All Answers 358514 Answers

Thanks Alan

Anything to the power of 0 is equal to 1.

therefore 2b ^ 0 = 1 

speed = distance covered/time taken.

speed of Tom = 6 yards/4 seconds = 1.5 yards per second ,,

speed of Diane = 5 yards/3 seconds = 1.6667 yards per second ,,

since speed of Diane is much more than that of Tom ,,,,, 

DIANE WILL GET TO 30 YARDS FIRST.

This is how the surface area of the slanted surface should be calculated:

Note that A is written as 2*pi*sqrt(1+(h/r)²)*r²/2  =  pi*sqrt(r² + h²)*r = pi*s*r

You must use ds, not just dx or dy. 

.

Power of a lens combination of two concave lenses is -6D.

If the focal length of one of them is 25cm,

what will be the focal length of the other in cm ?

$$D_1 + D_2 = -6\ dpt \quad | \quad \boxed{D = \dfrac{1}{f}} \quad f = \mathrm{focal}\ \mathrm{length}\ \mathrm{in} \ \mathrm{m} \\\\
f_1 = 0.25\ \mathrm{m}\qquad
D_1 = -\dfrac{1}{0.25\ \mathrm{m}} \quad \small{\text{ Negatively there concave lens}}\\\\
D_1 = -4\ dpt \\\\
D_2 = -6\ dpt - D_1 = -6\ dpt + 4\ dpt = -2\ dpt\\\\
f_2 = -\dfrac{1}{D_2}\ \mathrm{m} = \dfrac{1}{2}\ \mathrm{m} = 50\ \mathrm{cm}$$

Just type in 33 + 1/3......and magic happens.....

Of course......you have to hit "enter"  or " = "

Let's calculate how far you run in one second......this is given by

10ft / 1.8 sec =  50/9 ft per second

And since there are 3600 seconds in one hour....then you run.....

3600 sec/hr  * 50/9 ft/sec =

400 * 50  =

20000 ft per hr

And dividing this by the number of feet in one mile - 5280 - we have

20000 ft per hr/ 5280 ft/mile  =  about 3.78 mph

2.7 b = 54  .....  divide by 2.7  on both sides

b = 20

5 ÷ 1 5/8  =

5 ÷  13/8  =

5/1 ÷  13/8  =

5/1 x  8/13  =

40 / 13

-4 is one root

Performing synthetic division, we have

-4     1   4   -7   -34    -24

            -4          28     24

         1  0   -7     -6       0

The polynomial  is reduced to   x^3 - 7x - 6

3 is also a root.......performing synthetic division again, we have

3   1   0    -7      -6

         3      9       6

     1  3      2       0

And the remaining polynomial is   x^2 + 3x + 2   which has zeros of  -1, -2

So the factorization of the original polynomial is

P(x) = (x + 4) (x - 3) (x + 1) (x + 2)

$$\\\left(\frac{4}{9}\right)^{3/2}\\\\
=\left(\left(\frac{4}{9}\right)^{1/2}\right)^3\\\\
=\left(\frac{\sqrt{4}}{\sqrt{9}}\right)^3\\\\
=\left(\frac{2}{3}\right)^3\\\\
=\frac{2^3}{3^3}\\\\
=\frac{8}{27}\\\\$$

I have already answered this question this morning -

do not repeat your question unless you follow the intstructions laid out here.

http://web2.0calc.com/questions/instructions-on-reposting_1

Since 69 is not a perfect square the answer will be a decimal,

$${\sqrt{{\mathtt{69}}}} = {\mathtt{8.306\: \!623\: \!862\: \!918\: \!074\: \!9}}$$

I am fine thanks :)

(it is in sundanese)

This should fit the simple interest equation y=30(1+0.24)^x

That is an expression - not an equation.  There is no equal sign.

maybe you really want

y=(x-3)/(x^2 - 5x + 6)      ?

If that is what you want then that is what you must input into desmos.

or lets look at this

$$\\y=\frac{(x-3)}{(x^2 - 5x + 6) }\\\\
y=\frac{(x-3)}{(x-2)(x-3) }\\\\
$You cannot divide by 0 so x is not equal to 2 or 3$\\\\
y=\frac{1}{(x-2) }\\\\
$this is a hyperbola with asymtotes at x=2 and y=0$\\\\
$however, there will also be a 'hole' at x=3$\\\\$$

$${\frac{{\mathtt{28.8}}}{{\mathtt{0.1}}}} = {\mathtt{288}}$$

Convert the percentage to a decimal and then divide.

Stop posting stupid questions  because if you ask a stupid question you'll get a stupid answer.

Thank you!! Does this look right??

https://www.desmos.com/calculator/oogo12t2dj

Divide by h, then divide by 1/2 (same thing as multiplying by 2), and you're left with

$$b = \frac{2A}{h}$$

just like that. just type it into the input box.

On other calcs sometimes   the    ^   looks like      $${{\mathtt{x}}}^{{\mathtt{y}}}$$