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mash [69]
3 years ago
8

given line passes through the points (-4, -3) and( 4, 1) what is the equation in point slope form of the line that's perpendicul

ar to the given line and passes through the point (-4,3)
Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
6 0

Answer:

y= -2x-5

Step-by-step explanation:

First find the gradient of the first line

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

m=

\frac{1 -  - 3}{4 -  - 4}

m=

\frac{4}{8}

m=1/2

From this we can find the gradient of the perpendicular line, or the normal.

m1 × m2 = -1

Replace m1 with 1/2

1/2 × m2 = -1

m2= -2

Substitute values into

y-y1=m (x-x1)

y-3=-2 (x+4)

y-3=-2x -8

y=-2x-5

atroni [7]3 years ago
3 0

Answer:

y + 3= one- fourth (x +4

Step-by-step explanation:

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Allushta [10]
Yes. The alg<span>ebraic sum of a negative mixed number and other mixed number.</span>
-1 1/3 + x = 2 
<span>x= 2 + 1 1/3 </span>

<span>x = 3 1/3 </span>

So, the algebraic sum: (-1 1/3) + 3 1/3 = 2
8 0
3 years ago
Read 2 more answers
The area of a rectangle is (x3 – 5x2 + 3x – 15), and the width of the rectangle is (x2 + 3). If area = length × width, what is t
lisabon 2012 [21]

Answer:

D

Step-by-step explanation:

The area of a rectangle is given by the formula:

A=lw

So, we are given that the area is:

x^3-5x^2+3x-15

And the width is:

x^2+3

And we want to find the length. To do so, first substitute the expressions into the equation:

x^3-5x^2+3x-15=(x^2+3)l

Thus, to find the length, divide by (x²+3):

l=\frac{x^3-5x^2+3x-15}{x^2+3}

So, factor the numerator:

x^3-5x^2+3x-15

From the first two terms, factor out a x^2.

From the third and fourth terms, factor out a 3:

=x^2(x-5)+3(x-5)

Combine:

=(x^2+3)(x-5)

Putting this back:

l=\frac{(x^2+3)(x-5)}{x^2+3}

Cancel:

l=x-5

And that's our answer :)

I believe it would be D.

4 0
4 years ago
The formula for the volume of a cone is V=1/3bh<br> Solve V=1/3bh<br> for b, the base of the cone.
Stels [109]

Answer:

b = 3Vh

Step-by-step explanation:

When they ask to solve for b, you are essentially rearranging the equation so that b is alone on one side.

V = 1/3bh

(V)(3) = (1/3bh)(3)

3V = bh

(3V)/h = (bh)/h

3Vh = b

b = 3Vh

4 0
3 years ago
The diameter of your bicycle wheel is 25 inches. How far will you move in two turns of your wheel? Use 3.14 for pi. A.40in. B.75
Kisachek [45]

Answer is: 150 inches

Explanation:

d==> 25 inches

π==>3

solution ==>

circumference ==> π*d

==>3*25 inches

==>75 inches

it will cover 75 cm in 1 turn.

so, in two turns, it will cover ==>2*75 inches

==>150 inches

hence, correct answer is 150 inches.

3 0
4 years ago
Simplify: 6 1/2 ÷ ( 3 1/3 ⋅ 1 )
arlik [135]

Answer:

1.95 or 1 19/20  Hope this helps!

Step-by-step explanation:

PEDMAS

So do the parenthesis first. (3 1/3 * 1) is 3 1/3

Next, Division. 6 1/2 divided by 3 1/3 is 1.95 or 1 19/20

3 0
3 years ago
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