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HACTEHA [7]
3 years ago
10

The sum of two numbers is 10. The difference between the two numbers is 4. What is the smaller number? OA – 1 OB. 3 OC. 7 OD. 9

OE. 11 ​
Mathematics
1 answer:
11111nata11111 [884]3 years ago
7 0

Answer:

3

Step-by-step explanation:

if you do the math 5+5 is 10 and 3.5 is half of 5 so the answer if you round is 3

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How can you determine if you need to use a combination or permutation to count the number of outcomes? Which will usually have m
Nadya [2.5K]

Answer with Step-by-step explanation:

Permutation : It is an arrangement of r elements out of n elements.

Combination : it is a selection of r element out of n elements .

Suppose we have a set

S={1,2,3}

If two elements are taken at a time then

Using permutation formula

Total number of outcomes=3P_2

Total number of outcomes=\frac{3!}{(3-2)!}

Total number of outcomes=3!=3\times 2\times1=6

Using combination formula

\binom{n}{r}=\frac{n!}{r!(n-r)!}

Total number of outcomes=\binom{3}{2}=\frac{3!}{2!1!}

Total number of outcomes=\frac{3\times2!}{2!}

Hence, total number of outcomes=3

Total number of outcomes determined by permutation have more outcomes.

Because permutation is an arrangement of elements  therefore, it consider order of arrangement of element   but combination is a selection of elements it does no consider order of elements

Arrangements of two elements out of 3 elements

{1,2},{2,3},{2,1},{3,2},{1,3},{3,1}

By using combination if two elements taken at a time then combination

{1,2},{2,3},{1,3}

4 0
3 years ago
Which of the following best defines 2 2/3?
inna [77]

Answer:

A. \sqrt[3]{4} = Cube root of 4.

Step-by-step explanation:

We have been given an expression 2^{\frac{2}{3}}. We are asked to find the equivalent expression for our given expression.

Using exponent property \sqrt[n]{a^m} =a^{\frac{m}{n}, we will get,

2^{\frac{2}{3}}=\sqrt[3]{2^2}

2^{\frac{2}{3}}=\sqrt[3]{4}

Upon looking at our given choices, we can see that option A is the correct choice.

3 0
3 years ago
Read 2 more answers
Anyone free to help??
Vera_Pavlovna [14]

Answer:

(1,-2)

Step-by-step explanation:

w = ( x , y ) = ( 1 , -2 )

3rd choice

7 0
3 years ago
1. The ratio of the number of boys to the number of girls on the swim team
Papessa [141]

Answer:

8

Step-by-step explanation:

Sum the parts of the ratio 4 + 2 = 6 parts

Divide 24 by 6 to find the value of one part of the ratio

24 ÷ 6 = 4 ← value of 1 part, thus

number of boys = 4 × 4 = 16

number of girls = 2 × 4 = 8

Hence there are 8 more boys than girls

5 0
3 years ago
PLZ HELP ASAP WILL MARK YOU BRAINLYEST
katen-ka-za [31]

Answer:

1.) : You should buy the second one (16cm x 45cm)

2.) : Between the smallest and the biggest vases, the cone face holds 396 more water than the smallest one.

Step-by-step explanation:

10 x 40 = 400

16 x 45 = 720

18 x 18 = 324

———————

720 - 324 = 396

6 0
2 years ago
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