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AlekseyPX
2 years ago
5

Which of the following is irrational?

Mathematics
1 answer:
monitta2 years ago
8 0

Answer:

√6 is irrational.

Step-by-step explanation:

The square roots of the others are rational

sqrt 0.16 = 0.4

sqrt 900 = 30

sqrt25 = 6.

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A group of farmers had to plough 112 acres of land per day. Exceeding the schedule by 8 acres per day, the farmers finished plow
mihalych1998 [28]

The farmers had to plough a total of 1,456 acres of land.

Step-by-step explanation:

Step 1; The group of farmers ploughed at a rate of 112 acres of land a day which was 8 acres more than schedule.

Scheduled rate = 112 acres per day - 8 acres = 104 acres per day.

So the farmers were supposed to plough 104 acres a day according to schedule.

Step 2; If the farmers finished a day earlier, it means they had to have completed ploughing 104 acres extra by doing an extra 8 acres a day.

So days took to complete ploughing = \frac{104}{8} = 13 days.

So in 13 days, they should have ploughed 13 × 104 = 1,352 acres but due to their increased rate, they ploughed 13 × 112 = 1,456 acres in 13 days.

Difference in acres ploughed = 1,456 - 1,352 = 104 acres.

So the farmers ploughed 1,456 acres in 13 days.

3 0
3 years ago
Cans of corn are on sale at 10 cans for $4. How much will 15 cans cost?​
lesantik [10]

Answer:

6 dollars

Step-by-step explanation:

10 cans and then 5

divide cost by 2 (1/2)

8 0
2 years ago
Read 2 more answers
Compare standard deviation and residual analysis<br><br> Describe when/how each are used.
Alexandra [31]

Answer:

standard deviation is a quantity calculated to indicate the extent of deviation for a group as a whole.

Residual analysis is used to assess the appropriateness of a linear regression model by defining residuals and examining the residual plot graphs.

Step-by-step explanation:

6 0
3 years ago
Given the function f(x) = 5(x+4) − 6, solve for the inverse function when x = 19.
vlada-n [284]
Y = 5(x+4)-6 
x = 5(y+4)-6 
x = 5y +20 - 6 
x= 5y +14 
5y = x-14 
y = (x-14)/5 
<span>
when x = 19, y = (19-14)/5 </span>
y = 5/5 
<span>y=1

In short, Your Answer would be Option 2

Hope this helps!</span>
4 0
3 years ago
Read 2 more answers
A school requires 2 computers for every 5 students. If a school has 145 students, how many computers do they need?
defon

Step-by-step explanation:

145/5=23

23×2=46 computers

4 0
3 years ago
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