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3 years ago

Help pleaseee :) tyy

Mathematics

1 answer:

STatiana [176]3 years ago

8 0

Answer:

The slope is 4

Step-by-step explanation:

First we pick 2 points (x, y):

(0, -2) and (1, 2)

Then, we use the slope (m) formula:

m = (y2 - y1)/(x2 - x1)

Given:

y2 = 2

y1 = -2

x2 = 1

x1 = 0

Work:

m = (y2 - y1)/(x2 - x1)

m = (2 + 2)/(1 - 0)

m = 4/1

m = 4

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For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tail

bagirrra123 [75]

Answer:

Option B:

$H_0: \mu = 22.1$

$H_a: \mu \neq 22.1$

Classification:

The hypothesis test is Two-tailed.

Step-by-step explanation:

The mean length of imprisonment for motor-vehicle theft offenders in this country is 22.1 months.

This means that the null hypothesis is that the mean is of 22.1 months, that is:

$H_0: \mu = 22.1$

A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 22.1 months.

At the alternate hypothesis, we test if this mean is different of 22.1, that is:

$H_a: \mu \neq 22.1$

Which means that the answer is given by option b).

Which of the following is the correct classification of the hypothesis test?

We test if the mean is different from a value, which means that the hypothesis test is Two-tailed.

7 0

3 years ago

The graph shows the value of a car At different years after janine purchased it. which answer is the best estimate for the avera

elixir [45]

I think it is -550/year

3 0

4 years ago

Read 2 more answers

X²+2x-15=0 Solving quadratic equations using factorising

Lina20 [59]

Answer: (x+5)(x-3)

Explanation:

Write 2x as a difference so (that also =15) so 5x-3x

That end up being x^2+5x-3x-15 now putting into factorisation (x+5)(x-3)

Hope this helps:)

6 0

2 years ago

Which undefined term is needed to define a circle

ValentinkaMS [17]

Answer: point

Step-by-step explanation:

8 0

4 years ago

last year, debra opened an investment account with $7600. At the end of the year, the amount in the account had increased by 29.

-BARSIC- [3]

There are $9842 in her account at the end of last year.

Step-by-step explanation:

Given,

Amount in account = $7600

Increment by the end of year = 29.5%

Amount of increase = 29.5% of amount in account

Amount of increase = $\frac{29.5}{100}*7600$

Amount of increase = 0.295*7600 = $2242

The increase is $2242.

Amount after increase = 7600 + 2242 = $9842

There are $9842 in her account at the end of last year.

Keywords: percentage, division

Learn more about percentages at:

#LearnwithBrainly

5 0

3 years ago