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ivann1987 [24]
3 years ago
5

It's from the chapter : "exponents and powers"i need the workings tooplease help​

Mathematics
1 answer:
labwork [276]3 years ago
5 0

Answer:

505/19

Step-by-step explanation:

Easy

so [3^3-(1/2)^(-3)*(1/19)]

simplify

3^3-8/19

3^3=27

27-8/19

convert element to fraction

(27*19)/19-8/19

combine

(27*19-8)/19

505/19

Have a wonderful day ask me if you have more questions about MATH that goes for anyone who needs math help

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What is the slope of this line? <br> A.) −1/2<br> B.) 1/2<br> C.) 2<br> D.) I don't know.
gregori [183]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
Amy used a total of 7 1/4 gallons of gas while driving her car. Each hour she was driving, she used 5/6 gallons of gas. What was
nika2105 [10]

Answer:  8  7/10  hours

whole part = 8

fractional part = 7/10

========================================================

Work Shown:

x = number of hours driving

(5/6)x = total number of gallons of gas used

(5/6)x = 7 & 1/4

(5/6)x = 7 + 1/4

(5/6)x = 28/4 + 1/4

(5/6)x = 29/4

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x = (29*6)/(4*5)

x = 174/20

x = 87/10

x = (80+7)/10

x = 80/10 + 7/10

x = 8 + 7/10

x = 8 & 7/10

This is the same as writing 8  7/10

Amy drove 8 full hours, plus an additional 7/10 of an hour.

That mixed number converts to the decimal value 8.7

7 0
1 year ago
A quotient of a number 4 at most 5
Kitty [74]

The answer would be x/4<=5

8 0
3 years ago
An airplane flies at a constant speed. It can travel a distance (
CaHeK987 [17]
I will be right back to help
7 0
3 years ago
A repeated-measures study and an independent-measures study both produce a t statistic with df = 20. The repeated-measures study
Y_Kistochka [10]

Answer:

B. False

Step-by-step explanation:

We have that both studies have the same production for what the first part of the statement mentions.

"A repeated-measures study and an independent-measures study both produces a t statistic with df = 20"

And they ask us if it is false or true, if one produces more than the other.

Starting from the first statement, the second statement is false because they produce the same, therefore they will be the same subjects.

5 0
3 years ago
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