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
Alenkinab [10]
2 years ago
6

Assume the mean life of an iPhone is 5 years (60 months)and a standard deviation of 8 months If the age in years at which an iPh

one is replaced is approximately normally distributed, what is the probability that the phone will need to be replaced between 60-75 months? A 47% B 82% C 54% D 68%​
Mathematics
1 answer:
melamori03 [73]2 years ago
8 0

Answer:

Answer:

safe speed for the larger radius track u= √2 v

Explanation:

The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.

Also given that r_1= smaller radius

r_2= larger radius curve

r_2= 2r_1..............i

let u be the speed of larger radius curve

now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=

r

1

mv

2

=

r

2

mu

2

................ii

form i and ii we can write

v^2= \frac{1}{2} u^2v

2

=

2

1

u

2

⇒u= √2 v

therefore, safe speed for the larger radius track u= √2 v

You might be interested in
A bakery sold a total of 400 cupcakes in a day, and 43% of them were vanilla flavored. how many of the cupcakes sold that day we
garik1379 [7]

The number of the cupcakes sold that day that were vanilla flavored is 172.

<h3>How do we calculate a number from a percentage?</h3>

The number of the cupcakes sold that day that were vanilla flavored can be calculated using the following formula:

Number of vanilla flavored cupcakes sold = Total number of cupcakes sold * Percentage that were vanilla flavored .............. (1)

Substituting the relevant values into equation (1), we have:

Number of vanilla flavored cupcakes sold = 400 * 43% = 172

Learn more about percentages here: brainly.com/question/14801224.

#SPJ1

7 0
2 years ago
A pharmacist whose salary became $640 a week had
irinina [24]
640 x 0.30= 192

640-192= 448

448 is the answer
4 0
3 years ago
Read 2 more answers
Plz help me well mark brainliest if you are correct!!.....
emmainna [20.7K]

Step-by-step explanation:

the base is 5unit and the height is 9unit

8 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLET<br><br> 5/6 + 7 1/3
Tems11 [23]

Answer:

It would be 8 1/6 im 90% sure

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which following statements are false
denpristay [2]
A) Vertical angles are congruent: It is true. Vertical angles are called opposite angles, so they are congruent. B) Angles with measures between 0- 90 degrees are complementary: It is false. Complementary angles are angles that the sum of their value is 90° C) Straight angles are complementary: it is false. Straight angles are angles which value is 180°. D) Angles with measure between 90 and 180 degrees are obtuse. This statement is true by definition <span>
</span>
3 0
3 years ago
Other questions:
  • Suppose these statements are true:
    9·2 answers
  • What decimal is equivalent to 8/100
    8·2 answers
  • Please help - and explain
    14·1 answer
  • (2 4/10+8 4/5)-3 1/5 equals what whole number
    11·2 answers
  • Solve X^2 + 5x + 6 = 0
    10·2 answers
  • What is the solution of the system of equations shown in the graph below?
    12·2 answers
  • Joanna went school supply shopping. She spent $33.33 on notebooks and pencils. Notebooks cost
    15·1 answer
  • Help please I am not the brightest.
    11·1 answer
  • What are some ways on how you can improve your skills in conversion with the use of technology?
    8·1 answer
  • Help with this please!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!