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andrew11 [14]
3 years ago
15

Abby is adopting kittens from the pet store. if there are 18 kittens, how many ways can she choose 2 kittens? **the answer isnt

9 or 32**​
Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

153 ways.

Step-by-step explanation:

The answer is the number of combinations of 2 from 18

= 18! / 2! (18-2)!

= 18! / 2! 16!

= 18*17*16! / 2! 16!

= 18 * 17 / 2*1

= 9 * 17

= 153 ways.

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Estimate 58% of 112 using benchmark percents. Explain your answer.
vitfil [10]

Answer:

64.96

Step-by-step explanation:

The most common benchmark percents are 0\% , 10\% , 25\% , 50\% , 75\% and 100\%

We are given 58\% which is closest to 50\%.

Now we calculate 50\% \ of \ 112 which is equal to 56.

We are left with 8\% more to add.

We can say 1\% \ of \ 112 \ is\ 1.12

Therefore 8\% \ of \ 112 \ would \ be \ 1.12\times8=8.96

Now add the two.

56+8.96= 64.96

Thus 64.96 is the answer.

3 0
3 years ago
What is the ratio of CDs & DVDs
Karo-lina-s [1.5K]
A. 2:1
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5 0
3 years ago
HELPPPPP ME OUUTTTTTTT!!!!
klemol [59]

Answer:

20 degrees

Step-by-step explanation:

we can consider 33 to be the radius of a circle.

31 would then be the cos of the angle in that circle.

the regular cos function is defined for the standard circle with radius 1. so, that would be multiplied by 33 for this circle here.

31 = cos(?) × 33

cos(?) = 31/33 = 0.9393...

? = 20.05 ≈ 20 degrees

5 0
3 years ago
a. Show that the system of rational expressions is closed under addition, or give an example showing the contrary.
otez555 [7]
A "rational expression" is a fraction in which the numerator and the denominator are both polynomials. The sum of two such expressions will always produce another such expression, viz., 
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<span>The numerator and denominator of the sum will both be polynomials when fully expanded</span>
7 0
3 years ago
2/5, -2/5, 5/6, -5/6. Which list of numbers is ordered from least to greatest
g100num [7]

Answer:

-5/6, -2/5, 2/5, 5/6

Step-by-step explanation:

put the fractions in your calculator and then click the fraction to decimal button and press enter.

6 0
3 years ago
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