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RSB [31]
2 years ago
6

Help. pleaseeeeeeeeeeeeeee3e​

Mathematics
2 answers:
Elan Coil [88]2 years ago
7 0

Answer:

12 3/4

Step-by-step explanation:

jekas [21]2 years ago
6 0

Answer:

-51/4 or -12 3/4

Step-by-step explanation:

First,

We need to convert the mixed fractions into improper fractions

-4 \frac{1}{2} = -9/2

2\frac{5}{6} = 17/6

-\frac{9}{2}*\frac{17}{6}

We can use cross canceling for 9 and 6

So,

\frac{-3}{2}*\frac{17}{2}

=\frac{-51}{4}

Hope this helps!! :)

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3 years ago
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The nth term of a sequence is 8(n+3)<br> what are the first four terms?
8090 [49]

Answer:

32, 40, 48, 56

Step-by-step explanation:

a_n= 8(n+3)...(given)  \\\\   a_1= 8(1+3) = 8 \times 4 = 32 \\  \\ \: a_2= 8(2+3) = 8 \times 5 = 40 \\  \\ a_3= 8(3+3) = 8 \times 6 = 48 \\  \\  a_4= 8(4+3) = 8 \times 7 = 56 \\

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3 years ago
A deep-sea diver explores fish at an elevation of -20.5 feet. Then the diver descends 60.5 feet the elevation of the top of the
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3 years ago
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Select all ratios equivalent to 21:14.<br> 14:10, 8:4, 9:6, 12:21
eduard
The ratio 21:14 when divided by 7 on each side, is the smallest ratio that has the same value as 21:14. this becomes 3:2

then multiply both sides by a few different numbers on both sides each ,

for example, 3:2 is the same as
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9:6 (3:2 times 3)
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the ratio of the right number I
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2 years ago
In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard dev
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Answer:

0.3114

Option d is right

Step-by-step explanation:

Let X be the time spent on a treadmill in the health club

Given that  research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard deviation of 5.4 minutes

Also given that X is normal

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= P(30

round off to two decimals tog et

the probability that randomly selected individual would spent between 30 and 40 minutes on the treadmill is 0.31

Hence option d is right

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3 years ago
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