jboy314

This is the same thing as (-1)(-1)(-1)(-1)=1(-1)(-1)=-1(-1)=1

The symbol means you will have two ansers;one by addition and one by subtraction

4+11.2=15.2

4-11.2=--7.2

woohoo! happy to help

In a rhombus each diagonal bisects the other to form 4 right triangles.  The side lengths of these triangles will be half the diagonal lengths since the diagonals were bisected.  This leaves us triangles with side lengths of 20 and 48 with the hypotenuse being a side length of the rhombus.  Apply the pythagorean theorem:

20^2+48+2=h^2

400+2304=h^2

2704=h^2

sqrt(2704)=h

52=h

Any whole number can be expressed as a product of prime factors.  An example of this is 60=(2^2)(3)(5)

8!=8*7*6*5*4*3*2*1=40,320.

Think of there being 8 different places that you can put a single piece of fruit.  when you first start pick a spot, there are 8 different options you have for putting a piece there.  Once you place it you move to the second spot, you now have seven pieces of fruit left to pick from because one was already used.  Go to the third spot, now you only have 6 pieces to pick from.  This continues until you run out of fruit and places to put it.

Of course we get paid!  Our currency is math problems and we get them upfront.  Thanks for the three that you just donated!

3) an increase from 2900 to 4500 is an increase of 1600.  1600/2900=.55 (rounded to nearest hundredth) so this is about a 55% increase

2)   We already know that 1 cm = 70 km in this scale.  Three times as many centimeters would mean three times as many kilometers so 3cm=210 KM

1) LW=148

L20=148

L=148/20=37/5=7.4

My response will be based on the assumption that you mean triangle QWE rather than DeltaQWE and also that we are working in a plane.

Since the interior angles sum to 180, that means angle W=45 and we have an isosceles right triangle.  With that, knowing one leg, EW=7, guarantees the other leg is congruent so WE=7 as well. 

In a 45-45-90 triangle the hypotenuse is always longer than the legs by a factor of sqrt(2), ergo QW=7sqrt(2)

since 50% is equivalent to a half it is like asking 12.1 is half of what number.  That would be 24.2 since half of 24.2 is 12.1

More than likely you're being asked to combine like terms and write a simplified answer. So put all the k terms together and the I terms to gether and let's see what we get

z=3k+i+1/10(12+k)+(3k-4)i

=3k+i+12/10+k/10+3ki-4i

=3k+3ki+12/10+k/10-3i

31k/10+3ki-3i+6/5

add 52 to both sides so -y=124 then y=-124

they arent.  the first is 20 while the second is 22. 

If you're getting the same answer it means you either have an error in your calculation or are typing it into a calculator incorrectly