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
zvonat [6]
3 years ago
14

Lucy wants to hang 5 photos on her

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0

Answer:

7

Step-by-step explanation:

You might be interested in
Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2
r-ruslan [8.4K]

Answer:

The value of given expression is \frac{21}{128}.

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

q=1-p=1-\frac{1}{2}=\frac{1}{2}

The given expression is

C(n,x)p^xq^{n-x}

It can be written as

^nC_xp^xq^{n-x}

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}

\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}

\frac{7!}{2!5!}(\frac{1}{2})^{2+5}

\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}

21(\frac{1}{2})^{7}

\frac{21}{128}

Therefore the value of given expression is \frac{21}{128}.

7 0
3 years ago
Solve the system of equations.<br> 5y – 4c = -7<br> 2y + 4x = 14
Lesechka [4]

c=\frac{5y}{4\\} + \frac{7}{4\\}

x=-\frac{y}{2} + \frac{7}{2}

Step-by-step explanation:

if 'c' is meant to be another 'x' the answer is

(3, 1)

x = 3,y = 1

4 0
3 years ago
If $12000 is invested in an account in which the interest earned is continuously compounded at a rate of 2.5%
vladimir1956 [14]

Complete Question

If $12000 is invested in an account in which the interest earned is continuously compounded at a rate of 2.5% for 3 years

Answer:

$ 12,934.61

Step-by-step explanation:

The formula for Compound Interest Compounded continuously is given as:

A = Pe^rt

A = Amount after t years

r = Interest rate = 2.5%

t = Time after t years = 3

P = Principal = Initial amount invested = $12,000

First, convert R percent to r a decimal

r = R/100

r = 2.5%/100

r = 0.025 per year,

Then, solve our equation for A

A = Pe^rt

A = 12,000 × e^(0.025 × 3)

A = $ 12,934.61

The total amount from compound interest on an original principal of $12,000.00 at a rate of 2.5% per year compounded continuously over 3 years is $ 12,934.61.

7 0
2 years ago
Dummy forgot his pin code. 20% of his pin code was 246.8 what was dummy pin code?
eduard
The dummies pin code would be 49.36.
8 0
3 years ago
What number must each side of the equation
zysi [14]
<span>1. What number must multiply each side of the equation 2/5 x=10 to produce the equivalent equation x = 25? 4 5 5/2 1/5 2. Solve. -1/3 x=12 4 –36 –1/4 –4 3.Solve. 3|s| = 18 s = –6 or s = 6 s = 6 only s = –18 or s = 18 s = –6 only 4.Solve. x + 4 – 7x =...</span> show more Best Answer:<span>  </span><span>C 
</span><span>
</span>
7 0
3 years ago
Other questions:
  • Which table represents a linear function ?
    14·1 answer
  • Complete the following sentences.Mark is rolling a number cube with sides labeled 1 through 6 and is looking for the probability
    9·1 answer
  • Emilio used addition of two rational numbers to solve a problem. Jim use subtraction to solve the problem. Is it possible that t
    13·1 answer
  • A triangle has a perimeter of 49 centimeters. each of the two longer sides of the triangle is three times as long as the shortes
    8·1 answer
  • in a survey 8 out of 32 students preferred vanilla ice cream if 252 students are surveyed how many should theoretically prefer v
    8·1 answer
  • A cone-shaped kitchen funnel has a diameter of 6 inches and a height of 7 inches. about how many times would you need to fill th
    9·2 answers
  • Help with the above graph
    14·1 answer
  • What is the quotient of 15,048 and 76​
    11·1 answer
  • What is the volume of the following rectangular prism?
    12·1 answer
  • We do #1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!