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Amiraneli [1.4K]

3 years ago

9

Q)on a book case there are 35 science books ,28 history books,10 cook books,and 10 mystery novel .how many books are on the book

case?

2 answers:

bazaltina [42]3 years ago

8 0

Answer: 83

Step-by-step explanation:

Just add em

Finger [1]3 years ago

7 0

Answer:

83

Step-by-step explanation:

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Korolek [52]

Answer:

65

Step-by-step explanation:

3 0

3 years ago

21 ÷ 30 equals what?

sweet [91]

The answer should be .7

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3 years ago

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For each of the functions below, indicate whether the function is onto, one-to-one, neither orboth. If the function is not onto

Karo-lina-s [1.5K]

Answer:

$f_{1} :Z \rightarrow Z$ is one to one mapping, it is not onto mapping

Step-by-step explanation:

$f_{1} :Z \rightarrow Z\\ f_{1} (x) = x^{3}$

f₁(x) is one to one mapping

Let $x, y \epsilon Z$

f₁(x) = f₁(y):

x₁³ = y₁³

f₁(x) is not onto mapping

Example: If f₁(x) = 7,

x₁³ = 7

$x_{1} = \sqrt[3]{7}$

x₁ is not an element of Z

$f_{1} :Z \rightarrow Z$ is one to one mapping, it is not onto mapping

5 0

3 years ago

There are 12 boys and 14 girls in a class. One of the students is selected at random to represent the class at student council.

Tema [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find the fifth term in the sequence that is defined as follows an=n^2+2

Vedmedyk [2.9K]

Answer:

a(5) = 2 + 5^2 = 2 + 25 = 27

Step-by-step explanation:

This sequence is defined as a(n) = 2 + n^2.

Thus, a(1) = 2 + 1^2 = 2 + 1 = 3

Then a(5) = 2 + 5^2 = 2 + 25 = 27

8 0

3 years ago