For the above right-angled triangle, which of the following is true?

Mathematics

1 answer:

alex41 [277]3 years ago

8 0

I think that the area is rational while the perimenter isn't. A= (2sqrt2)(sqrt2)(1/2)= 2

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Median and mean math questions

Harlamova29_29 [7]

Answer: #7 D) neither set. #6. C) the sum of the data values must be 75. #5. The 6th missing temperature must be 80 degrees

Step-by-step explanation: #7. if you eliminate 3 numbers on each side on set A, then the numbers remaining are 2 and 19. In order to find the median add the two numbers, 19+2 which equals 21. Then divide that number by 2 to find your median, or in other words find the average, 21 divided by 2 is 10.5 which is not 12.5, so that set doesn’t work. In set B eliminate 2 numbers on each side. That will leave you with 10 and 9, then again find the average of the numbers. 10+9=19, and 19 divided by 2= 9.5. So therefore neither of the sets have a median of 12.5

#6. If there are five numbers in the data set and you are finding the average to be 15, then the five values must equal 75. In order to find the average of five numbers you must first add all of your values, and then divide by five, for there are five numbers. If you add all of your numbers up it must total 75, because 75 divided by 5= 15 which is the mean. Any other total would not work.

#5. The median of the original set is 72 degrees. In order to find the missing number you need to do some check and guess. Take the original median and add a number relatively close to the other numbers, for example 75, then add the two numbers together, 72+75=147. Then divide that by two, 147 divided by 2= 73.5 which is not the correct median number, its too low, so experiment with higher numbers and repeat the same process until you find a number that, if added to 72, totaled, and then divided by 2 equals 76.

I really hope this helped :)

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3 years ago

The markup over the dealer's cost on a new refrigerator ranges from 15% to 20%. If the dealer's cost is $1750, over what rage wi

jok3333 [9.3K]

The markup will range from $2012.50 to $2100.

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3 years ago

Suppose Barbara has a 20 minute commute and scores 67.4 on the survey. Is Barbara more 'well-off than the typical individual who

Natalka [10]

Please find full question attached Answer:

Barbara is not more well off as the typical individual has a higher well being score

Explanation:

please find explanation attached

5 0

3 years ago

Round to the nearest ten thousandth.<br>I dont get this

ale4655 [162]

Do you still need help?

4 0

2 years ago

I can't seem to figure out what numbers to use to solve this equation.

Kazeer [188]

Hello!

The first thing you should notice is that the exponent will be less than 1, as raising 27 to any power greater than 1 will make it larger, and you're trying to figure out what makes it equal to 3, a number less than 27.

Raising a number to a fractional power is taking its nth root: $21^{1/3}$ is $\sqrt[3]{21}$ , so you'll really need to take the nth root of 27 to get 3. To figure out which root, write the number in exponential form with a base of 3:

$27^{x}$ = 3
$3^{3x}$ = $3^{1}$

Now, the bases are the same (they are both 3), so you can set the exponents equal to each other:

3x = 1

Divide both sides by 3 and you've isolated x:

$x = \frac{1}{3}$

Answer:
$27^{1/3} = 3$

6 0

3 years ago