For a recent Congress, there were 10 more Democrats than Republicans in the U.S. Senate. This resulted in a ratio of 11 Democrats to 9 Republicans. How many senators were Democrat and how many were...

For a recent Congress, there were 10 more Democrats than Republicans in the U.S. Senate. This resulted in a ratio of 11 Democrats to 9 Republicans. How many senators were Democrat and how many were...

The population of the world in 1987 was 5 billion and the relative growth rate was estimated at 2 percent per year. Assuming that the world population follows an exponential growth model, find the...

For f(x)=3x2+8 and g(x)=4x+3, find the composite function of (f x g)

how would I graph (on the same graph) y<1/2x-2 y>-x+2

I'm trying to figure out the easiest way to find the Minimum point of: f(x)=2x^2+20x+12

An unknown radioactive element decays into non-radioactive substances. In 980 days the radioactivity of a sample decreases by 52 percent. (a) What is the half-life of the element? half-life: (b)...

A longer problem that I'm having trouble figuring out. Police arrive at a murder scene at 1: 00 AM and immediately record the body's temperature which was 90 degrees F At 3:00 AM...

A superhero is rendered powerless when exposed to 55 or more grams of a certain element. A 350 year old rock that originally contained 650 grams of this element was recently stolen from a rock museum...

Given the function P(t)=3t^4−24t^3+21t^2 P intercept is: T intercepts are:

The function f(x)=2x^3−39x^2+180x+7 has one local minimum and one local maximum. Use a graph of the function to estimate these local extrema. This function has a local minimum at...

The polynomial of degree 4, P(x) has a root of multiplicity 2 at x=1 and roots of multiplicity 1 at x=0 and x=−3. It goes through the point (5,128). Find a formula for P(x). P(x)=

A person standing close to the edge on top of a 64-foot building throws a ball vertically upward. The quadratic function h(t)=−16t2+48t+64 models the ball's height about the ground, h(t),...

Suppose that scores on the mathematical portion of the SAT college-entrance examination have a mean of 500 with a standard deviation of 100 and are normally distributed. A university that Maria wants...

Nationwide it has been shown that the average height of American adult men is approximately 69.7 inches and a standard deviation of 2.7 inches. Assuming that the heights are normally distributed and...

Consider that the National Health Center for Statistics reports that females (age 21) have heights that are normally distributed, approximately centered at a mean of 65 inches (5 feet 5 inches) with...

Suppose that the scores on particular FDMAT 108 unit exam at BYU-Idaho were approximately normally distributed with a mean of 74 and a standard deviation of 8. 7. About what percentage...

Given the data set below, find the standard deviation and compare it with the estimate of the standard deviation using the range rule of thumb. {36,4.15,23.4,20.25,20.25,20.25,27.25,30.05,9.75 11...

Given the data set below, find the five number summary and pick the appropriate box-plot. $\{43,30,44,37,39,23,37,28}$ 5. The Minimum is (Round to the nearest tenth.) 6...

A scientist determined that the bones from a mastodon had lost 70.2?% of their carbon-14. How old were the bones at the time they were discovered?

Expand by minors on the row or column that appears to make the computation easiest. [-3, 0, 0; 7, 11, 0; 1, 2, 2] (so semicolon means end of row)

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