Which figure must be a rhombus?

A. a quadrilateral with four right angles

B. a parallelogram with four congruent sides

C. a quadrilateral with congruent diagonals

D. a parallelogram with four congruent angles

I am having a bit of trouble with this write an expression, with fewer terms, that is equivalent to 9x+6-4x+9

Your brother is 1/3 your age your sister is 6 years older then your brother your sister is 10 years old write and solve an equation to find your age a

What is the answer to 0.5 rounded to the nearest one?

Multiply the polynomials * -6w (2w2 - 5)

Since the start of the school year, 16 students have moved away. There are now less than 457 students in the school. Write and solve an inequality to represent the amount of students at the beginning of the year

1. f (x) = (x 81+2 What is the domain?

When rounding a number, what should you do with the digits to the right of the place to which you are rounding

Trevor earns $7.80 an our take-home pay and works 20 hours each week to buy a new laptop computer to take to college that cost $780 how many weeks will it take for church to achieve his goal

What is each sum or difference? (7-2i) + (-3+i) (1+5i) - (3-2i) (8+6i) - (8-6i) (-3+9i) + (3+9i)

Si: P (x) = 3x; R (x) = 2x; calcula : P (R (0))