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
Alexxx [7]
3 years ago
8

Solve the equation using either addition or substitution. Show all your work

Mathematics
1 answer:
UkoKoshka [18]3 years ago
6 0

Answer:

(x1, y1) = (1, 3)

(x2, y2) = (4, 12)

Step-by-step explanation:

y= x^2 - 4

y= 5x - 8

(substitute the value for y)

x^2 - 4 = 5x - 8

(solve the equation)

x = 1

x = 4

(substitute the values)

y = 5 × 1 - 8

y = 5 × 4 - 8

(solve the equations)

y = -3

y = 12

( the possible solutions are)

x1, y1 = 1, -3

x2, y2 = 4, 12

(check the solutions)

-3 = 1^2 - 4

-3 = 5 × 1 - 8

12 = 4^2 - 4

12 = 5 × 4 - 8

(simplify)

-3 = -3

-3 = -3

12 = 12

12 = 12

(the ordered pairs are the solutions)

You might be interested in
Mrs. Adams buys for bananas and six apples. What is the ratio of bananas to apples?
Triss [41]
Hi there,

This is simple. There are 4 bananas. There are 6 apples.
So if they are asking bananas to apples, the ratio would be:
4:6
And if it needs to be simplified,
2:3

I hope this helps you! Have a great day!
6 0
3 years ago
Help plz! Which equation is shown in the graph above?
harina [27]

Answer:

The answer is C

Step-by-step explanation:

If you count the rise over un to calculate your slope, which in this case it is drop 2 and to the right 3, that gives you the slope of -2/3

7 0
3 years ago
Read 2 more answers
If you wanted to know how big the tiger is, which measurments would you use?
Andreas93 [3]

the answer you are looking for is C

6 0
3 years ago
A scale drawing shows a room to be 3 inches by 4-1/2 inches. carpet, which is $15 per square yard, is to be installed in the roo
Alja [10]
The first thing we must do for this case is to look for the real dimensions.
 We have then:
 (3) * (4) = 12 feet
 (4-1 / 2) * (4) = 18 feet
 We are now looking for the room area:
 (12) * (18) = 216 feet ^ 2
 We consider the following conversion:
 1 yard = 3 feet
 Applying the conversion:
 (216) * (1/3) ^ 2 = 24 yd ^ 2
 The total cost will then be:
 (24) * (15) = 360 $
 Answer:
 
it would cost to install the carpet about:
 
360 $
3 0
4 years ago
Based on this data what is reasonable estimate of the probability that it is sunny tomorrow
Romashka-Z-Leto [24]

No data here.................

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression represents the sum of ( 2x-5y) and (x+y)?
    14·1 answer
  • The scale of a map says that 2 in represents 10 miles. What distance on th map (in centimeters) represents an actual distance of
    7·1 answer
  • 1 1/2. What are the 5 principles our government is based upon? Explain what each means.. 1.The first ten amendments are known as
    10·1 answer
  • The areas of the squares adjacent to two sides of a right triangle are 29.25 units 2 and 13 units 2 . Find the length,x, of the
    10·2 answers
  • Suppose that an experiment is repeated four times. A certain event has probability 1/10 in a single repetition of the
    12·1 answer
  • What is a sum of 1/2 and 3/10 in simplest from
    15·2 answers
  • The temperature early in the morning is 15 °C. The temperature increases by 2 °C for every hour for the
    15·1 answer
  • Please help… translate 7 units right and 2 units up
    5·1 answer
  • Answer plz:<br> Show work also
    5·1 answer
  • The area of a square is (9x^2 - 12 + 4) square units. Determine the length of each side of the square by factoring the expressio
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!