Mathematics - 2 September 2007

An airplane covered 19 miles of its route while decreasing its altitude by 41,000 feet. Find the slope of the airplane's line of descent. Round to the nearest hundredth. [Hint: 1 mi = 5280 feet.]

2007-09-02 05:02:13 · 8 answers · asked by ? 2

2007-09-02 04:57:40 · 7 answers · asked by amanda 1

Find the x- and y-intercepts of the graph of y = 2x + 3/2
.
a. x-intercept 3, y-intercept 2/3
b. x-intercept -3, y-intercept 3/4
c. x-intercept - 3/4, y-intercept 3/2
d. x-intercept - 3/2, y-intercept 2/3
e. x-intercept - 2/3, y-intercept 3/2

2007-09-02 04:49:46 · 7 answers · asked by Anonymous

Find the equation of the circle with center (-1,7) and radius 2 .

a. x ^2 + 2x + y ^2 - 28y + 50 = 0

b. x ^2 - 2x - y ^2 - 14y - 48 = 0

c. x ^2 + 14x + 48 + y ^2 - 2y = 0

d. x^ 2 - 14x + 48 + y ^2 - 2y = 0

e. x ^2 + 2x + y ^2 - 14y + 48 = 0

2007-09-02 04:49:32 · 7 answers · asked by Anonymous

the form of an equilateral triangle. If the inside perimeter of the frame is 42 inches, find the radius of a quarter.

2) A rectangular sheet of paper ABCD is three inches in width and four inches in length. The paper is folded so that the two diagonally opposite corners A and C coincide. Determine the length of the crease in the paper.

3) If x,y, and z are unequal real numbers whose sum is zero and whose product is two, determine the value of x^3+y^3+z^3.

4)Among grandfather's papers an old bill was found:"72 Turkeys $)_67.9_." The first and last digits of the number that represented the totaly price of the turkeys are replaced here with blanks as they had faded and are now illegible. What are the msising digits?

Thanks so much!

2007-09-02 04:37:28 · 4 answers · asked by foreverhero14 1

So... I am taking a radiology class and we are getting reintroduced to some math, it has been years since I have taken a math class...I got through 99.9% of it and now I am on the last problem and have no idea! Please walk me through it!
Also please tell me what kind of problem it is so I can look it up and re-learn these!

SOLVE FOR M: 300 = 600e^-2M
(-2M being the exponent on the e)

Thanks !!!

2007-09-02 04:24:28 · 9 answers · asked by J A 2

I am really confused by this, how could I convert it? Could you show me step by step please? And explain as well. I'm stuck, I figured it's about 97.7 seconds per kilometer, which is 137.7 seconds per kilometer, or 1:37.7/1

I figure then I multiply the time by 60 to get how fast it is, which I get like 90 km/hr, which is obviously completely wrong. But I checked the answers in the back of the book but it says 36.88 km/hr. HELP PLEASE!

2007-09-02 04:19:05 · 8 answers · asked by waffle 2

The line y=g(x) is a tangent to the curve y=|f(x)| at the point P, and cuts the curve y=|f(x)| at the point Q.

Show that k=2a.

2007-09-02 04:09:38 · 3 answers · asked by eazylee369 4

2007-09-02 04:06:10 · 4 answers · asked by abraymond5 1

2007-09-02 03:54:32 · 8 answers · asked by Anonymous

y = (5-x)^(1/3)

FInd the inverse function.
Enter the RHS(right-hand-side) of the function.

2007-09-02 03:43:05 · 5 answers · asked by Anonymous

Hi... I'm making a speaker box for my car and the type of box I want to make is triangler in shape. So... I need the formula for figuring out the volume of a triangle box. Thank you!!!

2007-09-02 03:32:04 · 3 answers · asked by Anonymous

Classify each statement as true or false, and explain your reasoning in each false case.
1. One line contains exactly two points
2. the intersection of two planes is a line
3. three lines can intersect at more than one point

thanks in advance!

2007-09-02 03:07:45 · 8 answers · asked by skateme1 2

Integrate (x^2-2)/(x^2-1) dx

(Use partial fractions)

Thanks in Advance

2007-09-02 03:03:07 · 3 answers · asked by NanoSpark 2

2007-09-02 02:06:35 · 8 answers · asked by Anonymous

solve the equation P=2i+2W for W.

2007-09-02 01:50:38 · 5 answers · asked by yourdaddy 2

determine a value of a so that each point named is on the graph of.

1. f(x)= ax^2
a, (2,2)

2. f(x)= ax^2 - 2x + 3
a. (3,2)

3. f(x)= a(x+1)^2 - 5
a. (4,0)

thankssss

2007-09-02 00:25:30 · 5 answers · asked by xah8 1

2007-09-02 00:13:43 · 6 answers · asked by zyntax24 1

2007-09-02 00:00:31 · 3 answers · asked by Michael H 2