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Over [174]
3 years ago
14

Is x = -4 a valid solution this linear equation?

Mathematics
2 answers:
serious [3.7K]3 years ago
6 0

Answer:

Yes. When –4 is substituted for the variable, the result is a true statement.

Step-by-step explanation:

HACTEHA [7]3 years ago
4 0

Answer:

Yes, -4 is valid.

Step-by-step explanation:

Lets Find out.

So, using substitution:

2(-4)+9(-4-1)=8(2(-4)+2)-5\\-8-45=8(-6)-5\\-53=-48-5\\-53=-53

Yes, -4 is a valid solution.

Hope This Helps!

Stay Safe!

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Tanzania [10]
Answer is B as it is a parabola
6 0
2 years ago
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I will give brainlest thanks
KiRa [710]

Answer: Correct answer is 2nd option 58


Step-by-step explanation:


Value of the x can be determined by finding the inverse of the tangent of angle x.


We know that tangent of any angle = Perpendicular/Base , corresponding to that angle.


So tan x = 8/5

or, tan x = 1.6


so x can be calculated by finding inverse of tan 1.6


Inverse of tan 1.6 = 58 appx


So value of x to the nearest degree is 58.


Hope it helps


Thank you.


7 0
4 years ago
A road crew took 3 days to pave a road. On the first day they paved 2/5 of the road, and on the second day they 1/3 of the road.
bazaltina [42]

Answer:5625 yards

Step-by-step explanation:

2/5=6/15

1/3=5/15

6/15+5/15=11/15

(15/15)-(11/15)=4/15

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375×15=5625

3 0
3 years ago
thomas has earned 800$ and earns 20$ every week by mowing lawns ken has earned 600$ and earns 30$ every week for helping his fat
wariber [46]
We can write this as an equation:
800 + 20x = 600 + 30x
where x is the number of weeks.

To solve, we subtract 20x from both sides and subtract 600 from both sides:
800 - 600 = 30x - 20x \\ 200 = 10x
Then, we simplify by dividing both sides by 10:
\frac{200}{10}  =  \frac{10}{10} x \\ 20 = x
Thomas and Ken have to work 20 weeks for their earnings to be the same.
7 0
3 years ago
A. After the play, Dana, the ticket manager, tells you, "We sold 84 adult tickets and 112 student
miss Akunina [59]

Answer:

The missing information is how much was the unit rate for the adult tickets.

Step-by-step explanation:

You need the missing information about the unit rate for the adult tickets because without that, you cannot answer how much you earned for the play in total. But with the information that we have, we can safely say that we earned 560$ from the students ticket. 560 is not the final answer.

5 0
3 years ago
Read 2 more answers
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