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yarga [219]
2 years ago
14

Which expression uses the commutative property to make it easier to evaluate 1/6 • 5/7 • 18?

Mathematics
1 answer:
Korvikt [17]2 years ago
8 0
It’s A, Because if you do KCF (Keep Change Flip) It would be 1/6 X 7/5.
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What is the mean, median and mode for...45,50,55,55,55,60,60,60,65,65,70?
Alexxx [7]

Answer:

Mean = 58.18

Median = 60

Modes = 55 and 60

Step-by-step explanation:

To find the mean/average, add up all the numbers and divide the sum by the # of numbers there are (ex. there are 11 numbers so divide the sum by 11).

The median is the middle number of a set.  In this case, the middle number is easy to see because the # of numbers is odd, but if it was even, just find the average of the two middle numbers.

The mode is/are the most frequent number(s) in the set.  In this set, the numbers that appear the most are 55 and 60.

8 0
3 years ago
Which of the following represents a geometric sequence?
Leto [7]
The answer is A

1/4, 1/4, 1/4, 1,4...
6 0
3 years ago
27x+3=6 what does x equal
Digiron [165]

Answer:

1/9

Step-by-step explanation:

27x+3 = 6

-3 -3

27x = 3

/27 /27

× = 3/27 = 1/9

8 0
3 years ago
Read 2 more answers
What is the center of the hyperbola whose equation is (y+3)^2/81-(x-6)^2/89=1?
xxMikexx [17]

We have been given an equation of hyperbola \frac{(y+3)^2}{81}-\frac{(x-6)^2}{89}=1. We are asked to find the center of hyperbola.  

We know that standard equation of a vertical hyperbola is in form \frac{(y-k)^2}{b^2}-\frac{(x-h)^2}{a^2}=1, where point (h,k) represents center of hyperbola.

Upon comparing our given equation with standard vertical hyperbola, we can see that the value of h is 6.

To find the value of k, we need to rewrite our equation as:

\frac{(y-(-3))^2}{81}-\frac{(x-6)^2}{89}=1

Now we can see that value of k is -3. Therefore, the vertex of given hyperbola will be at point (6,-3) and option D is the correct choice.

6 0
3 years ago
On Friday, Carlotta had 6/8 of her paper left to write. She wrote 2/6 of the paper on Saturday and 1/4 of the paper on Sunday. A
BaLLatris [955]

Answer: C 1/6

Step-by-step explanation:

5 0
3 years ago
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