MATHEMATICS HIGH SCHOOL

Calculate 5!.A.
5

B.
120

C.
51

D.
60

Answers

Answer 1
Answer: 5x4x3x2x1 = 20 x 3 60x2 120x1 = 120 Answer is B 120
Answer 2
Answer: The answer is:
B. 120
5! Means 5 factorials >> 5 x 4 x 3 x 2 x 1 It's simply just the product of a series of descending natural numbers (no negative numbers or fractions) which are indicated by an exclamation point.
The answer is B. because 5x4= 20, 20x3 (next number to multiply in the series) =60, 60x2= 120, 120x1= 120. 
I hope that helped (:

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What do you add to get 24 and multiply to get 144

This one to its alot

Answers

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A chemist has 20 gallons of solution with 12% saline. How much pure saline (100% saline) needs to be added to the 20 gallons to create a mixture with 15% saline content? Round your answer to the nearest tenth (if you answer this please let me know how you got the answer, thank you!)

Answers

Answer:

0.6 gallons of pure saline

Step-by-step explanation:

15-12=3

3=×0.03

20 gallons ×0.03=0.6 gallons

What is the LCD of 8 5/12 and 3 5/8?

Answers

The lowest common denominator of those two numbers is 12.

8 5/12 = 8 10/24
3 5/8 = 3 15/24

Answer:

12

Step-by-step explanation:

1) How many ways can six books be arranged on one shelf? a) 21 b) 120 c) 360 d) 720 2) There are eight girls competing in an ice-skating competition. In how many ways can they finish in first, second, and third place? a) 336 b) 1,680 c) 2,016 d) 40,320 3)How many ways can a president and vice president be selected from a class of 12? a) 23 b) 72 c) 132. d) 1,320 4)How many ways can seven students line up for a class picture? a) 5,040 b) 210 c) 28 d) 7

Answers

1 )  6 · 5 · 4 · 3 · 2 · 1 = 720
Answer: D ) 720
2 )  8 · 7 · 6 = 336
Answer: A ) 336
3 ) 12 · 11 = 132
Answer: C ) 132
4 ) 7 · 6 · 5 · 4 · 3 · 2 · 1 = 5,040
Answer: A ) 5,040

Answer:  The correct options are

(d) 720.

(a) 336.

(c) 132.

(a) 5040.

Step-by-step explanation:  The calculations are as follows:

(1) The number of ways in which six books be arranged on one shelf is given by

6!=6*5*4*3*2*1=720.

So, the total number of ways is 720.

Option (d) is CORRECT.

(2) Given that there are 8 girls competing in an ice-skating competition.

So, the number of ways in which they can  finish in first, second, and third place is given by

8* 7* 6=336.

Thus, the total number of ways is 336.

Option (a) is CORRECT.

(3) The number of ways in which a president and vice president can be selected from a class of 12 is given by

12*11=132.

Thus, the total number of ways is 132.

Option (c) is CORRECT.

(4) The number of ways in which 7 students can line up for a class picture is given by

7!=7*6*5*4*3*2*1=5040.

Thus, the required number of ways is 5040.

Option (a) is CORRECT.

A circle has a radius of 5 meters. What is the length of an arc of that circle that is captured by a central angle that measures 120°. Round your answer to the nearest hundredth.

Answers

Here you go... The answer is 10/3π because Circumference=π x diameter = π x 2 x radius...

Help please! absolute value equations! ​

Answers

Answer:

n = -1                       n = -7

Step-by-step explanation:

5| 2n+8| +3 = 33

Subtract 3 from each side

5| 2n+8| +3-3 = 33-3

5| 2n+8| = 30

Divide by 5

5/5| 2n+8| = 30/5

| 2n+8| = 6

An absolute value equation has two solutions, one positive and one negative

2n+8 = 6              2n+8 = -6

Subtract 8 from each side

2n+8-8=6-8          2n+8-8 = -6-8

2n = -2                    2n = -14

Divide by 2

2n/2 = -2/2            2n/2 = -14/2

n = -1                       n = -7
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