All categories

3 years ago

PLEASE HELP ME I need help on this ASAP!!

Mathematics

1 answer:

Deffense [45]3 years ago

5 0

Answer:

help on what

Step-by-step explanation:

You might be interested in

++<img src="https://tex.z-dn.net/?f=1%2Fu%2B1%2Fv%3D1%2Ff" id="TexFormula1" title="1/u+1/v=1/f" alt="1/u+1/v=1/f" align="absmidd

Alex787 [66]

mmmhmmm dont really know why ur telling us dis

4 0

2 years ago

Prove the polynomial identity.

Kaylis [27]

Answer:

Proven

Step-by-step explanation:

We prove the polynomial with factorization. We must first simplify the expression before we can factorize:

$(4\cdot{x^2}-2)\cdot{(4\cdot{x^2}-2)}-16\cdot{x^4}$

$16\cdot{x^4}-8\cdot{x^2}-8\cdot{x^2}+4-16\cdot{x^4}$

$4-16\cdot{x^2}$

4 is the common number and we can take it out of the expression:

$4\cdot{(1-4\cdot{x^2})}$

We can factorize further with the x term being zero. For this to be true we must have -2x and 2x to cancel out and therefore the expression is proven:

$4\cdot{(1-2\cdot{x})}\cdot{(1+2\cdot{x})}$

5 0

2 years ago

An object has a mass of 18 grams and its volume is 2 cm3 calculate density

Anna [14]

The density is 9 g/cm3

6 0

2 years ago

Read 2 more answers

Sam just purchased a new car. After his employee discount and the sale that the dealership applied to the original price, Sam pa

VMariaS [17]

$19,905.22 (if the Dealership discount was added after the normal price and the Employee Discount added last)

8 0

3 years ago

En red socks and ten blue socks are all mixed up in a dresser drawer. The 20 socks are exactly alike except for their colour. Th

Gennadij [26K]

Answer:

3 socks

Step-by-step explanation:

Given that, there are 10 red socks and 10 blue socks which are mixed up in the dresser drawer.

The socks are identical except the color.

We need to find out, the minimum number of socks to be taken out from the dark room so that there is at least a pair of matching socks comes out of the drawer.

Let us consider the cases:

First Two socks pulled out of the drawer.

Case 1: Both are red or both are blue.

In this case, the matching pair is ready.

But there can be other case as well.

Case 2:

One red and one blue color taken out.

Now, when we pull the third, there will be either red or blue.

That will make a pair.

Therefore, to cover up all the cases and to be certain to get a matching pair out of the drawer, <em>at least 3 socks must be taken out</em>.

So, the answer is:

We need to take out at least 3 socks.

5 0

2 years ago