In how many different ways can 5 books be arranged on a shelf?

Answers

Answer 1
Answer: Permutation:

5! = 5 * 4 * 3 * 2 * 1 = 120

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If a movie started at 4:45 and ended at 6:20 how long was the movie?
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- 4a = 36 find the value of a​

The right triangle shown has angles x, y, and z and side lengths a, b, andc. which equation is not true for this triangle?

Answers

(You forgot to provide the choices!?!)

A.) Cos Z = b/c

B.) Sin X= c/b

C.) Tan X = b/a

D.) Tan Z = a/b


B is the answer, Sin X = c/b is wong because Sin X= b/c ( sin = opposite/ hypotenuse)

Hope this helps.!

Answer:

Sin X = c/b

Step-by-step explanation:

Solve for x in this equation log9 1/3=x

Answers

The work is shown in the attachment 

A balloon has a circumference of 28 in. Use the circumference to approximate the volume of the balloon to the nearest square inch.Answer choices:
3,659 in ^3
11,488 in ^3
2,964 in ^3
944 in ^3

Answers

the correct question is
a) A balloon has a circumference of 28 in. Use the circumference to approximate the volume of the balloon to the nearest cubic inch.

or

b) A balloon has a circumference of 28 in. Use the circumference to approximate the surface area of the balloon to the nearest square inch.

case a)
we know that
circumference=2*pi*r
clear variable r
r=circumference/(2*pi)
circumference=28 in
r=28/(2*pi)----> r=4.46 in

volume of a balloon=(4/3)*pi*r³-----> (4/3)*pi*4.46³----> 371.61 in³
Volume=372 in³

the answer is
372 in³


case b)
we know that
circumference=2*pi*r
clear variable r
r=circumference/(2*pi)
circumference=28 in
r=28/(2*pi)----> r=4.46 in

surface area of a balloon=4*pi*r²-----> 4*pi*4.46²---> 249.83 in²
Surface area=249.83 in²-------> 250 in²

the answer is
250 in²

What is 5,389.029 rounded to the nearest hundreth

Answers


5,389.029

If rounded to nearest hundredth,

5,389.03

This is the answer 5,389.03  HOPE THIS HELPS!!!!!!

it is 5389.030 to nearest hundredth

By using the 20 percent off coupon that she found in the newspaper, Jill saved $4 on the extra large bag of dog food that she bought. what was the cost of the dog food without the coupon?

Answers

The cost of the dog food without the coupon is $20.

What is the percentage?

The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %.

It is given that 4 dollars are 20% of the original price of the dog food. Let's have x be the original price of the dog food.

The cost of the dog food without the coupon is calculated as:-

4=x ( 20 )

To get x alone divide both sides by 20 and solve further.

( 4 / 20 )= ( x ( 20) / 20 )

Solve the above equation by cancelling 20 to get the value of x.

4/20=x

Divide 4 by 20 to get the answer and multiply by the value 100 to get the actual cost of the product.

x = 0.2 x 100 = 20

Therefore, the cost of the dog food without the coupon is $20.

To know more about percentages follow

brainly.com/question/24304697

#SPJ5

well if 20% x 5 is 100%
then $4 x 5 = $20
So without the coupon the dog food costs $20 

love, the Pineapple <3
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In a family with 2 children, excluding multiple births, what is the probability of having a boy and a girl in any order?75%
25%
50%
60%

Answers

50% because it can either girl or boy first. I hope i helped
50% because 100% divided by 2 children would be 50% per child.