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Romashka [77]
3 years ago
10

a circle with center c(4,-2) contains the point D(8,1). what is the equation of the line perpendicular to the radius of the circ

le passing through point c?

Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0

Answer:

Step-by-step explanation:

slope of CD=(1+2)/(8-4)=3/4

slope of line ⊥ to CD=-4/3

eq. of line with slope -4/3 and passing through (4,-2) is

y-y1=m(x-x1)

y+2=-4/3(x-4)

3y+6=-4x+16

3y=-4x+16-6

3y=-4x+10

or 4x+3y-10=0

this is the eq. of line in the form  ax+by+c=0

or in slope form

y=-4/3 x- 10/3

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Andre45 [30]

Answer:

Choice A. -3

Step-by-step explanation:

Using the x1-x2/ y1-y2 u fill in. So it would be 3-(-3) (x-axis) and 2-4 (y-axis).

So when u do both of those you are left with 6/-2.

When u simplify 6/-2 you get -3.

4 0
3 years ago
Read 2 more answers
need help with error analysis assingment, im in high school and ive always struggled with math alot pls help
valina [46]

Given

A) The angles A and B are supplementary.

If,

\begin{gathered} \angle A=x+6 \\ \angle B=7x+30 \end{gathered}

B) The figure,

To find

A) The value of x.

B) The value of x.

Explanation:

A) It is given that,

Angle A and angle B are supplementary.

Then,

\angle A+\angle B=180\degree

Hence, the error is in the statement,

Since the angles are supplementary, when added together they equal 90.

As, the correct answer is when added together they equal 180.

That implies,

\begin{gathered} x+6+7x+30=180 \\ 8x+36=180 \\ 8x=180-36 \\ 8x=144 \\ x=\frac{144}{8} \\ x=18\degree \end{gathered}

Hence, the value of x is 18 degrees.

B) It is given that,

From, the figure the given angles are interior angles.

Also, the interior angles on the same side of the transversal is supplementary.

Which means when you add them they equal 180.

Hence, the error is in the statement,

Since the angles are adjacent, they are complementary angles.

Which means when you add them they equal 180.

As, the angles are interior angles on the same side of the transversal.

Also,

\begin{gathered} 64+x=180 \\ x=180-64 \\ x=116\degree \end{gathered}

Hence, the value of x is 116 degrees.

6 0
2 years ago
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snow_tiger [21]

Answer:

C/8

Step-by-step explanation:

Because the range is the biggest number subtracted by the lowest number and in our data sat 7,15,and 12 15 is the biggest number and 7 is the smallest so what's 15-7?

8 so C

Have a great day.

3 0
2 years ago
The base of a cube is shown. The area of the base is<br> ft. What is the volume of the cube?
LuckyWell [14K]

Step-by-step explanation:

Area of base of cube

= x \times x =  {x}^{2}  \\  \\ volume \:   \\ = area \: of \: base \times height \\  =  {x}^{2}  \times x \\  =  {x}^{3}

7 0
4 years ago
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Zinaida [17]

Answer:

Y=10x

Step-by-step explanation:

I hope this helped you

4 0
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