2 years ago

Giải hộ toi bài tập nó khá khó

Mathematics

1 answer:

deff fn [24]2 years ago

5 0

Answer:

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Suppose we want to choose 6 letters, without replacement, from 15 distinct letters. (A) how many ways can this be done, if the o

Olenka [21]

Answer:

Below in bold.

Step-by-step explanation:

A.This is the number of combinations of 6 from 15

= 15C6

= 15! / (15-6)! 6!

= 5,005 ways.

B. This is the number of permutaions of 6 from 15:

= 15! / (15-6)!

= 3,603,600 ways.

7 0

3 years ago

A number q plus 8 is less than or equal to 15

Zepler [3.9K]

Answer:

q≤7

Step-by-step explanation:

q+8≤15

1) Subtract 8 from both sides:

q≤7

4 0

3 years ago

Read 2 more answers

Find the range for the measure of the third side of a triangle given that the measures of two sides are 13 and 27.

IgorLugansk [536]

Answer:

Explanation:

[ Leg A ] 13

[ Leg B ] 27

[ Leg C ] x

Since We Are Missing The Third Side Of The Triangle.

x Has To Be Greater Than 0 But Less Than 40

6 0

3 years ago

8/5 ( 2x + 13 ) - 3 = 22

Alona [7]

Answer:

$x = \frac{21}{16}$ = 1 5/16

[/tex] 1 \frac{5}{16}[/tex]

Step-by-step explanation:

$\frac{8}{5} (2x + 13) - 3 = 22$

Expand

$\frac{16}{5} x + \frac{104}{5} - 3 = 22 \\ \frac{16}{5} x + \frac{89}{5} = 2$

Collect like terms and simplify

$\frac{16}{5} x = 22 - \frac{89}{5} \\ \frac{16}{5} x = \frac{21}{5}$

Cross Multiply

$80x = 105$

Divide both sides of the equation by 80

$\frac{80x}{80} = \frac{105}{80} \\ x = \frac{21}{16}$

5 0

3 years ago

Pls help mw with this

zysi [14]

A I think I’m not really sure

7 0

3 years ago