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
aliina [53]
3 years ago
5

1. If two nonvertical lines are parallel, what do we know about their slopes? If two lines are perpendicular and neither is para

llel to an axis, what do we know about their slopes? Why must the lines be nonvertical?
Mathematics
1 answer:
yanalaym [24]3 years ago
6 0

Answer:

Two straight lines with slopes m and m' are parallel when m = m'

Two straight lines with slopes m and m' are perpendicular when m × m' = - 1.

Step-by-step explanation:

Let us assume that the two non-vertical lines in the slope-intercept form are

y = mx + c ........... (1) and  

y = m'x + c' ............ (2)

If those two lines are parallel then we can say the slope of them will be the same i.e. m = m'

Now, if given two straight lines (1) and (2) are perpendicular to each other and neither of them is parallel to the axes, then we can write m × m' = - 1. (Answer)

You might be interested in
What is the area of triangle ABC?
Ann [662]

Answer:

A = 3 units^2

Step-by-step explanation:

The area of a triangle is

A  = 1/2 bh where b is the length of the base and h is the height

b = the distance from B to C = 4 units = 2  ( watch the scale)

h = the distance from A to C along the x axis =6 units = 3  (watch the scale)

A = 1/2 (2)(3)

A = 3 units^2

7 0
3 years ago
Read 2 more answers
−10 > − 5 or −4 < −20
natima [27]

-10 is less than -5 because negative numbers are farther from 0. Same applies to -4 and -20.

3 0
3 years ago
A store charges 6% VAT on all sales.<br>What is the total cost of a shirt marked at $30​
AURORKA [14]

Answer:

$31.8

Step-by-step explanation:

Assuming the 6% tax is separate from the $30, we can use this equation:

Total = Cost + Tax  (pretty self explanatory)

Method 1

Total = $30 + (6% * $30)

Total = $30 + $1.8

Total = $31.8

Method 2

Total = $30 * 1.06          (The 1 is the original cost, the .06 is the 6% tax)

Total = $31.8

8 0
3 years ago
Which is the diameter of a rectangle whose circumference is 13653 cm and one side is 5431 cm​
leonid [27]

Answer:

See below

Step-by-step explanation:

If by circumference you meant perimeter and diameter you mean length, then here is my answer.

Perimeter = 2L+ 2W

13653= 2*L + 2*5431

13653= 2L + 10862     Subtract 10862 from both sides

2791= 2L Divide by 2

L= 1395.5

The diameter is 1395.5

6 0
3 years ago
Simplify x 1/2 × x 2/3
victus00 [196]
X3/4 is the answer for this question
3 0
2 years ago
Other questions:
  • The sum of two consecutive intergers is 139 find the intergers
    9·2 answers
  • Find the future value of the loan. $34300 loan at 3.5% for 4 months
    7·1 answer
  • Can someone help me with this please?​
    12·1 answer
  • Jason is training for a triathlon and needs to swim a certain distance for today's workout. If he swims at the rec center pool,
    11·1 answer
  • What is the best approximation for the area of a circle with a diameter of 19 meters?
    9·1 answer
  • Factor completely: 2x3 + 14x2 + 6x + 42
    5·2 answers
  • Using a calculator, evaluate the cosine of 18* to the hundredths decimal place: A. 0.951 B. 0.95 C. 0.66 D. 0.660
    13·2 answers
  • A line containing the points (4,4) and (8,9)
    8·2 answers
  • What is the slope of the line that goes through the following two points?
    10·1 answer
  • You move right 1 unit and left 6 units. You end at (0, 10). Where did you start?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!