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kkurt [141]
2 years ago
5

A dry Waller wants to order core board for a 15-story elevator shaft. Each floor uses 18.5 sheets.Calculate the number of boards

needed. Add 10%of the total for waste.
Mathematics
1 answer:
dybincka [34]2 years ago
6 0

Answer:

305.25

Step-by-step explanation:

18.5 for one floor, multiply by 15 to get the amount for 15 floors: 18.5*15 = 277.5 sheets

We need to add 10% for waste, meaning 277.5 plus the waste: 1.1*277.5 = 305.25

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Step-by-step explanation:

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3 years ago
Binomial (x - 6) and trinomial (-2x2 + x + 9) are the factors of which of the
djyliett [7]

Answer:

Option (3)

Step-by-step explanation:

If binomial (x - 6) and trinomial (-2x² + x + 9) are the factors of a polynomial then their multiplication will be equal to the polynomial.

(x - 6)(-2x² + x + 9) = x(-2x² + x + 9) - 6(-2x² + x + 9)

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Therefore, Option (3) will be the correct option.

8 0
3 years ago
A dealer bought an article for $7 sold it for $8 bought it back for $9 and then sold it for $10 how much profit did he make
Anit [1.1K]
To the total amount of money that a dealer spent is $7 + $9 or %16. His revenue from selling the same articles is $8 + $10 which is equal to $18. The profit is the difference between the total revenue and total cost. 
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5 0
3 years ago
PLS HELP WILL GIVE BRAINIEST! You are flying in an airplane that has 2 engines. The engines individually have a success rate of
Salsk061 [2.6K]

Answer:

.01%*

Step-by-step explanation:

Individually, they both have a rate of failure of 1%.

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Therefore they have a combined probability of failure of .01%

*Disclaimer!!

I am not the best at this area in math so I would still reference against someone else's answer, but this is my best effort :)

4 0
3 years ago
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ratelena [41]

Answer:

The 2 answers are 4 and -4

Step-by-step explanation:

8 0
3 years ago
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