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kherson [118]
3 years ago
8

Is y=x2-1 a linear equation

Mathematics
1 answer:
Inga [223]3 years ago
3 0
Y=x2-1 is not a linear equation only because for it to be an linear equation it would have to be 2x-1=y or y=2x-1
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uppose a new production method will be implemented if a hypothesis test supports the conclusion that the new method reduces the
True [87]

Tn the given situation, the appro[riate null hypotheses and alternative hypotheses are: H₀: μ₁ ≥ μ₂a and H₁: μ₁ < μ₂

<h3>What are alternative hypotheses?</h3>

An assertion used in statistical inference experiments is known as the alternative hypothesis.

It is indicated by Ha or H1 and runs counter to the null hypothesis.

Another way to put it is that it is only a different option from the null.

An alternative theory in hypothesis testing is a claim that the researcher is testing.

The initial assertion that forms the null hypothesis frequently rests on research from the past or expert knowledge.

According to the alternative hypothesis, a population parameter is either less, larger, or different from the value predicted by the null hypothesis.

So, the new production method supposedly lowers the mean operating cost per hour.

The following are the hypothesis when comparing the average production costs of the new production method (μ₁) with the old production method (μ₂):

H₀: μ₁ ≥ μ₂

H₁: μ₁ < μ₂

Therefore, in the given situation, the appro[riate null hypotheses and alternative hypotheses are: H₀: μ₁ ≥ μ₂a and H₁: μ₁ < μ₂

Know more about alternative hypotheses here:

brainly.com/question/13045159

#SPJ4

7 0
2 years ago
karim sent a chain email to 10 of his friends. the number of people who got the email increases by a factor of 1.4 every week. w
Alinara [238K]

Answer:

P(6) = 10(1.4)^{6} = 75.2

Step-by-step explanation:

The number of people who receive the email after t weeks can be modeled by the following equation.

P(t) = P(0)r^{t}

In which P(0) is the initial number of poeple who received the email and r is the factor.

Karim sent a chain email to 10 of his friends.

This means that P(0) = 10

The number of people who got the email increases by a factor of 1.4 every week.

This means that r = 1.4

So

P(t) = 10(1.4)^{t}

Which expression gives the number of people who got the email after 6 weeks?

P(6) = 10(1.4)^{6} = 75.2

5 0
4 years ago
Select the correct answer. Consider the function represented by this graph. y 6- 4 2- X 2 2 -2- -6 B which word or phrase descri
Gekata [30.6K]

Answer:

bxcdxdbdbdbdxxbdxdbbxd

Step-by-step explanation:

8 0
3 years ago
Help pls :( I’ll mark you brainlist no links<br> Links= report
yan [13]

Answer:

x = 112, y = 68, z = 112

Step-by-step explanation:

y = 68

x = z = 180 - 68 = 112

8 0
2 years ago
Write the equation of the line perpendicular to y=4/3x+1 that passes through the points (-8, 4).
Murrr4er [49]

Answer:

The equation is;

y = -3/4x + 12

Step-by-step explanation:

The general form for the equation of a straight line is;

y = mx + b

where m is the slope and b is the y-intercept

With respect to this question;

4/3 is the slope and 1 is the intercept

If two lines are perpendicular, then the product of their slopes is -1

Mathematically;

4/3 * m2 = -1

m2 = -3/4

So to find the equation of this second line, we use the point slope form

This is;

y-y1 = m(x-x1)

y-4 = -3/4(x + 8)

y- 4 = -3/4x + 8

y = -3/4x + 12

3 0
3 years ago
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