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kiruha [24]
3 years ago
12

How many positive integers from 1-100 inclusive have an even number of positive divisors

Mathematics
1 answer:
yuradex [85]3 years ago
8 0
My test say the answer is A
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Six yards of rope costs $5.50 while four yards costs $4.75
Amiraneli [1.4K]

The best option is the first one (Six yards of rope costs $5.50). It is the lowest unit cost.

<u>Step-by-step explanation:</u>

For the given question case, first we should compare the unit costs of the choices provided and evaluate the best option.

Choice 1:

Six yards of rope costs $ 5.50

            \frac{5.50 \text { dollar}}{6 \text { yard }}=0.9167\ dollar/yard

Choice 2:

Four yards costs $ 4.75

           \frac{4.75 \text { dollar}}{4 \text { yard }}=1.1875\ dollar/yard

Thus, the best choice is the first one. Because it is the lowest unit cost.

3 0
3 years ago
160,000,000 in scientific notation and 58,413,000,000 please help me guys!!!
elixir [45]

160000000 =

move the decimal so only one number is to the left

we need to move it 8 times

1.60000000 *10^8

1.6*10^8

58413000000

move the decimal so only one number is to the left

5.8413000000 * 10^10

5.8413*10^10

3 0
3 years ago
The time to complete a standardized exam in the BYU-Idaho Testing Center is approximately normal with a mean of 70 minutes and a
leva [86]

Answer:

Step-by-step explanation:

Given that X the time to complete a standardized exam  in the BYU-Idaho Testing Center is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.

We have 68 rule as 2/3 of total would lie within 1 std deviation, and 95 rule as nearly 95% lie within 2 std deviations from the mean.

We have std deviation = 10

Hence 2 std deviations from the mean

= Mean ±2 std deviations

=70±20

= (50,90)

Below 50, 0.25 or 2.5% would complete the exam.

3 0
3 years ago
NEED HELP WITH A MATH QUESTION
gogolik [260]

Answer:

(-3,-4)

Step-by-step explanation:

You draw it...

         So since we are reflecting across the x-axis, we want the x-coordinate to stay the same.  We just need to take the opposite of y.

Ans. (-3,-4)

4 0
3 years ago
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WILL GIVE BRAINLIEST
Katena32 [7]
Translation, rotation, and reflection are always congruent. Dilation's are similar to each other....
8 0
3 years ago
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