigma_1^2+\sigma_2^2}{n}}=\sqrt{\dfrac{1.72^2+1.89^2}{20}}\\\\\\s_{M_d}=\sqrt{\dfrac{6.531}{20}}=\sqrt{0.327}=0.571$

Then, we can calculate the t-statistic as:

$t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{0.64-0}{0.571}=\dfrac{0.64}{0.571}=1.12$

5 0

2 years ago

F(x)=6-6x g(x)=-3x+6 Find f+g

Brut [27]

Answer:

12-9x is answer ........ . . .

3 0

2 years ago