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
Rama09 [41]
3 years ago
12

Which systems of equations have exactly one solution?

Mathematics
1 answer:
fenix001 [56]3 years ago
4 0
1.
y=2x \\ y=2x+1 \\ \\
2x=2x+1 \\
2x-2x=1 \\
0=1 \\
not \ true - no \ solution

2.
x=5 \\
y=-4 \\
already \ solved - one \ solution

3.
y=x+6 \\
y-6=x \\ \\
y=x+6 \\
y=x+6 \\ \\
x+6=x+6 \\
x-x=6-6 \\
0=0 \\
true - infinitely \ many \ solutions

4.
y=3x+4 \\
y=3 \\ \\
3=3x+4 \\
3-4=3x \\
-1=3x \\
x=-\frac{1}{3} \\ \\
(x,y)=(-\frac{1}{3},3) - one \ solution

The answer is 2 and 4.
You might be interested in
7. What type of angle pair are LMS and SMN? 1.adjacent angles 2.linear pair 3.complementary angles 4.vertical angles
steposvetlana [31]

In this question we have a diagram given. ANd on the basis of that diagram, we have to find the relationship between angles LMS and SMN.

As we see in the diagram, that these angles are one after another. ANd such angles are known as adjacent angles . So these two angles are adjacent angles .

So out of the four options, the correct option is the first option .

4 0
3 years ago
UT bisects WV. WV = ? <br><br> A. SV<br><br> B. 2(SV)<br><br> C. UT<br><br> D. none of the above
ValentinkaMS [17]
2(sv) is the answer for the question
4 0
3 years ago
Which one of the quotients is correct? A) 876 ÷ 43 = 20r17B) 876 ÷ 43 = 20r16C) 876 ÷ 43 = 20r7D) 876 ÷ 43 = 20r6
Olegator [25]

To check which of the quotients is correct, multiply 43 times 20 and add the remainder. The result must be equal to 876.

First, notice that 20 times 43 equals 860.

A)

The remainder is 17. 860 + 17 = 877, which is not equal to 876.

B)

The remainder is 16. 860 + 16 = 876, which is equal to 876.

C)

The remander is 7. 860 + 7 = 867, which is not equal to 876.

D)

The remainder is 6. 860 + 6 = 866, which is not equal to 876.

Since 20*43 + 16 = 876, then the correct quotient is shown in option B:

876 ÷ 43 = 20 r 16

4 0
1 year ago
PLS HELPP
saul85 [17]

Answer:30 yards i think not sure

Step-by-step explanation:

7 0
3 years ago
What is the area of 4x3x+1
Leya [2.2K]

Answer:

12, I think.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • 240 decreased 15% find percent and total amount
    8·1 answer
  • Tamara feed her cat 1/8 canned food each day and the rest dry. She also gives her cat one treat a day. How much dry food does Ta
    12·1 answer
  • 3х + y = — 9<br> y = 5х +7
    13·2 answers
  • Leela made goody bags for her party and put 5 pieces of candy in each bag. She bought gummies and chocolates yo put in het goody
    14·1 answer
  • What is the length of the leg.s of the triangle below
    6·1 answer
  • Choose 3 ratios in simplest form. 3:9
    7·1 answer
  • IF THE RATIO IN A VALENTINE'S
    15·1 answer
  • Which angle is vertical to <br><br> (Will reward)
    11·1 answer
  • A dental filling is nine carats what percent of the filling is gold?
    14·1 answer
  • Which fraction represents the decimal 0.12
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!