15,254 Answered Questions for the topic precalculus
Precalculus
05/01/23
rewrite cos(x - 4pie/3) in terms of sin(x) and cos(x)
Precalculus
05/01/23
pre calc question
A savings account pays interest at a annual percentage rate (APR) of 3.4%, compounded monthly.A customer opens a savings account with an initial deposit of $1000. Assuming no further deposits or...
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Precalculus
04/30/23
pre calc question
A savings account pays interest at a annual percentage rate (APR) of 1.7%, compounded quarterly.A customer opens a savings account with an initial deposit of $3000. Assuming no further deposits or...
more
Precalculus
04/30/23
pre calc question
A scientist begins with a sample of 200 grams of a certain radioisotope. After 13 days, the sample has decayed to 163 grams. How long after the beginning of the process will it take to decay to 50...
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Precalculus
04/30/23
trigonometric function
Write the first trigonometric function in terms of the second for 𝜃 in the given quadrant.sec(𝜃), tan(𝜃); 𝜃 in Quadrant IIIsec(𝜃)=
Determining an equation of an apple tree and growth.
Year
Height (ft)
1
7
2
17
3
20
4
24
5
27
6
29
7
32
8
33
9
34
2. Using Desmos, construct a scatter plot with the year on the x-axis (as the independent variable) and the...
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04/29/23
Determine a Log equation in the form Y= A+BlogX for the curve of best fit for the following data.
Modelling Apple Tree Growth
Year
Height of Tree ft)
1
7
2
17
3
20
4
24
5
27
6
29
7
32
8
33
9
34
Determine a logarithmic function (in the form y=a+blogx) for the curve of best...
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Precalculus Trigonometry
04/29/23
Write an equivalent expression for sin^2xcos^2x that does not contain powers of trigonometric functions greater than 1.
Consider the following: ∫ u^−3 (7 − u^3 + u^6) du
Simplify the integrand by distributing u−3 to each term.Answer: ∫ ( ________ ) du
Find the function f given that the slope of the tangent line at any point (x, f(x)) is f '(x) and that the graph of f passes through the given point.
f'(x) = 4(2x-7)3 (4, 3/2)f(x) = ????
TV Viewers: Newsmagazine Shows The number of viewers of a weekly TV newsmagazine show, introduced in the 2009 season, has been increasing at the rate of...
2(3 + 1/2t)-1/3 (1 ≤ t ≤ 6)million viewers/year in its t th year on the air where t = 1 corresponds to 2009. The number of viewers of the program during its first year on the air is given by...
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Precalculus
04/29/23
Give three different polar points that are at the same position as A = (-2, 11𝝅/6)
Give three different polar points that are at the same position as A = (-2, 11𝝅/6)You can use degrees or radians in the angle, but remember to use the degree symbol if you give an angle in...
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Find an equation in standard form for the hyperbola that satisfies the given conditions. Transverse axis endpoints, (1,5) and (7,5), slope of one asymptote 4/3.
Find an equation in standard form for the hyperbola that satisfies the given conditions. Transverse axis endpoints, (1,5) and (7,5), slope of one asymptote 4/3. (Simplify your answer. Type...
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Find an equation in standard form for the hyperbola that satisfies the given conditions. Foci (0,±15), transverse axis length
Find an equation in standard form for the hyperbola that satisfies the given conditions.Foci (0,±15), transverse axis length (Type an equation. Type your answer in standard form.)
Finding consecutive integers
Find four consecutive odd integers such that three times the sum of the first and second is 15 less than the fourth.
04/28/23
Money word problem
Christopher's piggy bank contained $7.40 in nickels and pennies. If there were 80 more pennies than nickels, how many of each did he have in the piggy bank?
Probability word problem
Sonal has a jar that contains 6 blue marbles and 5 violet marbles. She randomly draws one marble and then draws another marble. What is the probability of drawing two violet marbles if the marbles...
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Distance word problem
Aaron and Jessica walked to the dock at 2 miles per hour, jumped into the boat, and motored to Denver at 46 miles per hour. If the total distance was 21 miles and the trip took 5 hours in all, how...
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Precalculus
04/28/23
pre calc question
A scientist begins with a sample of 160 grams of a certain radioisotope. After 19 days, the sample has decayed to 134 grams. How long after the beginning of the process will it take to decay to 30...
more
Precalculus
04/28/23
pre calc question
Convert the equation f(t)=281e0.22t to the form f(t)=abta = b = Give answers accurate to three decimal places
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