math class

math class

Not completely sure what this question is asking.

Please help! Use the Pythagorean Identity Sin^2 t +Cos^2 t =1 and give information to find Cos t Sin t = 2 Square root 2/ 3; 0 Less than or equal to T less then pi/2...

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25x2+ 20x + 5y − 1 = 0

The falls that make up Niagara Falls are eroding backwards, thus migrating upstream. From 1842 to 1902 they eroded by about 69 meters. What was the rate of erosion along the falls? Give an answer...

A right angled triangle with hypotenuse of length 2 contains the angle π/6. What are the exact lengths of the remaining two sides? Give your answer as a list [in brackets], using sqrt( ) for √ if...

I need help answering the question

One integer is 8 times another. If the product of the two integers is 128, then find the integers. Find 2 possible answers

An object is projected directly upward from the ground. Its distance in feet from the ground in t seconds is s equals 96 t minus 16 t squared . A small circle is above a horizontal line segment...

How do i solve (b) Write l in terms of w. l = Write an equation for the perimeter in terms of w. P = (c) Find the dimensions of the room. w...

Using the compound intterest formula:A=P(1+r)^t . How do I solve for t or r? 1. A=$2500,P=2000,t=5 2.A =$1500,P=$1000,r=4%

(3/y-1) - (3/y2-1) The answers can be any of the following (I am prepping for a placement exam at a university): A) 3y/(y+1)(y-1) B) 5y/(y+1)(y-1) C)...

Create a linear inequality that has the solution of x ≤ -2/5. You must have at least two terms on each side of the equation that contains the variable x and at least one constant term on the...

1. create a linear equation that has a solution of x= 2/5. You must have at least two terms on each side of the equation that contains the variable x and at least one constant term on the left or...

I do not understand how to come up with this answer. I am doing something wrong somewhere.

need to find r i know its r= a2-p2/p2 but i dont know the steps

Bonnie and Claire are each to inherit some money from their Aunt Marry's estate. Aunt Marry left them a total of 21,000. Her will states that Bonnie is to receive $3,000 less than twice what Claire...

Grace had a maturity value of $6,682.50 on an original investment of $6,000. She earned 6.5% annual simple interest. What was the duration of Grace’s investment? I need help with this problem.

Convert each number to scientific notation and multiply. Write your answer in scientific notation. (72,000,000)(400,000,000) Write 72,000.000 in scientific notation. 72,000,000= Write...