3 years ago

PLEASE HELP ME I NEED THIS SOON!!!

Mathematics

1 answer:

Artist 52 [7]3 years ago

4 0

I'll help you!! What do you need help with?

You might be interested in

Simplify 3+7x-(2+9x)

viva [34]

Answer:

-2x + 1

Step-by-step explanation:

3 + 7x - (2 + 9x)

Distribute the negative:

3 + 7x - 2 - 9x

Combine like terms:

-2x + 1

8 0

3 years ago

An FM radio station broadcasts at 84 megahertz (MHz). What is the energy of each photon in Joule? Use h = 6.6 * 10 ^ (- 34) * j

iragen [17]

Answer:

$E=5.544*10^{-26} J$

Step-by-step explanation:

The equation for photon energy is given by:

$E=hf$

Where:

$h=Planck\hspace{3}constant=6.6*10^{-34} \\f=Frequency\hspace{3}of\hspace{3}the\hspace{3}wave=84000000Hz$

This equation telling us that the higher the frequency of the photon, the greater its energy. And the longer the photon wavelength, the lower its energy.

So, replacing the data provided in the previous equation:

$E=(6.6*10^{-34} )*(84000000)=5.544*10^{-26} J$

7 0

3 years ago

Please help on 19 and 20

Svetradugi [14.3K]

Answer:

c and d

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

No explanation needed just the answer please

Otrada [13]

Answer:

Step-by-step explanation:

65x- 12 = 43x + 10

65x - 43x = 10 + 12

22x = 22

x = 22/22

x = 1 

(65x- 12) =

65 * 1 - 12 = 53

43x + 10

43 * 1 -12 = 53

5 0

3 years ago

ANSWER FOR 20POINTS PLEASE

krok68 [10]

Answer:

$| {7}^{2} - 8| = |49 - 8 = |41| = 41$

7 0

3 years ago

Read 2 more answers