04/21/22

Find k, so that the quadratic equation (k+1)x 2 −2(k+1)x+1=0 has equal roots.

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04/21/22

Compute the test statistic t
Medical literature tells us that our blood is mainly composed of red and white corpuscles and a normal human body must average 7250/mm3 of white blood cell counts. If a sample of 15 individuals... more
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04/21/22

Find f(x) and g(x) such that h(x)=(f@g)(x)
h(x)=√3x+6Suppose that g(x)=3x+6f(x)=
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04/21/22

A box has a square base of side 𝑥 and height ℎ.

(a) Find the dimensions 𝑥, ℎ for which the volume is 24 and the surface area is as small as possible. (Use symbolic notation and fractions where needed.) 𝑥= ℎ=(b) Find the dimensions 𝑥, ... more
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04/21/22

How many years would it take a 2000 gram sample to decay to only 400 grams?
The rate of decay for a particular type of radioactive particle is relatively constant, and can be represented using the equation (- In 2) N (t) = Nee 3 Where t is time, N is the mass of the... more
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04/21/22

Normal Curve Applications
The amounts of time per workout an athlete uses a stairclimber are normally​ distributed, with a mean of 24 minutes and a standard deviation of 7 minutes. Find the probability that a randomly... more
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04/20/22

Just would like to know the answer to this question.
What conjecture can you make about the tangent of complementary angles?
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04/20/22

its a math question in one of my edias
Grace and her friends just dined at a restaurant and left a tip of $28.21, which was equal to exactly 27% of the total bill. What was the total bill in dollars? Round your answer to two decimal... more
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04/20/22

Proving Trig Identities
So, I've been learning proofs since I was in about 8th grade math. But I can't grasp it no matter how many times its explained to me. Its one of those things that makes sense when someone else does... more
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04/20/22

Reflecting Coordinates
As this question may seem easy, I do have trouble with it. When reflecting a coordinate across an axis, what is 4, -6 across the X Axis, and 4, -6 across the Y Axis?
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04/20/22

Write an expression that is equivalent to 4(W + 3) -2
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04/20/22

Which expression represents "6 more than x"?
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04/20/22

233232222223434455
Pablo bought 8.6 kilograms of apples and 1.9 kilograms of oranges. How much fruit did he buy in all?
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04/20/22

Freedom of Speech
Is commenting on someone's body freedom of speech?
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04/20/22

How to find a slope
Find the slope of the line that goes through the given points.(- 1, - 10) and (2, - 4)
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04/20/22

Suppose 4 and 7 are the only individual scores that can be made in a certain game. How many integer total scores are impossible to obtain?
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04/20/22

You build a square with candy pieces and have 15 left over. After adding 22 more pieces, you make a larger square. How many did you have to start with?
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04/20/22

An atom of gold has a mass of approximately 3.25 x 10^22 grams . What is the mass of 9000 atoms of gold
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04/20/22

The area enclosed by

The area enclosed by y = x2 – x and y = 1 – x2 is....
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04/20/22

Write an equation for a rational function that has Vertical asymptotes at x=-3 and x=6, x intercepts at (-2,0) and (1,0) and a horizontal asymptote at y=-2.
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04/20/22

A date in the month of june is selected, then a letter from the word SUPERSTAR is chosen. What is the probability of getting a multiple of 8, And then S?
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04/20/22

Probability Statistics (Question)
The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people. The sample mean is 8.2 minutes. There is a known standard deviation... more
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04/20/22

Probability Statistics (Question)
The standard deviation of the weights of elephants is known to be approximately 15 pounds. We wish to construct a 95% confidence interval for the mean weight of newborn elephant calves. Fifty... more
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04/20/22

A ball is thrown upward from the ground with a velocity of 32 ft/sec. Determine the velocity, max height and time.
A ball is thrown upward from the ground with a velocity of 32 ft/sec. Determine a) the average velocity of the ball on [3/4, 5/4] seconds; b) the instantaneous velocity at t=3/4sec and at t=5/4... more
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04/20/22

Using the Standard Normal Table, determine the following:
a) P(z< -1.24)b)P(z < -3.01)c)P(z ≥ 2.21)d) P( -0.36 ≤ z ≤ 1.11)e) P( -0.75 ≤ z ≤ 0.75)
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