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AlekseyPX
3 years ago
10

NEED HELP!!!!

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
6 0
Quadrant one only. as altitude decreases the atmospheric pressure decreses.
Setler79 [48]3 years ago
4 0

Hello! Just took the test:

As the altitude approaches sea level, the atmospheric pressure increases

and

The atmospheric pressure is 14lb/in^2 at sea level.

Also

Quadrants l and lV only

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What is the total cost?
solong [7]

Answer:

$0.75

Step-by-step explanation:

if Felix wants 1/4 kilogram of marmalade and it cost $3 per kilogram, you divide 3/4= 0.75

6 0
3 years ago
Read 2 more answers
What is a swing state?
marshall27 [118]

Answer:

swing state

noun

a US state where the two major political parties have similar levels of support among voters, viewed as important in determining the overall result of a presidential election.

Step-by-step explanation:

6 0
3 years ago
A manager is comparing wait times for customers in a coffee shop based on which employee is
anyanavicka [17]

Using the t-distribution, as we have the standard deviation for the sample, it is found that there is a significant difference between the wait times for the two populations.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, we test if there is no difference, that is:

H_0: \mu_A - \mu_B = 0

At the alternative hypothesis, it is tested if there is difference, that is:

H_1: \mu_A - \mu_B = 0

<h3>What are the mean and the standard error of the distribution of differences?</h3>

For each sample, we have that:

\mu_A = 73, s_A = \frac{2}{\sqrt{100}} = 0.2

\mu_B = 74, s_B = \frac{4}{\sqrt{100}} = 0.4

For the distribution of differences, we have that:

\overline{x} = \mu_A - \mu_B = 73 - 74 = -1

s = \sqrt{s_A^2 + s_B^2} = \sqrt{0.2^2 + 0.4^2} = 0.447

<h3>What is the test statistic?</h3>

It is given by:

t = \frac{\overline{x} - \mu}{s}

In which \mu = 0 is the value tested at the null hypothesis.

Hence:

t = \frac{\overline{x} - \mu}{s}

t = \frac{-1 - 0}{0.447}

t = -2.24

<h3>What is the p-value and the decision?</h3>

Considering a one-tailed test, as stated in the exercise, with 100 - 1 = 99 df, using a t-distribution calculator, the p-value is of 0.014.

Since the p-value is less than the significance level of 0.05, it is found that there is a significant difference between the wait times for the two populations.

More can be learned about the t-distribution at brainly.com/question/16313918

8 0
2 years ago
What are the steps she used ?
Serjik [45]
1. Add x on both sides of the equation.
2. Subtract 5 from both sides of the equation.
3. Divide both sides of the equation by 3.

If these aren’t options, tell me the options for each dropdown in the comments and I can help further.

Please consider marking this answer as Brainliest to help me advance.
6 0
3 years ago
Write and equation of the translated or rotated graph in general form
german

(x+3)^2 =4 y

That's a parabola, almost in vertex form:

y = \frac 1 4 (x+3)^2

The translation is

(x',y') = T_{(-7,2)} (x,y) = (x-7, y+2)

x= x'+7, y=y'-2

Substituting translates the graph. None of the choices have fractions so we substitute into the original form:

(x'+7+3)^2=4(y'-2)

We can drop the primes now and simplify,

(x+10)^2=4(y-2)

x^2 + 20 x + 100 = 4y -8

x^2 + 20 x - 4y + 108 = 0

Choice C.

This method generalizes nicely to rotations, reflections and other transformations.

6 0
3 years ago
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