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babunello [35]
3 years ago
7

if a line segment has endpoint A(3x+5,3y) and B(x-1,-y), what are the coordinates of the mid point of line AB

Mathematics
1 answer:
My name is Ann [436]3 years ago
7 0
Midpoint formula - <u>\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)</u>
&#10;\left(\dfrac{3x+5+x-1}{2},\dfrac{3y-y}{2}\right)=\\&#10;\left(\dfrac{4x+4}{2},\dfrac{2y}{2}\right)=\\&#10;(2x+2,y)
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How would i find the length of g?
klasskru [66]

Answer:

g=28.8\ units

Step-by-step explanation:

see the attached figure with letters to better understand the problem

step 1

In the right triangle BDC

Find the value of j

Applying the Pythagorean Theorem

j^2=5^2+12^2

j^2=169\\j=13\ units

step 2

In the right triangle ABD

Applying the Pythagorean Theorem

h^2=12^2+g^2 ----> equation A

step 3

In the right triangle ABC

Applying the Pythagorean Theorem

(g+5)^2=h^2+13^2 ----> equation B

step 4

Substitute equation A in equation B

(g+5)^2=(12^2+g^2)+13^2

solve for g

g^2+10g+25=144+g^2+169\\10g=288\\g=28.8\ units

4 0
3 years ago
17. The coordinates of the vertices of ADEF are
Radda [10]
It is NOT a right triangle because a^2+b^2 does not equal c^2.
[ you can use my work for more explanation if your teacher wants it done a certain way]

6 0
3 years ago
What is a complex series notation that equals one
Romashka [77]

we know the complex number has standard form a+ib

Inorder to find our answer ib^2 should.be 1

Ex:-

2-i

2:-

\\ \sf\longmapsto 2+2i^2

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3 0
3 years ago
Read 2 more answers
A car rental agency rents cars for $26.20 per day plus $0.35 per mile driven. Your travel budget is $200. Write an inequality th
laila [671]

For this case we have to:

x: Represents the number of miles that can be traveled in a day

We have that the cost of daily car rental is given by the following expression:

26.20 + 0.35x

If the person has a budget of $200 then we have to:

26.20+0.35x\leq200\\0.35x\leq200-26.20\\0.35x\leq173.8\\x\leq\frac{173.8}{0.35}\\x\leq496.57

Thus, you can travel 496 miles in one day.

Answer:

26.20 + 0.35x \leq200

6 0
3 years ago
PQRS is a parralelogram. the position vector of Q R and S are 5i +7j, -3i-8j and -4i-6j. find the position vector of P
g100num [7]

The value of the variable x = 6 and y = 5. Then the position vector of P will be 6i + 5j.

<h3>What is the equation of a line passing through two points?</h3>

The equation of line is given as

y = mx + c

Where m is the slope and c is the y-intercept.

PQRS is a parallelogram. the position vector of Q R and S are 5i +7j, -3i-8j and -4i-6j.

Then the point of Q, R, and S will be (5, 7), (-3, -8), and (-4, -6).

Let the point P be (x, y).

We know that the slope of the line QS and PQ will be same and line is passing through (-3, -8).

y = 1.444x + C

-8 = 1.444 (-3) + C

C = -3.667

Then the equation will be

y = 1.444x – 3.667  …1

The slope of the line PQ and RS will be same and line is passing through (5, 7).

y = -2x + D

7 = -2 (5) + D

D = 17

Then the equation will be

y = -2x + 17  …2

By solving equation 1 and 2, we have

x = 6 and y = 5

Then the position vector of P will be

⇒ 6i + 5j

The graph is given below.

Learn more about straight-line equations here:

brainly.com/question/380976

#SPJ1

6 0
2 years ago
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