No Brainers
Where do we find the formula for the circumference of a circle?
The Formula/Reference Sheet
What is the formula for the circumference of a circle?
C=pi*d
When do we flip the inequality symbol when solving an inequality?
When the coefficient of x is negative.
Ex: -2x + 4 > 42
What is the y-intercept?
The point at which the graph crosses the y-axis.
What does B stand for in the formula V=Bh?
AREA of the base.
How do I go from a fraction to a decimal?
Divide numerator by denominator.
N.I.D.O.
What is the formula for pi?
pi = C/d
When do we use an open circle when graphing an inequality?
When the x is greater than or less than. No "or equal to".
Ex: < or >
What does the m and b stand for in y=mx+b?
m= Rate of change/ Rise over run
b= y-intercept
What goes in each quadrant of the t-chart for Volume?
1. Draw your base.
2. Find B (Area of Base)
3. Identify h (Height of Prism or Pyramid)
4. Solve for Volume.
True or False.
You must line up your decimals when multiplying.
False.
You only line up your decimals when adding or subtracting.
pi = c / 13
3 - 2x = 27
x = -12
Isaac started a toy car collection. His grandfather gave him 15 cars to start his collection. He can use his allowance to add 4 cars to his collection every month. Write an equation that can be used to find y, the total cars in his collection after x months?
y=4x+15
A pencil holder shaped like a triangular prism is shown below. The height of the pencil holder is 9 inches, and the area of the base is 24 square inches. Find the volume.
216 cubic inches.
How many degrees do supplementary and complementary angles each add up to?
Complementary: 90 degrees.
Find the circumference of a circle whose radius is 15cm.
C= 94.2cm.
Solve for x and graph on the number line.
4x - 12 > 48
x > 15
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Riya’s family goes to New York to visit family. They take a taxi from the airport and the driver charges $3.50 for the initial fee plus $2.75 per mile. Write an equation that can be used to find y, the total cost of the trip for x miles.
y = 2.75x + 3.50
A shipping container in the shape of a rectangular prism has a volume of 1,250 cubic feet. The area of the base is 62.5 square feet. What is the height of the container in feet?
h=20 ft
How many degrees do the angles of a triangle add up to?
180 degrees.
Find the area of a circle whose diameter is 17 inches.
A= 226.865 in2
Solve for x.
1/2x + 4 = 28
x= 48
When graphing the equation: y= 1/2x + 8, where do you start?
A package of candy in the shape of a triangular pyramid has a height of 8 inches. The area of the base is 27 square inches. How many cubic inches of candy can the package hold?