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Travka [436]
3 years ago
7

What does 6(-2.1k - 2) + (7k + 5) equal​

Mathematics
1 answer:
ikadub [295]3 years ago
5 0

Answer:

Step-by-step explanation:

6(-2.1k-2)+(7k+5)

-12.6k-12+7k+5

-5.6k-7

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Please help. Which number(s) below belong to the solution set of the inequality? Check all that apply. 9x > 117
lord [1]

Answer:

A, d and e

Step-by-step explanation:

So take the numbers a multiply them by nine. if they are more than 117, then they are correct, but with D 9x13 is equal to 117 so it is part of the solution set.

8 0
3 years ago
Mr. Williams can grade 50 essays in 7 hours. His assistant, Mr. Wilfred, can do the same job in 14 hours. His other assistant, M
Elza [17]

Answer:

13.44 or 13 11/25 hours

Step-by-step explanation:

First use this format: number of essays/hours

- they are asking if all three work together, how many hours would it take, so this means addition:

50/7 + 50/14 + 25/6 = 200/x

Second, solve:

- least common multiple: 42

300/42 + 150/42 + 175/6 = 200/x

625/42 = 200/x

- cross-multiply

625x = 8,400

x = 336/25 = 13 11/25 = 13.44 (any one of these answers would work)

5 0
3 years ago
A cylinder has a height of 23 m and a volume of 18,488 m³. What is the radius of the cylinder? Round your answer to the nearest
diamong [38]
The radius to this cylinder is 16.
3 0
3 years ago
Read 2 more answers
Write an<br> explicit formula for<br> then<br> th<br> an.<br> term of the sequence 45, 15,5. ....
7nadin3 [17]

Answer:

The sequence above is a geometric sequence

For an nth in a geometric sequence

u(n) = a {r}^{n - 1}

where n is the number of terms

a is the first term

r is the common ratio

From the question

a = 45

r = 15 / 45

The explicit formula for the sequence is

U(n) = 45(1/3)^n-1

Hope this helps you

7 0
3 years ago
PLS HELP ANSWER ASAP MARK BRAINLEIST​
Alenkinab [10]

X is always dependant to Y. so that should answer the 1st one. the 2nd looks to be around 17-18. 17.5 maybe. and the 3rd is yes cause he does not go to the pool so it isnt any cost.

3 0
3 years ago
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