All categories

3 years ago

Which system has exactly one solution?

Mathematics

1 answer:

Yakvenalex [24]3 years ago

6 0

Answer:

Step-by-step explanation:

A. when using elimination all number cancel out making it infinite solutions

B. has the same slope meaning the lines are parallel and will never intersect

C. when you isolate the y on 1 side for the 1st equation the equations are the same meaning infinite solutions

so d is the only one left

Hope this helps or makes sense.

You might be interested in

72 is what percent of 60

Julli [10]

The answer is 0.833333333

5 0

4 years ago

The sum of 555 consecutive integers is 270270270. What is the second number in this sequence?

Simora [160]

The second number in the sequence will be 53.

Explanation

The difference between any two consecutive integers is always 1.

Suppose, the five consecutive integers are: $n$ , $n+1$ , $n+2$ , $n+3$ and $n+4$

Given that, their sum is 270. So, the equation will be......

$n+(n+1)+(n+2)+(n+3)+(n+4)=270\\\\ 5n+10=270\\\\5n=270-10=260\\ \\ n=\frac{260}{5}=52$

Thus, the second number in the sequence will be: $n+1= 52+1=53$

4 0

3 years ago

Simplify 8(7x – 1) + 4(x + 5).

Shalnov [3]

8( 7x - 1) +4(x + 5) = 56x - 8 + 4x +20

56x - 8 + 4x + 20 = 60x + 12

Answer = 60x + 12

4 0

3 years ago

Can you help me in question 30?!

patriot [66]

Answer: 24

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLS HELP ME I CANT DO IT AND JMBEING TIMED

tamaranim1 [39]

Answer:

For A+B

a. 0.3+0.8 = 1.1

b. 1.2+1.4 = 2.6

c. 3.4 + 4.2 = 7.6

d. 2.25 + 2.95 = 5.20

For B-A

a. 0.8-0.3 = 0.5

b. 1.4-1.2 = 0.2

c. 4.2-3.4 = 1.2

d. 2.95-2.25 = .070

8 0

3 years ago