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Levart [38]
2 years ago
15

Which of the following expressions is correct?

Mathematics
1 answer:
AysviL [449]2 years ago
8 0

Answer:

-7.5x3+(20+2.5)=0

this one is equal to 0 ;)

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What is the 45th term of the sequence generated by the formula (-1) 2n+1 ?
Natalija [7]

Answer:

−0.989010989010

Step-by-step explanation:

what is the 45th term of a sequence generated by the formula tn=(-1)^n * (2n/2n+1)?

When n= 45

tn=(-1)^n*(2n/2n+1)

tn = (-1)^45 * ( 2(45) / 2(45) + 1

= -1 * 90 / (90+1)

= -90 / 91

= −0.989010989010

The 45th term of the sequence generated by the formula tn=(-1)^n*(2n/2n+1) is −0.989010989010

5 0
3 years ago
The cost of electricity in a certain city is $0.08 for each of the first 300kWh (kilowatt-hours) and $0.13 for each kilowatt-hou
Ivahew [28]

Step-by-step explanation:

0.08*300 + 0.13x = 51.95

Multiply thru by 100 to get:

8*300 + 13x = 5195

13x = 5195-2400

13x = 2,795

x = 215 hours

7 0
3 years ago
Read 2 more answers
Which are two ways to represent the slope, m, of the line shown?
enot [183]
A is the correct answer
7 0
3 years ago
500 ML = __ L<br><br> Perform numerical calculations
prohojiy [21]

Answer:

500*10^6 L or 5.00*10^8 L.

Step-by-step explanation:

Capital M shows mega which equal to 10^6.

So, 500 ML = 500*10^6 L

or 5.00*10^8 L.

3 0
3 years ago
Read 2 more answers
6xTo the -1st power times Y to the fifth power times 4X to the -4th power times Y to the -2nd power
Andrew [12]

i don't know how to type the answer out but it's on the work i just did ⬆️

7 0
3 years ago
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