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3 years ago

7

what is the equation in point-slope form of the line that passes through the point ( -1,,-4) has a slop of a -3

1 answer:

Vesnalui [34]3 years ago

6 0

The answer has to resemble y=Mx+b so to find your y intercept plug in your coordinates into that equation so put your slope in for m and your x intercept in for x and the y intercept in for y so -4= -3(-1)+b now get b alone -1=b so your equation would be y=-3x-1

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Two planes intersect in a ? point, line,line segment, or ray

denis-greek [22]

Two planes intersect at a Line.

6 0

3 years ago

In triangle △WXY, XY ≅ WX and m∠X=38 Find m∠W

allsm [11]

Answer:

$71^{\circ}$

Step-by-step explanation:

Since two sides of the triangle are equal in length, we can conclude that $\triangle WXY$ is an isosceles triangle. With this information, we can draw an isosceles triangle to find $m\angle W$ . Since the base angles of an isosceles triangle are equal, we can solve for $m\angle W$ :

$38 + m\angle W + m\angle Y = 180$ (Angle sum of triangle is $180^{\circ}$ )

$38+2(m\angle W) = 180$ (Base angles of isosceles triangles are equal, there is an image attached to show that $m\angle W$ is one of the base angles)

$2(m\angle W) = 142$

$m\angle W=71^{\circ}$

Hope this helps :)

5 0

2 years ago

Michael keeps track of how much time he uses his

Valentin [98]

Answer:

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4 0

3 years ago

What is the radius of a circle whose equation is X^2 plus Y^2 -10X +6 X +18=0?

frosja888 [35]

ANSWER

The radius is 4

EXPLANATION

The given equation is:

${x}^{2} + {y}^{2} - 10y + 6x + 18 = 0$

We complete the square to get the expression in standard form:

${x}^{2} + 6x + {y}^{2} - 10y + 18 = 0$

${x}^{2} + 6x + 9 + {y}^{2} - 10y + 25 = - 18 + 9 + 25$

We factor using perfect squares to get:

${(x + 3)}^{2} + {(y - 5)}^{2} = 16$

This implies that,

${(x + 3)}^{2} + {(y - 5)}^{2} = {4}^{2}$

Comparing to

${(x - h)}^{2} + {(y - k)}^{2} = {r}^{2}$

The radius is r=4

3 0

3 years ago

Use each picture or description of a triangle, write and solve an equation in order to find the number of degrees in each angle

TiliK225 [7]

4x + 7x - 2 + 5x - 10 = 180

16x - 12 = 180

16x = 192

x = 12

m<A= 4x = 4(12) = 48

m<B = 7x - 2 = 7(12) - 2 = 84 - 2 = 82

m<C = 5x - 10 = 5(12) - 10 = 60 - 10 = 50

7 0

3 years ago