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
Vika [28.1K]
3 years ago
6

An orbiting satellite has seven solar cells, which function independently of each other. During a mission, each cell fails with

a probability of 0.3. What is the probability that there will be adequate power output for the mission if 7. All 7 cells must be active?
Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0
The due date is 2pm, dolololo
You might be interested in
(X^4)-(45x^2)+324 what are the zeroes? And how many turning points?
dmitriy555 [2]

Zeroes:

We must solve

x^4-45x^2+324=0

To do so, we define the auxiliary variable t=x^2. The equation becomes

t^2-45t+324=0

The quadratic formula yields the solutions

t=9,\quad t=36

Substituting back t=x^2 gives

x^2=9 \iff x=\pm 3,\quad x^2=36 \iff x=\pm 6

So, the zeroes are -6, -3, 3, 6.

Turning points:

Turning points are points where a function stops being increasing to become decreasing, or vice versa. Since functions are increasing when their first derivative is positive and decreasing when it's negative, turning points are points where the first derivative is zero.

We have

f(x)=x^4-45x^2+324 \implies f'(x)=4x^3-90x

If we set the derivative to be zero, we have

4x^3-90x=0 \iff x(4x^2-90)=0

So, the derivative is zero if x=0 or

4x^2=90 \iff 2x^2=45 \iff x^2=\dfrac{45}{2}\iff x=\pm\sqrt{\dfrac{45}{2}}

6 0
3 years ago
Mrs. Nelson has a rectangular flower box that is 5 feet long and 2 feet tall. She wants the width of the box to no more than 5 f
d1i1m1o1n [39]
Volume = length x width x height.
if the width has to be a whole number no more than 5 then the only options for the width is 1, 2, 3, 4, or 5.
V=5x1x2
V=10
V=5x2x2
V=20
V=5x3x2
V=30
V=5x4x2
V=40
V=5x5x2
V=50
the possible volumes are as follows: 10, 20, 30, 40, and 50.
make sure in your answer that you label your volumes so you write ft^3 after every volume answer.

7 0
3 years ago
If 60 newspapers cost $27, find the cost of 16
Tju [1.3M]
16 newspapers cost $7.20
3 0
3 years ago
A wire that is 0.20 meters long is moved perpendicularly through a magnetic field of strength 0.45 newtons/amperes meter at a sp
Natali [406]

Answer:

Given:

length of the wire = 0.20 meters

magnetic field strength = 0.45 newtons/amperes meter

speed = 10.0 meters per second

emf = B * l * v 

B = flux density ; l = length of the wire ; v = velocity of the conductor

emf = 0.45 newtons / ampere meter * 0.20 meters * 10.0 meters/seconds

emf = 0.90 volts

The emf produced is 0.90 volts.

Step-by-step explanation:

6 0
3 years ago
Why does 843,000 round to 840,000 rather than 850,000 when rounded to the nearest ten thousand
Serjik [45]
Because 843,000 is closer to 840,000 than 850,000
5 0
3 years ago
Read 2 more answers
Other questions:
  • A debt greater than 20$ and less than 30$
    9·1 answer
  • Can someone pleaseee heelp mee:(
    14·1 answer
  • Calculate the value of OK.<br> Thank you kind lizards
    11·1 answer
  • EASY I AM JUST DUMB!! WILL GIVE BRANLIEST!!! HELP ASAP!!!!
    7·1 answer
  • Find and interpret the mean absolute deviation of the data. Round your answer to the nearest tenth, if necessary. The mean absol
    7·1 answer
  • One-half of the sum of a number and nine
    15·1 answer
  • PLEASE HELP ASAP!! No explanation needed. Just yes or no please!
    9·1 answer
  • Rewrite in radical form
    14·2 answers
  • I neeed your help pleaseeeeeeeeeeeeee
    8·1 answer
  • The formula for finding the circumference of a circle is C =Xxd where C is the circumference and d is the diameter. Use 3. 14 as
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!