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3 years ago

Find the value of x that makes p || q

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

7 0

Answer:

x=40

Step-by-step explanation:

80°+(2x+20)°= 180°... (co-interior angles are supplementary)

2x=180 - 80 - 20

2x=80

(divide both sides by the coefficient of x which is 2)

x=80÷2

x=40

Check:

(2x+20) must be equal to 100

Let x=40

Therefore :

2X40+20

=100

kvv77 [185]3 years ago

5 0

Answer:

x = 40

Step-by-step explanation:

These angles are known as same-side interior angles. They are supplementary angles meaning they have a sum of 180°.

$2x+20+80=180\\2x+100=180\\2x=80\\x=40$

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nordsb [41]

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3 years ago

NEED HELP QUICK! Points P, Q, and R are shown on the number line. What is the distance between point P and point R? A) 47 units

FromTheMoon [43]

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3 years ago

Without solving, match the system of linear equations on the left with the number of solutions on the right.

hram777 [196]

Answer:

Step-by-step explanation:

you can do these by just looking at the equations and comparing the slopes and the y intercepts.

first, put ur equations in y = mx + b form where m is ur slope and b is ur y intercept. Thankfully, these are already in that form.

second, find ur slopes....they will be in the m position

y = mx + b

y = -x + 4 y = 2x + 3

slope = -1 slope = 2

third, find ur y intercepts....they will be in the b position

y = mx + b

y = -x + 4 y = 2x + 3

y int = 4 y int = 3

fourth, compare the slopes and y int's of equation 1 and equation 2

here are some rules...

if the slope and the y int are different in each equation, then there is only 1 solution

if the slope and y int are the EXACTLY the same in the simplest form of each equation, there is infinite solutions

if the slopes are the same, but the y int's different, there is no solution

so ur 2 equations have different slopes and different y int's.....

therefore, there is only 1 solution <=====

6 0

4 years ago

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ArbitrLikvidat [17]

Answer:

-4√10 / 5 or -8√10 / 5

Step-by-step explanation:

See attachment for calculation

6 0

4 years ago

Four high school students are working on a math problem to find the solution to (2x - 3)² = 255. Each student got a different an

Ainat [17]

Answer:

Step-by-step explanation:

$15^{2} =255$

(2*9)-3

18-3=15

4 0

3 years ago