1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PilotLPTM [1.2K]
3 years ago
7

If (7^ 0)=1what are the possible values of x

Mathematics
2 answers:
olchik [2.2K]3 years ago
7 0
Answer: 1

Explanation: anything to the power of 0 is 1 so if it is x to the power of 0 it would be 1
Irina-Kira [14]3 years ago
4 0

Answer: I would say that any number

Step-by-step explanation:

I think so because any number to the 0 power is going to be 1.

For example: 6^0=1 21^0=1

Hope it helped!! ;)

You might be interested in
Is the following statment true or false? explain your reasoning <br> 15+ (4x6) = (15+4) x6
Levart [38]

Answer:foot

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How to factor the algebraic expression 16a + 10
gizmo_the_mogwai [7]
Your fully factored expression should be 2*(8a+5).
6 0
3 years ago
Read 2 more answers
A light bulb of 200W emits 1.5μm.How many photons are emmited per second.​
Vinvika [58]

Answer:

Step-by-step explanation:

An incandescent light bulb filament is approximated by a black body radiator, and in the case of a 60W bulb the filament temperature is around 2500˚C which is 2870˚K.

There are a couple of standard black body results that we can use. Firstly the total irradiance emitted per unit area of black body is equal to:

Ed=σT4

where σ=5.67×10−8 Wm−2K−4 is the Stephan-Boltzmann constant. For our bulb we get:

Ed=5.67×10−8⋅28704=3.85×106 Wm−2

As this is a 60W bulb then it has a total irradiance of 60W. Therefore the equivalent black body surface area is:

603.85×106=1.56×10−5 m2

which is 15.6mm2 of filament area.

Secondly we have that the total number of photons emitted per second per unit area of black body is equal to:[1]

Qd=σQT3

where σQ=1.52×1015 photons.sec−1m−2K−3. For our bulb this is:

Qd=1.52×1015⋅28703=3.59×1025 photons.sec−1m−2

Multiplying by the bulb’s equivalent black body surface area gives the result we require:

3.59×1025⋅1.56×10−5=5.6×1020 photons/sec

As a sanity check we know that these photons have a total energy of 60 joules per second, so the average energy per photon is:

605.6×1020=1.1×10−19 joules

A photon of wavelength λ has energy E=hcλ, and so the average energy corresponds with a photon of wavelength:

λ=hc1.1×10−19=1.9μm

Here’s a chart of the power distribution by wavelength, with the average photon wavelength shown as the dashed line, and visible wavelengths highlighted:

emember that there are a higher proportion of photons for the longer, lower energy wavelengths, so the average is weighted to the right.

We can also see from the original calculation that the general case is:

QdWEd=σQT3WσT4=2.68×1022WT photons/sec

for a bulb of wattage W watts and filament temperature T ˚K. So the photon emission rate is inversely proportional to the filament temperature. As a somewhat counter-intuitive example, a 60W halogen bulb with 3200˚K filament only emits photons at 90% of the rate of the standard 60W bulb, despite being visibly brighter.

The reason is that as the temperature increases then an increased proportion of shorter wavelength photos are emitted and therefore the average energy per photon increases, decreasing the number emitted per second. However at the same time an increased proportion of the photons are visible rather than infra-red, making the bulb appear brighter. Here’s the power distribution chart with the 60W halogen curve added for comparison:

3 0
3 years ago
What is the value of x?<br> 1000<br> O A. 10°<br> B. 1700<br> O c. 30°<br> O D. 70°
Vlada [557]

Answer:

C

Step-by-step explanation:

I solved in the picture

first look white, then blue

Hope this helps ^-^

5 0
3 years ago
EMERGENCY PLS HELP: What is the area of the triangle?
storchak [24]

Answer:

6ft i think

Step-by-step explanation:

Formula: LxWxH/2

4x3=12/2=6

3 0
3 years ago
Other questions:
  • Is a rectangle a square
    11·2 answers
  • What is 98 * 14 <br><br><br><br> ill give brainliest
    12·2 answers
  • What does 1,000,000,000divided by 18 • 20 - 108 equal?
    8·1 answer
  • a rectangular room is twice as long as its breadth and its peimeter is 540 m. find the number of bricks of size 20 cm ×12cm to p
    11·1 answer
  • What is the measurement of G?
    15·1 answer
  • Why are probability and statistics important?
    14·1 answer
  • Josiah invests $360 into an account that accrues 3% interest annually. Assuming no deposits or withdrawals are made, which equat
    11·2 answers
  • Given, OA = OV, what congruency statements can
    11·1 answer
  • Rick's Phone Service charges $12.52 for an activation fee plus $6 for every gigabyte (g) used.
    10·2 answers
  • How many inches are in 12 1/2 feet
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!