1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
USPshnik [31]
3 years ago
6

I need these answers checked to see if I did them correctly.

Mathematics
1 answer:
madam [21]3 years ago
4 0
They look correct to me!
You might be interested in
Line g passes through points (5, 9) and (3, 2). Line h passes through points (9, 10) and (2, 12). Are line g and line h parallel
icang [17]

For this case we find the slopes of each of the lines:

The g line passes through the following points:

(x_ {1}, y_ {1}) :( 3,2)\\(x_ {2}, y_ {2}) :( 5,9)

So, the slope is:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {9-2} {5-3} = \frac {7} {2}

Line h passes through the following points:

(x_ {1}, y_ {1}) :( 9,10)\\(x_ {2}, y_ {2}) :( 2,12)

So, the slope is:

m = \frac {y_ {2} -y_ {1}}{x_ {2} -x_ {1}} = \frac {12-10} {2-9} = \frac {2} {- 7} = - \frac {2} {7}

By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.

It is observed that lines g and h are not parallel. We verify if they are perpendicular:

\frac {7} {2} * - \frac {2} {7} = \frac {-14} {14} = - 1

Thus, the lines are perpendicular.

Answer:

The lines are perpendicular.

8 0
2 years ago
HELP ASAP!
Arturiano [62]

Answer:

c

Step-by-step explanation:

5 0
2 years ago
Thomas bought a desk with a retail sales price of $129 and  paid $10.32 sales tax. What is the sales tax rate where Thomas bough
ss7ja [257]
8% because 129x0.08=10.32
7 0
3 years ago
Read 2 more answers
The equation y=7.6x represents a proportional relationship. What is the constant of proportionality?
SCORPION-xisa [38]
I’m not too sure fam
8 0
2 years ago
Read 2 more answers
Write an equation of a line in slope intercept form that passes through the given points:
GarryVolchara [31]

Answer:

The answer is y= -1/3x-5

Step-by-step explanation:

(9, -8) and (-6, -3)

m= y²-y¹/x²-x1

m= (-3)-(-8)/(-6)-9

m= 5/-15

m=-1/3

y=mx+b

y=-1/3x+b

-3=-1/3(-6)+b

-3=2+b

-2 -2

-5=b

The answer is y=-1/3x-5

3 0
3 years ago
Other questions:
  • Please help this assignment is late
    7·1 answer
  • |5x+8|=|10x+7| solve the equation.
    5·1 answer
  • The functiong(x)is graphed below.
    7·1 answer
  • what are the coordinates of a point on the unit circle if the angle formed by the positive x- axis and the radius is 45°??
    7·1 answer
  • The amount of data left on a cell phone plan is 6 GB after B days 1.5 GB of data is used every day. How much data is available a
    15·1 answer
  • Is this a function or not?
    6·2 answers
  • 3 2/5 + 4 2/7 = _________
    5·1 answer
  • Triangle ABC and triangle PQR each have two sides whose lengths are 7 and an angle whose measure is 40. Are the triangles congru
    12·1 answer
  • 58 x 64 is the same as:
    10·1 answer
  • Below. What is m∠1?<br><br> m∠1 =
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!