All categories

3 years ago

Please please help lots of point! Please explain clearly and you get BRAINIEST!!!!

Mathematics

1 answer:

Eduardwww [97]3 years ago

5 0

Answer:

-2/3

Step-by-step explanation:

We need to pick two points on the line.

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

We can use the slope formula

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

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

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

= -2/3

You might be interested in

Write the equation of a function that passes through<br> these points.

Ugo [173]

to get the equation of any straight line, we simply need two points off of it, let's use the ones in the picture below.

$(\stackrel{x_1}{1}~,~\stackrel{y_1}{9})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{13}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{13}-\stackrel{y1}{9}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{1}}}\implies \cfrac{4}{2}\implies 2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{9}=\stackrel{m}{2}(x-\stackrel{x_1}{1}) \\\\\\ y-9=2x-2\implies y=2x+7$

7 0

2 years ago

In order for the parallelogram to<br> be a square, x=?

iren [92.7K]

Answer:

Step by step explanation

We know that the diagonals of a square bisects it's angles and every angles of square are 90°

m<BCD = 90°

m<BCA = m< DCA = 4x + 17

m<BCA + m<DCA = m <BCD

4x + 17 + 4x + 17 = 90

4x + 4x + 17 + 17 = 90

8x + 34 = 90

8x = 90 - 34

8x = 56

X = 56/8

x = 7

Hope this helps...

Good luck on your assignment...

5 0

4 years ago

Read 2 more answers

Suppose that a recent article stated that the mean time spent in jail by a first-time convicted burglar is 2.5 years. A study wa

Viefleur [7K]

Answer:

sigma should be used

Step-by-step explanation:

Given that The mean length of time in jail from the survey was four years with a standard deviation of 1.9 years.

The above given is for sample of 27 size.

For hypothesis test to compare mean of sample with population we can use either population std dev or sample std dev.

But once population std deviation is given, we use only that as that would be more reliable.

So here we can use population std deviation 1.4 only.

If population std deviation is used we can use normality and do Z test

4 0

3 years ago

Anya contributed $1,200 toward the purchase

makvit [3.9K]

Answer:

Parent's share would be : 28%

Step-by-step explanation:

Cost of the computer = $2000

Anya's share = $1200

Brother's share = $240

Parents paid rest. That will be : 2000 - 1200 - 240 = $560

Percentage of parents share :

$\frac{560}{2000} \times 100 = 28 \%$

4 0

3 years ago

If l is a vertical line passing through points A(a, b) and B(c, d), then what can you say about a and c?

vladimir1956 [14]

Answer:

Step-by-step explanation:

7 0

4 years ago