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Usimov [2.4K]
2 years ago
13

Heeellllllllllllllllppppppppppp

Mathematics
1 answer:
AveGali [126]2 years ago
3 0

Answer:

Step-by-step explanation:

Xét ∆ABC có:

C= 180-30-45=105°

D= 180-105-45÷2= 75-22,5= 52,5°

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Evaluate the following polynomial. (32mn2 + 50m2n) - (10mn2 - 16m2n + 64).
zaharov [31]
I think the answer is 22mn2+66m2n-64 since there are no more like terms
7 0
4 years ago
Cell phone plan A costs 79 per month and comes with a free 500 phone. Cell phone plan B costs 50 per month but does not come wit
meriva

Answer: it will take 25 months

Step-by-step explanation:

Let x represent the number of months that it will take for the cost of both plans to be the same.

Cell phone Plan A costs $70 per month and comes with a free $500 phone. This means that the total cost of x months with plan A would be

70 × x = $70x

Cell phone plan B costs 50 per month but does not come with a phone. If you buy the 500 phone and choose plan B, then the total cost of x months with plan B would be

500 + 50 × x = 500 + 50x

To determine the number of months until your cost is the same as Plan A's, we would equate both costs. It becomes

70x = 500 + 50x

70x - 50x = 500

20x = 500

x = 500/20 =25

8 0
3 years ago
Which product is negative​
vovangra [49]

Answer:

4th option because the two negatives will become positive and the 3rd will make it negative again

5 0
3 years ago
Read 2 more answers
Solve for N: 3n - 7 = 6n - 2n
jonny [76]

Answer:

-7

Step-by-step explanation:

1. Combine Like Terms

3n-7=4n

2. Subtract 3n on both sides.

-7=n

3. You got your answer:)

3 0
3 years ago
For example( and this is straight from the paper), "15 people in 3 equal rows."
densk [106]
At a race, there are 3 rows with 15 people in each row. How many total people are there?

Numerical expression- 15 times 3

(Idk if this helped very much but it's worth a shot)
6 0
3 years ago
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