How far is it from A to C? D 25 yd 40 yd A E F 60 yd x yd

What is the slope of the line passing through the points (−1, 3) and (4, −7) ?

alexira [117]

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

in this problem we have

$A(-1,3)\ B(4,-7)$

substitute in the formula

$m=\frac{-7-3}{4+1}$

$m=\frac{-10}{5}$

$m=-2$

therefore

the answer is the option A

$m=-2$

5 0

3 years ago

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Which list could represent the four angle measures of a quadrilateral if one angle measures 125°?

k0ka [10]

Answer: D

Step-by-step explanation:

The sum of the interior angles of a quadrilateral is 360°.

55+55+125+125=360

4 0

2 years ago

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Find the coordinates of a point that divides the directed line segment PQ in the ratio 5:3. A) (2, 2) B) (4, 1) C) (–6, 6) D) (4

Yuri [45]

Answer:

The answer is explained below

Step-by-step explanation:

The question is not complete we need point P and point Q.

let us assume P is at (3,1) and Q is at (-2,4)

To find the coordinate of the point that divides a line segment PQ with point P at $(x_1,y_1)$ and point Q at $(x_2,y_2)$ in the proportion a:b, we use the formula:

$x-coordinate:\\\frac{a}{a+b}(x_2-x_1)+x_1 \\\\While \ for\ y-coordinate:\\\frac{a}{a+b}(y_2-y_1)+y_1$

line segment PQ is divided in the ratio 5:3 let us assume P is at (3,1) and Q is at (-2,4). Therefore:

$x-coordinate:\\\frac{5}{5+3}(-2-3)+3 \\\\While \ for\ y-coordinate:\\\frac{5}{5+3}(4-1)+1$

4 0

3 years ago

k is a an integer for which 1/2^1-k, 1/8. What is the value of k? 1/2^1-k must be equal to 1/8 if i read the question right.

svetlana [45]

Answer:

k = -2

Step-by-step explanation:

If $\frac12^{1-k}=\frac18$

Then

$\frac1{2^{1-k}}=\frac18=\frac1{2^3}$

So

$1-k = 3$

From this follows k = -2

3 0

4 years ago

In the space at the right, draw a triangle : Use an algebraic expression to label the length of each side. Write an expression f

mezya [45]

Not sure I am so sorry I will look more

4 0

4 years ago