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3 years ago

1.7.3 Quiz: Intersecting Lines and Proofs

Mathematics

2 answers:

faltersainse [42]3 years ago

7 0

Answer:

Perpendicular lines.

Perpendicular lines are lines that intersect at a right (90 degrees) angle.

GalinKa [24]3 years ago

6 0

Perpendicular lines are 2 lines that intersect each other creating a 90 degree angle

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!!!!Pls help!!!!!

hichkok12 [17]

Answer:

(2,4) is a solution to this system of equations

Step-by-step explanation:

Given system of equation are

$y=2x \hfill (1)$

$y=\frac{-1}{2}x+5\hfill (2)$

To find the solution of the given system of equations

To Check that (2,4) is a solution to this system or not

Solving equations (1) and (2)

From equation (1) and y=2x

Now substitute y=2x is equation (2)

$2x=\frac{-1}{2}x+5$

$\frac{-1}{5}x+5-2x=0$

$5-\frac{x}{2}-2x=0$

$5-\frac{x+4x}{2}=0$

$5-\frac{5x}{2}=0$

$\frac{10-5x}{2}=0$

10-5x=0

-5x=-10

$x=\frac{10}{5}$

Substitute x=2 in equation (1)

y=2x

y=2(2)

Therefore y=4

Therefore the solution is (2,4)

Therefore (2,4) is a solution to the system of equations.

4 0

3 years ago

Solve the system of equation by elimination.

olya-2409 [2.1K]

B.) no solution......

7 0

3 years ago

Select the correct answer.

gulaghasi [49]

The correct answer is B.

7 0

2 years ago

Use the graph to complete the statement. O is the origin.<br><br> T<2,1> ο r(90°,O) : (4,-1)

faltersainse [42]

Answer:

(3,5)

Step-by-step explanation:

5 0

2 years ago

Calculate the mean of the following list of numbers: 3, 5, 2, 10, 6, 3, 7, 3

BabaBlast [244]

Answer:

4.875

Step-by-step explanation:

The mean is the average of all the numbers or all the numbers added up divided by how many numbers so

3+5+2+10+6+3+7+3=39 and there are 8 numbers so

39/8 is 4.875 or 4 7/8

4.875

6 0

3 years ago