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lord [1]
3 years ago
8

There are 42 books in Mr. Long’s class library. Some books are paperback, some books are hard cover. There are 18 paperback book

s in her class library. What is the ratio of paperback books to hardcover books in Mr. Long’s library?
a)3:7. b)3:4. c)4:7. d)4:3
Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

3:7

Step-by-step explanation:

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Solve the equation for x. x ^3 = 27 The solution of the equation is x
PSYCHO15rus [73]
The answer is 3
3x3x3 is 27

Hope this helps
5 0
3 years ago
Shelley read 40 business proposals between 6 am and 11 am. On average how many proposals did she read per hour
UkoKoshka [18]

Answer: 8 proposals per hour

Step-by-step explanation: 40/5 = 8

6 0
2 years ago
Which of the following is a monomial? O A. 11x-9 OB. 20x9 OC. 20x⁹ - 7x O D.9/x<br>​
Drupady [299]

Answer:

B. 20x⁹

Step-by-step explanation:

A monomial is a polynomial with just one term.

Example: 3x²

A. 11x - 9

INCORRECT, this has two terms 11x and 9

B. 20x⁹

CORRECT, this only has one term!

C. 20x⁹ - 7x

INCORRECT, this has two terms 20x⁹ and 7x

D.9/x

INCORRECT, this is not a polynomial

Learn more about Polynomial here: brainly.com/question/12099138

7 0
2 years ago
Which is an example of a function?
aksik [14]
The last one, since one depends on the other

8 0
3 years ago
Read 2 more answers
PLEASE PLEASE HELP ​
nekit [7.7K]

Answer:68.3 degrees

Step-by-step explanation:

The diagram of the triangle ABC is shown in the attached photo. We would determine the length of side AB. It is equal to a. We would apply the cosine rule which is expressed as follows

c^2 = a^2 + b^2 - 2abCos C

Looking at the triangle,

b = 75 miles

a = 80 miles.

Angle ACB = 180 - 42 = 138 degrees. Therefore

c^2 = 80^2 + 75^2 - 2 × 80 × 75Cos 138

c^2 = 6400 + 5625 - 12000Cos 138

c^2 = 6400 + 5625 - 12000 × -0.7431

c^2 = 12025 + 8917.2

c = √20942.2 = 144.7

To determine A, we will apply sine rule

a/SinA = b/SinB = c/SinC. Therefore,

80/SinA = 144.7/Sin 138

80Sin 138 = 144.7 SinA

SinA = 53.528/144.7 = 0.3699

A = 21.7 degrees

Therefore, theta = 90 - 21.7

= 68.3 degees

8 0
3 years ago
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