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Strike441 [17]
2 years ago
7

Solve x^2 – 3x = –8 using the quadratic formula.

Mathematics
1 answer:
Zina [86]2 years ago
3 0

Answer:

on your scientific calculator click on MODE then number 5 then number 3 and put those numbers x^2 – 3x = –8

(AFTER WRITING EACH NUMBER CLICK ON = SO YOU CAN PUT THE OTHER NUMBERS. FOR EXAMPLE, WRITE 1 AS A THEN CLICK = AND SO ON)

1 and A  (write 1 first then click =)

-3 as B   (write -3 then click =)              

+8 as C  (write 8 then click =)

then you will get the answer of x1 and 2

Step-by-step explanation:

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1. Refer to the equation 2x − 6y = 12. (a) Create a table of values for at least 4 points. Show your work.
Sergio039 [100]
2x - 6y = 12

so we pick any number for x and then solve for y

lets say x = 0
2(0) - 6y = 12
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y = -12/6
y = -2....so when x = 0, y = -2....(0,-2) <== one point

lets say x = 1
2(1) - 6x = 12
2 - 6x = 12
-6x = 12 - 2
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x = -10/6
x = - 5/3...so when x = 1, y = -5/3....(1,-5/3) <== another point

Lets say x = 2
2(2) - 6y = 12
4 - 6y = 12
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y = -8/6
y = - 4/3....so when x = 2, y = -4/3.....(2,-4/3) <== another point

lets say x = 3
2(3) - 6y = 12
6 - 6y = 12
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2 years ago
What is the equation of the yellow line
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Answer:

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Step-by-step explanation:

The line is going down to the right so it has the negative slope, with a y- intercept of (0, -2) and a slope of m = rise/run = -5/3

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mars1129 [50]

Answer:

If the p-value is less than a given significance level, you reject the null hypothesis and accept the alternative hypothesis.

Step-by-step explanation:

Suppose you have a business in which you'd like to make a change to increase your business. After making the change, you can use a significance test it. To conduct a significance test, you make a null hypothesis which states essentially that no effect happened. You also make an alternative hypothesis that states the change had an effect. You then test the two to see which one stands. In a significance test, using the p-value from your sample you compare it to the null and alternative hypotheses. You make a conclusion when:

  • If the p-value is less than a given significance level, you reject the null hypothesis and accept the alternative hypothesis since the evidence is in favor of it.

If the p-value is greater than the significance level, then you fail to reject the null hypothesis and cannot conclude. There isn't evidence in favor of the alternative hypothesis.

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2 years ago
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