07/26/21

Trigonometric Identities
If cosθ=–1⁄2 and θ is in the second quadrant, find cos 2θ.
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07/26/21

Two consecutive odd integers that have a product of 15
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07/26/21

David is exploring the sequence of numbers given by the rule 2n^2 - 3n + 1
David is exploring the sequence of numbers given by the rule 2n^2 - 3n + 1. Prove that the difference between any two consecutive terms from the sequence 2n^2 - 3n + 1 must be an odd number.
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07/26/21

What is the probability of tossing a coin 5 times and each time getting heads
What is the probability of tossing a coin 5 times and each time getting heads
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07/26/21

What is the probability of drawing a black face card in a standard deck of 52 playing cards?

what is the probability of drawing a black face card in a standard deck of 52 playing cards? 
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07/26/21

A ten sided die is numbered from one to ten. What is the probability of rolling a four on 3 consecutive rolls
A ten sided die is numbered from one to ten. What is the probability of rolling a four on 3 consecutive rolls
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07/26/21

The letters that make the name BRIANNA are put on cards and placed in a box. State the probability of each event below if one letter is selected at random from the word BRIANNA
an “N”  a vowel  an “R” 
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07/26/21

Please help me understand how to Write the equation for each sine function
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07/26/21

(4 points) What is the maximum and minimum values of the sine and cosine function? Only consider angles in [0,2𝜋)
Also what angles do they occur at? I can figure out the minimums and maximums but I am not sure how to find which angles they are at.
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07/26/21

The reference angle of 4 is how many radians?
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07/26/21

Find the reference angle for each of the following.
3.2 radians = _ radians 5.42radians =_ radians-1.7 radians=_  radianssqrt2 radians=_  radians
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07/26/21

(3 points) Suppose 𝜃 and 𝜙 are in the first quadrant and cos(𝜃)=5/11 and tan(𝜙)=13/1. Find cos(𝜃+2𝜋)= , cos(𝜃−2𝜋)=, cos(𝜋−𝜃)=, tan(𝜃+2𝜋)=, tan(𝜃−𝜋)= , tan(𝜋−𝜃)
I understand how to do the less complicated versions of these but not sure how to do this version.
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07/26/21

Suppose 𝑓(𝑥) is a function whose graph is a sinusoid with the following features 1. Amplitude = −5 2. Period = 𝜋5 3. Phase shift = 𝜋−40 4. Midline 𝑦=5.

Find an equation for the graph of f(x). I can not figure this one out even after asking my teacher, and I have about five more of these I need to learn how to do step by step.
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07/26/21

For each of the following, indicate whether this is a periodic function or not
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07/25/21

Find an explicit formula for f(n).
f(1)=−71f(n)=f(n−1)⋅4.2​
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07/25/21

A ball is thrown from an initial height of 5 feet with an initial upward velocity of 36 ft/s
A ball is thrown from an initial height of 5 feet with an initial upward velocity of 36 ft/s. The ball's height h (in feet) after t seconds is given by the following. h= 5+36t-16^2.Find all values... more
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07/25/21

Consider the triangle ABC. Suppose that a=73 b=71 c=3 Solve the triangle. Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth.
I NEED HELP WITH THIS ASAP PLEASE!!!The triangle is ABCc between ABa between BCb between AC
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07/25/21

a total of $46,000 is invested into 2 municipal bonds that pay 5.75% and 7.75% simple interest. the investor wants an annual income of $3225 from the investments
a total of $46,000 is invested into 2 municipal bonds that pay 5.75% and 7.75% simple interest. the investor wants an annual income of $3225 from the investments. what amount should be invested in... more
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07/25/21

2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item
2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item
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07/24/21

Evaluate [i18+(1i)25]^2
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07/24/21

The nth term of an arithmetic sequence is given. an = 6 + 3(n − 1)
The nth term of an arithmetic sequence is given.an = 6 + 3(n − 1)(a) Find the first five terms of the sequence. a1 =  a2 =  a3 =  a4 =  a5 =  (b) What is the common... more
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07/24/21

The sequence an = a + (n − 1)d
The sequence an = a + (n − 1)d is an arithmetic sequence in which a is the first term and d is the  ---Select--- common sum partial difference partial sum common difference . So for the arithmetic... more
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07/24/21

Let α and β be two acute angles of a right triangle in a unit circle. (Thus α and β are complementary angles.)
 Under what conditions will sin⁡(α)=cos⁡(α)
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07/24/21

Rational function equation help
A function of the form y=a/bx+c has a y-intercept of -2/5, a vertical asymptote of x=2.5determine the equation of this function.
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07/24/21

math question based on related rates
A ladder 26 ft long rests on the (horizontal) ground and leans against a (vertical) wall. The base of the ladder is pulled away from the wall at a rate of 4 ft/sec. How fast is the top of the... more
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