Solving Inequalities
7y<3.5
y<0.5
What is the equation for circumference?
C=pi*D or pi*2r
Write 1,900,000 in scientific notation.
1.9*106
What is the difference between geometric and arithmetic sequences?
An arithmetic sequence is a sequence with the difference between two consecutive terms constant. The difference is called the common difference. A geometric sequence is a sequence with the ratio between two consecutive terms constant. This ratio is called the common ratio.
What is the diameter when the radius is 4 meters?
8 meters
5a>-75
a>-15
What is the circumference of a circle with a radius of 9 meters?
56.52 meters
Write 0.000704 in scientific notation.
7.04*10-4
List the next three terms in the geometric sequence: 2, 6, 18, 54
162, 486, 1458
What is the diameter of a circle when the circumference is 20 inches?
6.37 inches
65x>585
x>9
What is the circumference of a circle with a diameter of 17 feet?
53.38 feet
Write 5.3*107 in standard form.
53,000,000
List the next three terms in the geometric sequence: 5, 10, 20, 40
80, 160, 320
Why do we flip the inequality symbol when we divide or multiply a negative across an inequality?
It has to do with the way we order the numbers. 20 is greater than 5, but -20 is less than -5. (20 degrees is warmer than 5 degrees but -20 degrees is colder than -5 degrees.) Using the inequality symbol
20 > 5 but -20 < -5In the inequality above, when you multiply "20 > 5" on both sides by -1 (or divide by -1), the inequality changes direction.
-2h>4.6
h<-2.3
What is the circumference of a circle with a radius of 7 kilometers?
43.96 kilometers
Write 1.09*10-4 in standard form.
0.000109
List the next three terms in the geometric sequence: 1, -5, 25, -125
625, -3125, 15625
Circumference divided by Diameter equals?
Pi
0.05x<-0.95
x<-19
What is the circumference of a circle with a diameter of 8.5 meters?
26.69 meters
Write the number 5 in scientific notation.
5.0*100
List the next three terms in the geometric sequence: -2, -4, -8, -16
-32, -64, -128
If the Earth has a diameter of 7.92*103 miles, what is the circumference at the equator?
2.49*104 miles