Mixed bag
Simplify: 6a2 * 7a9
What is 42a11
In right triangle ABC: angle B is 40° and angle A is the right angle. What is the measure of angle C?
What is 50°?
Solve for x:
3x - 6 = 18
What is x = 8?
Identify the slope and the y-intercept in the following equation: y = -3x - 6
What is m = -3, b = -6 ?
How do you write the solution for a system of equations?
What is "as an ordered pair" ?
A scatterplot where the points are decreasing from left to right indicate....
(a) positive correlation (b) negative correlation
What is (b) negative correlation
If a 6 foot tree casts a 18 foot shadow, then a 10 foot tree would cast a shadow of what length?
What is 30 ft?
Solve for a:
-3(a + 6) = 0
What is a = -6?
What is the slope of a line that passes through
(2,6) and (-2,3)?
What is 3/4?
Solve the following system of equations:
y = 2x + 3
3x + 2y = 13
What is (1,5) ?
Write 3 billion in scientific notation
What is 3 x 109?
What happens to the angles when you dilate a figure to create a similar figure?
Nothing, they stay the same. In similar figures the corresponding side lengths are proportional; the angle measures don't change.
Solve for x:
20 = -4(x - 6)
What is x = 1?
Graph the following line: y = -2/3x - 4
First graph y-intercept of -4, then use slope to go down 2, over three to the right, connect points to form a line.
Find the hypotenuse of a right triangle with leg lengths of 6 cm and 8 cm.
What is 10 cm?
Is pi rational or irrational?
What is irrational?
Irrational is non-terminating, non-repeating. Rational can be written as a fraction.
If you have a triangle in the 2nd quadrant of a coordinate graph and you reflect it over the x axis, what quadrant will the reflected shape be in?
What is 3rd quadrant?
Solve for x:
-4(x + 3) + 6(x - 2) = 14
What is x = 19?
Mr. Farley hires Sears to fix his lawnmower. The equation below shows the cost of the visit where x is the hours spent, y=25x +50.
The 25 in the equation represents which of the following?
(a) the hours spent fixing the lawnmower
(b) the initial cost of coming out to the house
(c) The cost per hour
(d) none of the above
What is (c) the cost per hour ?
It's a nice day so Mrs. Lincoln is taking the baby out for a walk. She starts at her house and walks 2 miles north and then 3 miles east, how far away from home is she?
What is 3.6 miles?
Draw a mapping diagram for the following data and tell whether the relation is a function.
(5,3), (3,0), (4,1), (5,2)
What is "not a function"?
Rotate the figure with the following coordinates 90° clockwise about the origin. What are the resulting coordinates?
(1,1), (3,2), (3,4)
What is (1,-1), (2,-3), (4,-3)
Solve for x:
4(x - 7) + (-5) = 2x - 3
What is x = 15?
Eric has a snack that consists of cookies and milk. The milk contains 120 calories and the cookies contain 30 calories each.
Write an equation that shows the total number of calories when you have x cookies and one glass of milk.
Evaluate this expression for 6 cookies.
What is y = 30x + 120. for six cookies, y = 300 calories
Which of the following equations has infinitely many solutions?
a) 2x + 3 = 5 + 2x
b) 2x + 3 = 5 + 3x
c) 3x - 5 = -5 + 2x
d) 3x - 5 = -5 + 3x
What is d) 3x - 5 = -5 + 3x. They are the same equation.