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4 years ago

What is the vertical and horizontal lines passing through (-7, -1)

Mathematics

1 answer:

elena-s [515]4 years ago

7 0

The vertical and horizontal lines would be x=-7 and y=-1

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-20 = -5 - 3x I need help on this

igor_vitrenko [27]

Answer:

x=5

Step-by-step explanation:

add 5 to both sides

-20+5 = -3x

-15=-3x (divide)

x=5

7 0

3 years ago

Can someone help me to answer this please.

Volgvan

All it's asking is: How many cubic inches are there in 22 gallons ? And it already GAVE us the conversion factor !

The conversion factor is . . . . . 1 gallon = 231 cubic inches

Multiply each side by 22: 22 gallons = 22 x (231 cubic inches)

22 x 231 = 5,082

22 gallons = 5,082 cubic inches

If you empty a full 22-gallon tank out through that flow meter, the meter will register 5,082 cubic inches when the tank is empty.

6 0

4 years ago

WHAT IS THE SLOPE PLEASE??

strojnjashka [21]

Answer:

Step-by-step explanation:

take two points on the line ,i take (-4,0) and (0,-2)

slope=(y2-y1)/(x2-x1)=(-2-0)/(0+4)=-2/4=-1/2

6 0

4 years ago

Read 2 more answers

Find the measure of angle VSW if angle WSR and angle VSW are complementary and the measure of angle WSR is four times the measur

vazorg [7]

Answer:

Step-by-step explanation:

6 0

3 years ago

A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following

GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line = $\dfrac{Upper \ limit + lower\ limit}{2}$

Here , confidence interval : (-0.181, 1.529)

Estimated slope of sample regression line = $\dfrac{-0.181+1.529}{2}$

$=\dfrac{1.348}{2}\\\\=0.674\ \ \ \ [\text{ positive}]$

⇒Correlation coefficient(r) must be positive, So a. is true.

But, d. and e. are wrong(0.674 ≠ 0 or 1.348).

We cannot check residuals or its sum from confidence interval of slope of a regression line, so b is wrong.

We cannot say that scatterplot is linear as we cannot determine it from interval, so c. is wrong

So, the correct option : a. The correlation coefficient of the data is positive.

7 0

3 years ago