Trigonometry
sinx=-½
What is the value of x?
The correct answer is...
x=210°
x=330°
If a sequence is 7,10,13,16...
What is the 25th term?
The correct answer is...
79
If y=3x, what would the value of y be if x=4?
The correct answer is...
81
How can you determine if a relation is a function?
You can use the vertical line test, and if the vertical line intersects the graph at only one point, it is a function. It is a function if every x value has only one y value.
sinθ=3/5
What is the value of cosθ?
cosθ=⅘
cosθ=-⅘
In a geometric sequence, the 10th term is 4, 12th term is 9. What is the 11th term?
The correct answer is...
6
What is the value of 163/4?
The correct answer is...
8
What is the vertex of the parabola...
y=-⅓x2+½x+¼
(¾,⁷⁄₁₆)
What is the value of sin(-135°)?
The correct answer is...
-1 / √2
2+5+8+11..........101
What is the total value?
The correct answer is...
1751
What is the value of [36⁄25]-3/2?
The correct answer is...
125/216
Write an equation of a parabola...
With vertex (-1,-4) and y intercept -1
The correct answer is...
y=3(x+1)2-4
Arnie is sitting at the edge of a lake, flying a kite. The length of the string to the kite is 85 m. He estimates the angle of elevation to the kite is 30deg. What is the the height of the kite above the water?
The correct answer is...42.5m
In Pascal's triangle, in a certain row the second number is 7. What is the fourth number in that row?
The correct answer is...
35
The value of a new car is $20,000. Every year it decreases by 10%. What will the value be after 5 years?
The correct answer is...
$11,810
A pistol bullet is fired vertically and the height in metres after t seconds is given by the equation h=100t-5t2. What is the maximum height the bullet will reach and after how many seconds will it reach that height?
The correct answer is...
max height= 500m
It will reach the maximum height in 10 seconds.
What is the exact value of cos75°?
√3−1 / 2√2
In the sequence 1+½+¼+⅛...
What is the total of infinite numbers?
The correct answer is...
2
In an exponential graph, which transformation will change the asymptotes?
The correct answer is...
It will change for a vertical translation
A fence must surround a rectangular garden and separate it into two fields with a fence running parallel to one side. Find the garden measurements that will provide you with the most space if 1200 metres of the fence are available.
The correct answer is...
The length is 300m and the width is 200m