Cos theta = -4/9 with theta in quadrant 2, find sin theta

I don’t know the answer .

05/16/18

Verify -(-a) = a for each of the following a =13/-17, a = -21/-19, a = -17/-19

Please find answer to finish my assignmaent. Please  

pythagorean theorem

jovi is laying a foundation for a garage with dimensions 10 m by 6 m. to check the foundation is square, jovi meaurrs a diagonal. how long should the diagonal be?

Math Help!!!! How do I find the height of a triangle using the pythagorean theorem???

The triangle gives the base and the hypotenuse, how do i find the height using a^2 + b^2 + c^2?????

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 – 8x – 3.

my question is Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 – 8x – 3. i really need help with this question  

05/15/18

what is 12x+3y=9 in slop intersept?

I need help! I have so much math homework and I cant figure this out! Thanks in return.

05/15/18

What chemical property is present in substances that react slowly to oxygen?

Science question

Math Question Joeal reads a book at an average rate

joel reads a book at an average rate of 35 pages per hour how long will it take him to read 245 pages with work

I am not sure what this question means

Given the equation: A = B C 1. Solve for C, or rather, what is C equal to (in terms of A and B)? Use capital letters and no spaces. C = 2. Solve for B, or rather, What is B equal to (in terms of... more

05/15/18

(5x-9)^2 please help

I'm kinda confused is it 25x^2+81 or no.

The tree in Frank's backyard is 9.1 meters high. How high is it in centimeters?

Be sure to include the correct unit in your answer. 

what is the answer of pi times a radius of 12

r=12 to get this answer I need to multiply blank times blank 

parallel to y-axis going through points (2,5)

please find the parallel to y-axis going through the points A (2,5)

How do you solve this?

A person breathes in about mc004-1.jpg cubic meters of air per second. How long does it take to breathe in 2.5 cubic meters of air?

cot/2= squareroot 3/3

cot   √3 —  = — 2       3

the gradient of a straight line graph which is delta y over delta x which coordinate do you minus fist the one on the right from one on the left ?

Does it matter which quadrant the line is in it is in ? which coordinates on line is considered the y2-y1/x2-x1

How were slaves transported to the New World

I don’t get any of this and I need help

without hitting a 10 foot ceiling, how high can you throw a bean bag into a hole from 30 feet away

without hitting a 10 foot ceiling, how high can you throw a bean bag into a hole from 30 feet away  

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