Math

Question 1

abs

Answer 1

returns absolute value

Question 2

random

Answer 2

return’s random value

Question 3

squrt

Answer 3

returns square root of positive number

Question 4

round

Answer 4

round real number to nearest integrar

Question 5

int abs(int num)

Answer 5

returns the absolute value.

Question 6

double pow(double num, double power)

Answer 6

returns number to the power.

Question 7

double sqrt(double num)

Answer 7

returns square root of positive number

Question 8

What are three things for defining a variable?

Answer 8

1. Type
2. Variable name
3. Value

Question 9

PEMDAS

Answer 9

Parenthesis, Exponents, Multiplication, Division, Addition and Subtraction.

Question 10

+

Answer 10

Addition

Question 11

Subtraction

Answer 11

-

Question 12

*

Answer 12

Multiplication

Question 13

÷

Answer 13

Division

Question 14

%

Answer 14

Modulus(to get the remainder.)

Question 15

1 + 2 × 3 + 7 x 2 % 5

Answer 15

11

Question 16

What is casting?

Answer 16

Casting is converting one date type to another.

Question 17

Which of the following choices is the correct syntax for declaring a real number variable?
a. int grade : 4.0;
b. 4.0 = grade;
c. double grade = 4.0;
d. grade = 4;