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lapo4ka [179]
3 years ago
6

How do you know if a whole number is a perfect square

Mathematics
1 answer:
kirill [66]3 years ago
4 0

Answer:

you simply think of a number that when multiplied by itself it will give you that whole number

Step-by-step explanation:

let's take for instance the number 4 it's a whole number and still a perfect square because when you think of a number from 1to 10, which number when you multiply by itself will give you four apart from 2

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The regular price of a watch is $32.25. During a sale, the watch was marked 16% off. What was the price of the watch during the
Serga [27]

Answer:

$ 27.09

Step-by-step explanation:

Given,

The regular price of the watch = $ 32.25,

The marked off percentage or discount percentage, in the sale = 16%,

So, the amount of marked off = 16% of regular price

= 16% of 32.25

= 0.16 × 32.25

= $ 5.16

Hence, the the price of the watch during the sale = Regular price - marked off

= $ 32.25 - $ 5.16

= $ 27.09

Last option is correct.

6 0
3 years ago
Read 2 more answers
A sea horse riding travels an average of 0.01 miles per hour. At that rate , how fast can a sea horse travel in 2.4 hours?
kondaur [170]
As for this problem, it would be best to approach this with a ratio to ratio approach. This would then involve the equation with fractions which is the common conversion from ratios to easily solve the problems concerning these. The equation then would look somehow like this:

0.01 miles / 1 hour = x miles / 2.4 hours

The easiest way would be just to multiply the numerator, which is the miles, to 2.4. So when it is multiplied to the numerator, the equation then would turn to:

0.01 miles x 2.4 / 1 hour = x miles / 2.4 hours

0.024 miles would be the answer.
5 0
3 years ago
Read 2 more answers
Samuel earned $18.90 working last weekend. He worked for 24 hours. Which equation and
Ket [755]

Answer:

Is there any options? or do we need to make one?

6 0
3 years ago
What is the right-hand limit of as x approaches f(x) = x/x-5 as x approaches 5?
Ber [7]

Answer:

+\infty

Step-by-step explanation:

The expression for the right hand limit of f(x) is:

f = \frac{x+\epsilon}{x + \epsilon - 5}

The expression can be simplified with some algebraic handling:

f = \frac{1}{\frac{x+\epsilon-5}{x+\epsilon} }

f = \frac{1}{1-\frac{5}{x+\epsilon} }

Let be x = 5, as \epsilon is approaching zero, f is positive and becomes bigger, diverging to +\infty.

7 0
3 years ago
suppose the nightly rate for a three star hotel in paris is thought to be bell-shaped and symmetrical with a mean of 160 euros a
Westkost [7]

Answer:

95.44%

Step-by-step explanation:

Mean rate (μ) = 160 euros

Standard deviation (σ) = 8 euros

For any given rate, X, the z-score is:

z=\frac{X-\mu}{\sigma}

For X = 144 euros:

z=\frac{144-160}{8}\\ z=-2

For X= 176 euros

z=\frac{176-160}{8}\\ z=2

In a standard distribution, a z-score of -2 corresponds to the 2.28th percentile, while a z-score of 2 corresponds to the 97.72th percentile.

Therefore, the percentage of hotels with rates between 144 and 176 euros is:

P=97.72-2.28\\P=95.44\%

8 0
3 years ago
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