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
Blizzard [7]
2 years ago
12

The graphs of two linear equations ax + by = c and bx - ay = c, where a, b, c are all not equal to zero.

Mathematics
1 answer:
marin [14]2 years ago
4 0
Let us find the slopes of the two lines

ax+by=c, slope m1 = -a/b

bx-ay=c, slope m2 = b/a

m1*m2 = (-a/b)(b/a) = -1

Therefore the two lines are perpendicular so the answer is D
You might be interested in
10a. The y-intercept of the estimated line of best fit is at (0,b). Enter the approximate value of b. Round your estimate to the
vredina [299]

Answer:

The answer is below

Step-by-step explanation:

The equation of a straight line is given as:

y = mx + b; where m is the slope of the line and b is the y intercept (that is value of y at x = 0).

a) From the graph, we can see that the straight line touches the y axis at $100 in which the temperature is 0 degrees. Therefore the y intercept is:

(0, 100)

b) The slope of the line can be gotten by taking two points that the line passes through. Using the points (0, 100) and (12, 500):

slope(m)=\frac{y_2-y_1}{x_2-x_1} =\frac{500-100}{12-0} =33.3

4 0
2 years ago
Evaluate the expression when a = -3 and b=5.<br> a-4b<br> x<br> I<br> ?
Juliette [100K]
-3-4(5)
-4(5)=-20
-3-20
The answers is -23
8 0
2 years ago
X^2+4y^2=36 the lenght of the major axis is?
musickatia [10]

Answer:

Step-by-step explanation:

x² + 4y² = 36

divide by constant

x²/36 + y²/9 = 1

x²/6² + y²/3² = 1

6>3, so length of major axis is 2×6 = 12

4 0
2 years ago
A cone has a height of 2.5 in. and a radius of 5 in. What is the volume of the cone? (Use 3.14 for pi. Round the answer to two d
Pie

Answer:

65.45

Step-by-step explanation:

you do 3.14*5^2*2.5/3

7 0
2 years ago
A TV has an original price of $499. Enter the new price after the given percent of change. 30% increase. ​
const2013 [10]

Answer:

<h2>$648.70</h2>

Step-by-step explanation:

30% of 499 is 149.70

499+149.70=648.70

6 0
2 years ago
Other questions:
  • What is 29.8 divided by 3
    7·2 answers
  • Each part of a race is 1/10 mile long. Marsha finished 5 part of the race.How far did marsha race?
    8·1 answer
  • keisha runs each lap in 8 minutes. she will run less than 7 laps today. what are the possible numbers of minutes she will run to
    6·2 answers
  • A coin will be tossed three times, and each toss will be recorded as heads (
    5·1 answer
  • What is another name for 23 ten thousands?
    6·1 answer
  • Determine if the lines are parallel, perpendicular or neither:<br> 1. x + 4 = y and y – x = -3
    6·2 answers
  • The acceleration, a, of an object produced when a force is applied is given by the following formula, where F represents the for
    10·1 answer
  • Which sentence represents this
    5·2 answers
  • Please help. quickly if possible
    7·2 answers
  • Rewrite the following expression as a single logarithm 2log(x+3)-3log(x-7)+5log(x-2)-log(x^2)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!