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mote1985 [20]
3 years ago
6

When all the variables cancel out in an equation, how do you know if there are no solutions or infinite solutions?

Mathematics
1 answer:
Ivahew [28]3 years ago
4 0
If a number equals the same number, there are infinite solutions
Example: 5=5, which is true, so there are infinite solutions
If a number equals a different number, there are no solutions
Example: 5=2, which isn’t true
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CUCU
puteri [66]

Answer:

B

Step-by-step explanation:

well, the sequence are in the form

a1, a2, a3, a4, a5, ... , an

a1 = first term = 45

you can plug 1 to any of the option

and ended with B the only function that satisfies what we need

6 0
3 years ago
(02.02)Line segment EF is shown on a coordinate grid: A coordinate plane is shown. Line segment EF has endpoints negative 3 comm
Andrew [12]

Answer:

E'F' and EF are equal in length

Step-by-step explanation:

we have

The coordinates of point E(-3,2) and F(-1,2)

we know that

The rule of the reflection across the x-axis is

(x,y) ------> (x,-y)

so

Applying the rule of reflection across the x-axis

E(-3,2) -------> E'(-3,-2)

F(-1,2) --------> F'(-1,-2)

using a graphing tool

see the attached figure to better understand the problem

therefore

E'F' and EF are equal in length

7 0
3 years ago
Read 2 more answers
Could you multiply a number by 2 and get a product of 15
Juliette [100K]
No you can't multiplying by two I 's basically adding up two numbers till you get it
7 0
3 years ago
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In one semester, doug and Laura spent a combined 250 hours in the tutoring lab. If doug spent 40 more hours in the lab then Laur
aksik [14]

Answer:

Step-by-step explanation:

What we have is a general equation that says this in words:

Laura's hours + Doug's hours = 250 total hours

Since we don't know either person's number of hours, AND since we can only have 1 unknown in a single equation, we need to write Laura's hours in terms of Doug's, or Doug's hours in terms of Laura's.  We are told that Doug spent Laura's hours plus another 40 in the lab, so let's call Laura's hours "x".  That makes Doug's hours "x + 40".  Now we can write our general equation in terms of x:

x + x + 40 = 250 and

2x = 210 so

x = 105

Since Laura is x, she worked 105 hours in the lab and Doug worked 40 hours beyond what Laura worked.  Doug worked 145.  As long as those 2 numbers add up to 250, we did the job correctly.  105 + 145 = 250? I believe it does!!

8 0
3 years ago
Dwayne hikes 60 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles
NNADVOKAT [17]

12 days. 60 is a quarter of 240. So, multiply 60 by 4 to get 240.

7 0
3 years ago
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