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
Reika [66]
3 years ago
10

Determine the missing factor in x^2-81=(x+9)(n)

Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0
The missing factor is (x-9).
You might be interested in
Hi! It’d be really helpful if someone could explain he two questions below, thanks!
kow [346]
Okay sounds good thanks for the invite too but that’s okay I’m just watching the movie theater and I got my own business cards and then I’ll mail them
4 0
2 years ago
De acuerdo con la tercera ley de movimiento planetario de Kepler, la masa de un planeta es directamente proporcional al cubo de
Sunny_sXe [5.5K]

Answer:

La masa del Sol es 2.509\times 10^{31} kilogramos.

Step-by-step explanation:

Tras una lectura cuidadosa al enunciado, tenemos que la Tercera Ley de Kepler queda descrita por la siguiente relación:

M \propto \frac{r^{3}}{T^{2}}

M = k\cdot \frac{r^{3}}{T^{2}} (Eq. 1)

Donde:

r - Distancia entre los centros del planeta y el satélite, medido en kilómetros.

T - Período oribital del satélite, medido en días.

k - Constante de proporcionalidad, medida en kilogramo-días cuadrados por kilómetro cúbico.

M - Masa del planeta, medida en kilogramos.

Podemos obtener la masa del Sol mediante la siguiente relación:

\frac{M_{S}}{M_{E}} = \frac{\frac{r_{E}^{3}}{T_{E}^{2}} }{\frac{r_{M}^{3}}{T_{M}^{2}} }

\frac{M_{S}}{M_{E}} = \left(\frac{T_{M}}{T_{E}} \right)^{2}\cdot \left(\frac{r_{E}}{r_{M}} \right)^{3} (Eq. 2)

Donde:

T_{M}, T_{E} - Períodos orbitales de la Luna y la Tierra, medidos en días.

r_{E}, r_{M} - Distancias entre la Tierra y el Sol, así como entre la Luna y la Tierra, medidas en kilómetros.

M_{S}, M_{E} - Masas del Sol y la Tierra, medidos en kilogramos.

Si M_{E} = 75.97\times 10^{24}\,kg, T_{E} = 365.3\,d, T_{M} = 27.3\,d, r_{M} = 3.84\times 10^{5}\,km y r_{E} = 1.496\times 10^{8}\,km, entonces tenemos que la masa del Sol es:

M_{S} = \left(\frac{T_{M}}{T_{E}} \right)^{2}\cdot \left(\frac{r_{E}}{r_{M}} \right)^{3}\cdot M_{E}

M_{S} = \left(\frac{27.3\,d}{365.3\,d} \right)^{2}\cdot \left(\frac{1.496\times 10^{8}\,km}{3.84\times 10^{5}\,km} \right)^{3}\cdot (75.97\times 10^{24}\,kg)

M_{S} = 2.509\times 10^{31}\,kg

La masa del Sol es 2.509\times 10^{31} kilogramos.

7 0
3 years ago
Help pretty pretty please :(
Evgen [1.6K]

Answer:

27/20

Step-by-step explanation:

The absolute value of any expression is always positive or zero

3/5 + 3/4

Add the fractions

27/20

Solution

27/20

Alternate form

1 7/20, 1.35

8 0
3 years ago
Read 2 more answers
Meteorologists recorded a temperature change from 72˚F to 28˚F in one day. Write an equation that represents how many degrees th
marysya [2.9K]

Answer:

72-x=28 or 72-28=x

Step-by-step explanation:

5 0
3 years ago
The radius of a circle is 3 meters. What is the circle's circumference?<br> r=3 m<br> Use 3.14 for .
Sunny_sXe [5.5K]
The answer would be 18.84
7 0
3 years ago
Other questions:
  • [x + 3y = -4] [2x + 6y = 5]
    5·1 answer
  • QUESTION 1
    6·1 answer
  • 112 divided by 122038
    7·2 answers
  • What's the answer to number 17....
    15·2 answers
  • HELP Round your answers to the nearest tenth. WILL GUVE BRANLIEST​
    14·1 answer
  • The Hiking Club plans to go camping in a state park where the probability of rain on any given day is 0.66. What is the probabil
    14·1 answer
  • 3. The population of a country increases by 2% every year. The current
    14·1 answer
  • Find the length of x <br><br> help please i need it ssap
    12·1 answer
  • Slope= 2; (14, 33)<br><br> Equation:______
    11·1 answer
  • What is the surface area of the given figure 20cm 32cm 16cm 12cm
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!