Mathematics - 22 August 2007

2007-08-22 14:23:39 · 17 answers · asked by Anonymous

can i add ...for example...sin2x and sin3x
or does that not work?thx
its a summer assignment for calculus and im afraid i'm a bit rusty

2007-08-22 14:15:34 · 2 answers · asked by bassboy22 3

2007-08-22 14:13:18 · 3 answers · asked by xlhollisterboi 1

At the scene of a traffic accident, a police investigator must determine the speed of both vehicles. The investigator uses the formula where s represents speed, measured in miles per hour, and l represents the length of the skid marks, measured in feet. Approximately how long are the skid marks of the car that is going 65 miles per hour?

2007-08-22 14:13:05 · 2 answers · asked by Marcela M 1

find next 2 terms




1,3,7,15,31



M,V,E,M




H,He,Li,Be

2007-08-22 14:11:22 · 5 answers · asked by gjsfjsfk 3

2007-08-22 14:08:34 · 10 answers · asked by thecure_2_late 1

Daniel is a waiter in a restaurant. He is in charge of five tables. Three of the tables seat four people, and two of the tables seat two people. The restaurant told him to expect three parties of people at each table each night. Daniel was told that he would receive between $2.00 to $2.50 tip per person.

Part A. How much can Daniel ESTIMATE he will receive in tips each night?

Tips per night $___________.

Part B. Explain how you arrived at this decision.

2007-08-22 14:06:31 · 5 answers · asked by Marcela M 1

please post helpful steps. i need to learn this, thanks soooo much!!!!


7(5x+3)=7(x+5)-14+28x

2007-08-22 14:05:09 · 11 answers · asked by ineedmathhelppeas 1

Rachel has $100 in her savings account and deposits an additional $25 per week. Joanna has $350 in her account and is saving $5 per week. After how many weeks will the two girls have the same amount of money? You must use an algebraic equation to solve.

2007-08-22 13:57:37 · 6 answers · asked by Marcela M 1

Please help

2007-08-22 13:54:22 · 2 answers · asked by xlhollisterboi 1

If the equation of a circle is x² + y² = r² and the equation of the tangent line is y = mx + b, show that r² (1 + m²) = b².

Hint: After substituting y = mx + b into the circle equation, the resulting quadratic equation has exactly one solution.

2007-08-22 13:48:11 · 4 answers · asked by laffytaffychick13 1

x-y=0
12x-5y=-21

p+q=4
4p+q=1

m+2n=1
5m+3n=-23

SHOW YOUR WORK!!!!!!!!!!

2007-08-22 13:46:03 · 3 answers · asked by Anonymous

2007-08-22 13:30:55 · 3 answers · asked by Ronald B 1

I did some weird fiddling with math and I got a number such that divided by itself = -1. It is somehow related to i (imaginary). Somebody tell me what's going on?

2007-08-22 13:28:51 · 2 answers · asked by Mitchell 5

A rocket is shot straight into the air at an initial velocity of 96 ft./sec. The height of the rocket after x seconds is represented by the formula h = 96x – 16x2. What is the maximum height the rocket reaches?
6 ft.
144 ft.
180 ft.
240 ft.

2007-08-22 13:26:24 · 4 answers · asked by Anonymous

The Valley High School student council is sponsoring a dance. They anticipate that 500 students will attend. The ticket price is $3, and they estimate that for every $.20 increase in ticket price, 25 fewer students will attend. What ticket price will maximize the student council's profit?
$3.25
$3.40
$3.50
$3.80

2007-08-22 13:25:13 · 2 answers · asked by Anonymous

if I bought something for 250.00 plus 8.250 sales tax, whats the total cost I would pay?

2007-08-22 13:25:03 · 3 answers · asked by invalid chromosome 2

Which equation has the solutions x =1/2 and x =3/4 ?
1. 8x2 + 10x + 3 = 0
2. 8x2 – 10x – 3 = 0
3. 8x2 + 10x – 3 = 0
4. 8x2 – 10x + 3 = 0

2007-08-22 13:24:22 · 1 answers · asked by Anonymous

Identify the value of the discriminant for the equation 6x2 = 2x – 1.

(A) 28
(B) 24
(C)–22
(d) –20

Which one?

2007-08-22 13:14:41 · 3 answers · asked by Anonymous

while walking by a farmyard filled with chickens and rabbits, a farmer decided to count the heads and feet of his animals. He came up with a sum of 100 (counting both heads and feet). How many of each animal were in the farmyard?

2007-08-22 13:13:53 · 4 answers · asked by Ron 3

for algebra 2

I need help with this one also.
3(x-2)= 5(4+x)

2007-08-22 13:04:34 · 5 answers · asked by Anonymous

here is a mathematical equation, the first to find why 2+2=3 will get 10 pts

A=B A^2=AB < multiply both sides by A
A^2-B^2=AB-B^2 (A+B)(A-B)=B(A-B) ---------------------------- < _Divide by (A-B)
(A-B) <
A+B=B B+B=B 2B=B --------- <__divide by B
B <
2=1 < result
2+2=3
P.S. yes I am allowd to convert A to B beacause A = B. This is actually simple algebra. If at any time you get comfused, get 2 coins, and another 2 coins, and put them together, if you come up with 3 coins, then I want to see the coins your using ;)

2007-08-22 12:56:53 · 9 answers · asked by Anonymous

Identify the place value of the number 5 in the number 869.0325

Ten-Thousands

Ten-Thousandths

Hundreds

Hundredths

Find the product of the decimals: 0.37 x 0.46 =

1.702

17.02

0.1702

170.2
Find the product of the decimals: 0.15 x 0.24 =

36.0

3.600

0.36

0.036

Choose the largest number from the list below.

75

82

73

80
Think about where the given numbers are on a number line and use the symbols to compare them. 101,001 ___ 100, 101

<

=

>

2007-08-22 12:48:42 · 4 answers · asked by MiSs MoM 2

2007-08-22 12:41:00 · 5 answers · asked by Anonymous

please help

2007-08-22 12:40:27 · 11 answers · asked by Anonymous

write an algabraic expression.
the sum of two numbers is 90. the larger number is 3 more than twice the smaller number. What are the two numbers?

2007-08-22 12:30:22 · 13 answers · asked by Anonymous

i dont get his?? so please help!

2007-08-22 12:28:28 · 14 answers · asked by I♡ČÚŦĘPurses&Shoes 2

hi i am in calculus and i need to find the vertext point to y=x^2-4x+7 i need some to explain how to do it!! PLEASE!!!

2007-08-22 12:26:44 · 5 answers · asked by Anonymous

Kendra is speeding along the highway and is stopped by a police officer. the office gives her a ticket and then she continues on her way. Graph the time on the horizontal axis and the speed on the vertical axis?

2007-08-22 12:08:11 · 7 answers · asked by Anonymous

In reverse order they are decillion, nonillion, octillion,septillion. It is similar to December, November, October and September. However, decillion is 10, Nonillion is 9, Octillion is 8, Septillion is 7. And...September is the 9th month, October, the 10th month, November the 11th month and December the 12th month. Anyone have the reasoning behind this and it's relation? Website with info will be appreciated.

2007-08-22 12:06:27 · 7 answers · asked by Deanna 2