Perform the necessary operations.20 - (-18) + 21 + (-19)

A. -42
B. 42
C. 40
D. 2


Answer: C

Mathematics

You might also like to view...

Find the absolute value of the complex number.z = 4

A. 4 B. 4i C. 16 D. 2

Mathematics

Write the symbolic representation for f(x, y) given that f computes the indicated inequality.The sum of x and three times y

A. f(x, y) = 3xy B. f(x, y) = 3x + y C. f(x, y) = 3(x + y) D. f(x, y) = x + 3y

Mathematics

Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation. =  + 

A. Identity, {x-1}
B. Conditional, {3}
C. Inconsistent, ?
D. Conditional, 

Mathematics

Identify the parent function and the transformation shown in the graph. Write an equation for the function shown in the graph. ? ?

A. Horizontal shift of 
B. Vertical shift of 
C. Vertical shift of  
D. Horizontal shift of 
E. Vertical shift of 

Mathematics