Math 7

Question 1:

Let a function of two variables be defined by f(x,y)=2x+4xy. What is the value of f(-3,5)?

Question 2:

The lengths of the sides of a triangle are 3 consecutive even integers. If the perimeter of the triangle is 42, what is the length of the longest side?

Question 3:

Which of the following letters of the alphabet has at least one reflectional symmetry?

Question 4:

When m/r = 7, m² – 49r² =?

Question 5:

What is the x-intercept of the line that contains the points (3,8) and (-3,2) in the standard (x,y) coordinate plane?

Question 6:

The length of arc AB of a circle is equal to 1/6 of the circumference of the circle. The length of the arc is 5π inches. What is the radius, in inches, of the circle?

Question 7:

[non-calculator] What consecutive integers belong in the blanks below?

____________ < √97 < ____________

Question 8:

[non-calculator] The probability that Muhammad will roll a 2 or 4 on a six-sided die is ⅓. The probability that Trey will pick a red chip from a bag is ¼. Which has a higher probability: Muhammad rolling a 2 or 4 three times in a row, or Trey picking a red chip (with replacement) three times in a row?