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3 years ago

X3 - 3y when x=6 and y= -3

Mathematics

1 answer:

quester [9]3 years ago

3 0

Answer:

Step-by-step explanation:

6×3=18 3×3=9 9+18

jdiwiduduhdh

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Type the correct answer in each box. Use numerals instead of words.

emmainna [20.7K]

Answer:

(x +5)^2 = -2

Step-by-step explanation:

We can subtract the constant to get ...

x^2 +10x = -27

Then add the square of half the x-coefficient:

x^2 +10x +5^2 = -27 +5^2

(x +5)^2 = -2 . . . . . . write as a square

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4 years ago

Read 2 more answers

What is 350 of 1250 as a fraction

Svetllana [295]

Answer:

350 of 1250 as a fraction is 7/25

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4 years ago

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QveST [7]

Answer:

Step-by-step explanation:

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3 years ago

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Write in point-slope form an equation of the line that passes through the given point and has the given slope.

andre [41]

The point-slope form:

$y-y_1=m(x-x_1)$

3. (4, -2); m = 1/4

$y-(-2)=\dfrac{1}{4}(x-4)\\\\\boxed{y+2=\dfrac{1}{4}(x-4)}$

4. (-3, 5); m = -4/3

$y-5=-\dfrac{4}{3}(x-(-3))\\\\\boxed{y-5=-\dfrac{4}{3}(x+3)}$

5. (2, 2); m= - 1

$\boxed{y-2-(x-2)}$

6. (-1, -5); m = 4

$y-(-5)=4(x-(-1))\\\\\boxed{y+5=4(x+1)}$

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3 years ago

Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi

romanna [79]

Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

$H_0:\mu=20$

Alternate hypothesis :

$H_1:\mu$

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066$

So, the p value would be 0.154.

Hence, the p-value is 0.154.

4 0

4 years ago