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
Andrew [12]
3 years ago
7

The solution of a system of linear equations is (4,-2).

Mathematics
1 answer:
Romashka [77]3 years ago
3 0
Y=-x+2
2y=x-8
these two lines both go through the point (4,-2)
solve: substitute the y in the second equation with (-x+2):
2(-x+2)=x-8
-2x+4=x-8
add 2x on both sides:
4=3x-8
add 8 on both sides: 12=3x
divide by 3 on both sides: x=4.
find y: y=-x+2=-4+2=-2
the solution is (4,-2)
You might be interested in
I also need help with this one too
MaRussiya [10]

Answer:

5x-1

Step-by-step explanation:

f(x) = 3x-2

g(x) = 2x+1

(f+g) (x) = 3x-2 + 2x+1

Combine like terms

            = 5x -1

8 0
3 years ago
Read 2 more answers
Help on number six please (sorry for the beg I gotta say this is hard)
Vladimir79 [104]
False, False, True. Negative numbers, and positive numbers are the exacts same distance from 0.
7 0
3 years ago
What is an example of parallel or perpendicular lines in every day life​
Olegator [25]

Answer: Road lines

Step-by-step explanation:

Road lines are parallel lines as they are always the same distance from each other, and never intersect.

6 0
3 years ago
Hay algun cuerpo en la naturaleza que carezca de volumen? por favor quiero una respuesta al grano
leva [86]
<span>Un "cuerpo puntual" o "masa puntual" o "punto material" como una entidad ideal que concentra toda la masa a considerar a un punto, para fines de ciertos analisis en dinamica y cinematica. Si nos referimos a un "punto" por ser infinitamente pequeno. </span>
3 0
3 years ago
4. Find the volume of the figure. The base is a square.
GREYUIT [131]

Answer:

A) 283500 ft³

B) 1057.26 π in³

Step-by-step explanation:

A) Volume of square based pyramid

= 1/3 × Area of the base × height

= 1/3 × (90 ft)² × 105 ft

= 283500 ft³

B) This figure is a composite figure

Step 1

Find the volume of the cone

=1/3 πr²h

r = radius = 8.5 in

h = height = 10 in

= 1/3 × π × (8.5 in)² × 10 in

= 240.83333333 π in³

≈ 240.83 π in³

Step 2

Find the volume of the cylinder

= πr²h

= r = radius = 8.5 in

h = height = 11.3 in

= π × (8.5 in)² × 11.3 in

= 816.425 π in³

≈ 816.43π in³

Volume of the figure = (240.83 π + 816.43 π) in³

= 1057.26 π in³

7 0
3 years ago
Other questions:
  • Value of the irrational e is
    11·1 answer
  • How much sleep does a Jaguar get in a year
    12·2 answers
  • Marta bought new fish for her home aquarium. She bought 3 guppies and 2 platies for a total of $13.95. Hank also bought 3 guppie
    8·1 answer
  • Candy is on sale for $0.75 each. you have a coupon for $0.25 off your total purchase. Write a function rule for the cost of n pi
    10·1 answer
  • What is the approximate radius of a sphere with a volume of 1436cm to power of 3
    6·1 answer
  • Whats 25/7 as a mixed number?
    6·1 answer
  • I need help on this question!!!Feel free to explain your answer! :)
    10·2 answers
  • A dining set is priced at $785. If the sales tax is 7 percent, what is the cost to purchase the dining set? Round to the nearest
    12·1 answer
  • Long division of 7/20​
    11·1 answer
  • (2+3+5)+(1÷√(7+5))+(1÷(5+√(4+3×5))−(1÷(6−√(3 +5))
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!