10/10/17
Find an identity for cos(4t) in terms of cos(t)cos(t).
Any identity please? I'm not sure which one fits this problem.
10/10/17
Given the function f(x) = x^2 and k= -1, which of the following represents a function opening downward?
A:f(x)+k
b: kf(x)
c: f(x+k)
d: f(kx)
10/10/17
Kennedy had several years’ experience working in the medium of television, but Nixon did not.
john f kennedys inaugural speech
10/10/17
What is the remainder when 3x2 + 6x - 4 is divided by x + 2
3x to the 2 power plus 6x minus 4 is divided by x plus 2
10/10/17
Three military leaders take over a nation. They make all the rules and do not allow any discussion. What kind of government does this nation have?
what kind of government is this?
10/10/17
the quotient of a number and -2 is the same as the sum -4 and 10
One step equation word problems
Solve the following inequalities: a. |-2x+4|-5<10 b. 7+2|2-7x|>9
I'm not sure if I'm doing this right
For a. I got x>11/-2 or x<19/2
interval notation: (-infinity, infinity)
For b. I got x<1/7 or x>3/7
interval...
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Simplify completely and arrange in descending order: (-2-x)(x^(2)-4x+1)-(x+3)(-x^(2)-2x+3)
Not sure how to simplify this.
10/09/17
probability
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 40% of the...
more
10/09/17
a large box shaped like a prism needs to be painted.write a formula for the area to paint in terms of length,width,and height
i dont know how to do any of this
10/09/17
Find the equation of the line with x-intercept (-5,0) And y-intercept (0,-3)
Find the equation of the line with x-intercept and y-intercept
y=
10/09/17
Find the equation of the line that passes through the pair of points. Write your answer in slope intercept form
(3,3),(-6,-3)
y=
10/09/17
Find the equation of the line that passes through the pair of points. Write your answer in slope intercept form
(-2,0),(0,2)
y=
10/09/17
Cross Sections and Area
A rain gutter is made from sheets of aluminum that are 1212 inches wide by turning up the edges to form right angles. Determine the depth of the gutter that will maximize its cross- sectional area...
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10/09/17
growth and decay?
The price of a gallon of gas in 2009 was $1.78 and it has increased 31% per year.
a. Find an equation to model the gas price since 2009.
b. According to your model, what is the average cost...
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10/09/17
The graph B goes through (0,0) and (4,300)
Going to college in 18years . First person saves $80 every month. the Graph of the second person go through (0,0) and (4,300) . What’s the total amount saved ?
10/09/17
angela has twelve fewer record that greg, together they heve 86 records, how many recoreds does angela have
we are trying to find out how many records angela has and we need the word problem equatuon
10/09/17
Rick wants to buy a tool set with original price $165. Next week the tool set will be on sale for $40 off.
Solve applications with discount or mark up.
Need to know how to solve it step by step.
10/09/17
The door in a room is 8 ft tall.
The door in a room is 8 ft tall. An architect's model of the same door is 2 in. high. What is the ratio of the height of the model to the real height?
10/09/17
Suppose 2500 students
suppose 2500 students take a college exam the scores have a normal distribution with mean is 52 points and standard deviation 11 points for a score of 77 what is the z value
10/09/17
Four loaves of bread cost rupees 52. what will be the cost of a dozen such loaves
It's from ratio and proportion chapter 9 class 7
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