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
In-s [12.5K]
4 years ago
14

Help me on this please

Mathematics
1 answer:
Ugo [173]4 years ago
6 0

Answer:

y=8(\frac{1}{2^x})

Step-by-step explanation:

Given is a graph which shows decrease in y when x increases.Marked in the I quadrant.

Coordinates in the graph are

(0,8),(1,4)(2,2)(3,1)

We find that for one unit change in x, there is 1/2 change in y

When x increases by 1 units y becomes y/2

So the equation is exponential

Equation satisfying all the coordinates can be written as

y=8(\frac{1}{2^x})


You might be interested in
Help me please ....................................
atroni [7]

Answer:

I can't help u with this cause I do not know this kind of math I only learn about Fractions and other math except for algebra.

Step-by-step explanation:

I wish u the best of luck on trying to figure out this answer.

7 0
3 years ago
Memory module consists of 9 chips. The device is designed with redundancy so that it works even if one of its chips is defective
soldier1979 [14.2K]

Answer:

a) P[C]=p^n

b) P[M]=p^{8n}(9-8p^n)

c) n=62

d) n=138

Step-by-step explanation:

Note: "Each chip contains n transistors"

a) A chip needs all n transistor working to function correctly. If p is the probability that a transistor is working ok, then:

P[C]=p^n

b) The memory module works with when even one of the chips is defective. It means it works either if 8 chips or 9 chips are ok. The probability of the chips failing is independent of each other.

We can calculate this as a binomial distribution problem, with n=9 and k≥8:

P[M]=P[C_9]+P[C_8]\\\\P[M]=\binom{9}{9}P[C]^9(1-P[C])^0+\binom{9}{8}P[C]^8(1-P[C])^1\\\\P[M]=P[C]^9+9P[C]^8(1-P[C])\\\\P[M]=p^{9n}+9p^{8n}(1-p^n)\\\\P[M]=p^{8n}(p^{n}+9(1-p^n))\\\\P[M]=p^{8n}(9-8p^n)

c)

P[M]=(0.999)^{8n}(9-8(0.999)^n)=0.9

This equation was solved graphically and the result is that the maximum number of chips to have a reliability of the memory module equal or bigger than 0.9 is 62 transistors per chip. See picture attached.

d) If the memoty module tolerates 2 defective chips:

P[M]=P[C_9]+P[C_8]+P[C_7]\\\\P[M]=\binom{9}{9}P[C]^9(1-P[C])^0+\binom{9}{8}P[C]^8(1-P[C])^1+\binom{9}{7}P[C]^7(1-P[C])^2\\\\P[M]=P[C]^9+9P[C]^8(1-P[C])+36P[C]^7(1-P[C])^2\\\\P[M]=p^{9n}+9p^{8n}(1-p^n)+36p^{7n}(1-p^n)^2

We again calculate numerically and graphically and determine that the maximum number of transistor per chip in this conditions is n=138. See graph attached.

6 0
4 years ago
The figure shows the graph of f(x) as a solid curve and the graph of g(x) as a dashed curve which equation describes the relatio
Olenka [21]

Answer:

A. g(x) = f(x - 6) + 2

Step-by-step explanation:

Vertex moves from:

(-6,-2) to (0,0)

g(x) = f(x - 6) + 2

4 0
3 years ago
Peter was given 40 words to spell to qualify for a prize. He must spell at least 90% of those words correctly. At least how many
AnnZ [28]

Answer:

He should have to spell at least 36 of these words correctly.

Step-by-step explanation:

40 words.

He must spell at least 90% of those words correctly.

At least how many words should he have to spell correctly to get the prize?

90% of 40. So

0.9*40 = 4*9 = 36

He should have to spell at least 36 of these words correctly.

6 0
3 years ago
20. Determine the following product. 5g(-3g²h - 7g + 9)
soldier1979 [14.2K]
Distribute 5g to all of the terms in parentheses:

5g \times -3g^2h = -15g^3h
5g \times -7g = -35g^2
5g \times 9 = 45g

-15g^3h - 35g^2 + 45g

The answer is A.
4 0
3 years ago
Other questions:
  • PLEASE HELP!!!
    8·1 answer
  • For the orchestra concert, the orchestra director has asked that everyone wear either black pants or a black skirt. Five times a
    7·2 answers
  • What is the value for x when solving the equation <br> −x + (−3) = x + 3 using algebra tiles?
    8·2 answers
  • 4root of 15 plus 3 plus root of 15
    11·2 answers
  • For X a binomial random variable with n=5 and p=1/4, answer the following
    9·1 answer
  • First Identify the Angle relationship, then solve for x.
    13·2 answers
  • Probability help please with questions 1, 2, 3, 4, 5 and 7 please? Thanks in advance! I appreciate your time so much!
    8·1 answer
  • The area of a rectangle is (x4 + 4x3 + 3x2 – 4x – 4), and the length of the rectangle is (x3 + 5x2 + 8x + 4). If area = length ×
    10·2 answers
  • The surface of water can act like a sort os skin due to a property of liquids called
    7·1 answer
  • Do this or your sus<br> 100+100 <br> x3 <br> x3<br> +10<br><br><br> I bet you can not do this one
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!