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olga55 [171]
3 years ago
9

Rounding 552,945 with the first 5 underlined

Mathematics
1 answer:
NISA [10]3 years ago
8 0
553,000 is the answer for rounding up
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Calculate the frequency in hertz of photons of light with energy of 8.10 × 10-19 J.
stira [4]
The Planck–Einstein relation E=hv gives that E, the photon energy, is equal to h, Planck's constant, times <span>ν</span>, the frequency.

We can solve the equation in terms of frequency to get
v= \dfrac{E}{h}

We substitute our given energy, 8.10 \times 10^{-19} J, and Planck's constant, 6.626 \times 10^{-34} Js.

v= \dfrac{8.10 \times 10^{-19} J}{6.626 \times 10^{-34} Js}=1.22 \times 10^{15} s^{-1}=1.22 \times 10^{15} Hz
5 0
3 years ago
Centro en (4,-1) y pasa por el punto (-1,3)
maks197457 [2]

Answer:

yniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehcsacasvavadvadvsdvsdvsdvdvdvyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh ollehyniar hcum oot sti ereh pleh esaelp retaw eht rednu ma i uoy era woh olleh

Step-by-step explanation:

7 0
2 years ago
PLS HELP ASAP I MEAN ASAP PLS
Julli [10]

Answer:

<em>(B). - 3 ≤ x < 1 </em>

Step-by-step explanation:

\frac{\sqrt{x+3} }{\sqrt{1-x} }

Given expression is defined for

1). x + 3 ≥ 0 ⇒ x ≥ - 3

and

2). 1 - x > 0 ⇒ x < 1

<em>- 3 ≤ x < 1</em>

3 0
3 years ago
A)<br> 3 x a x 2 x b<br> b)<br> с^5 х с<br> c) 2y^4 x 5y^3<br> d) 3gh? x 4g^3h^3
WINSTONCH [101]

Answer:

a)6ab

b)5c

c)

Step-by-step explanation:

a)3×2=6 and a×b=ab

then 6×ab=6ab

8 0
2 years ago
Please help 5 points each but beware if you use my points for no reason I'll report you
Ghella [55]
82944 cubic centimetres do u need an explanation?
3 0
2 years ago
Read 2 more answers
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