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
BabaBlast [244]
1 year ago
12

Solve the following system by graphing and identify the point of intersection -5x+2y=-4 2x-y=2

Mathematics
2 answers:
FrozenT [24]1 year ago
8 0

Answer: Point of intersection (0, -2)

Step-by-step explanation:

guajiro [1.7K]1 year ago
8 0

Answer:

S =  (0, -2)

Step-by-step explanation:

Convert both standard form equations to slope-intercept form.

-5x+2y=-4 ⇒ y = 5/2(Decimal form: 2.5)x - 2

2x-y=2 ⇒ y = 2x - 2

Given:

⇒ L1 = y = 5/2x - 2

⇒ L2 = y = 2x - 2

The intersection is point:

⇒ S = (0, -2)

Steps:

To find intersection point we need to solve the following system of equations.

  • y = 5/2x - 2
  • y = 2x-2

STEP 1: Solve for x

5/2x - 2 = 2x - 2

5/2x - 2x = -2 + 2

1/2x = 0

x = 0

STEP 2:  Solve for y by substituting x = 0 into  first equation.

y = 5/2 * 0 - 2 = 0 - 2 = -2

You might be interested in
Rearrange the following group of numbers from smallest to largest. 2.7, 2.06, 2
allochka39001 [22]
2,2.06,2.7
Look at this
This is the reason
2, 2.06, 2.70
6 0
3 years ago
Plz explain step by step ​
kirill115 [55]

Step-by-step explanation:

a=20⁰ vertically opposite angles are equal

b=160⁰ sum of angles on a straight line add up to 180⁰

(180⁰-20⁰=60⁰)

c=125⁰ sum of angles on a straight line add up to 180⁰

(180⁰-35⁰-20⁰=125⁰)

8 0
2 years ago
Elmer has a collection of 300 fossils. Of those, 21% are fossilized snail shells. How many fossilized snail shells does Elmer ha
kakasveta [241]
Use the percent proportion

 21          x
——  = —— 
100        300

to solve :
21 x 300 = 6300
6300 ÷ 100 = 63

Answer = 63 of Elmer’s shells are fossilized snail shells :)
4 0
3 years ago
In a lab experiment, 2400 bacteria are placed in a petri dish. Due to the conditions, the
o-na [289]

Answer:

38,400 bacteria

Step-by-step explanation:

Because there are 24 hours in a day, it will double 4 times

2400times 2 equals 4800 (1st)

4800 times 2 equals 9600 (2nd)

9600 times 2 equals 19200 (3rd)

19200 times 2 equals 38400 (4th)

5 0
3 years ago
What is the base 8 representation of the number 11100111
katovenus [111]

If the given number is in base 2, that means

11100111₂ = 2⁷ + 2⁶ + 2⁵ + 2² + 2 + 1

8 = 2³, and so we have

11100111₂ = 2 • (2³)² + (2³)² + 2² • 2³ + 2² + 2 + 1

11100111₂ = 3 • 8² + 4 • 8 + 7

11100111₂ = 347₈

Because 8 is the 3rd power of 2, we can also split up the given number into block of length up-to 3, then convert each block directly into base 8:

11 100 111

11₂ = 2 + 1 = 3

100₂ = 2² = 4

111₂ = 2² + 2 + 1 = 7

so again we get 347₈.

6 0
3 years ago
Other questions:
  • A barrel in Jim's yard contains 60 gallons of water. Water leaks out of the barrel at a rate of 1 gallon every 10 minutes. Creat
    11·2 answers
  • What is the complement of 11 degrees
    10·2 answers
  • Write 27/64 in the simplest form
    8·2 answers
  • Please help! I need to get these questions done, you don't have to answer all of them
    11·1 answer
  • 625×2 is not 1,350, it is actually 1,250 but 675×2 is 1,350 though... it's ok everybody makes mistakes anyways, that's the best
    12·1 answer
  • Is 180 divisilbe by 9
    9·2 answers
  • Mark transferred songs from his computer onto his portable music player. He transferred 2 6/7 songs in 1 2/3 minutes. How many s
    7·2 answers
  • What is the degree of 7x^6-6x^5+2x^3+x-8
    13·2 answers
  • Please help no links with c and d please
    13·2 answers
  • True or false?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!