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
LUCKY_DIMON [66]
3 years ago
6

Help me with question 21 to get brainliest

Mathematics
1 answer:
Andrej [43]3 years ago
6 0

Step-by-step explanation:

We can call the original value x. In 2012, the painting's value was 1.05 x. In the beginning of 2013, the value was (1.05 x) * 0.98, and that increased to (1.05x) * 0.98 * 1.40 at the end of 2013. When we simplify, we get 1.4406 x as a value, and we know that this is equal to $52,640. We can write 1.4406x = 52640, and when we solve for x, we get x ≈ $36415.38. Hope this helps!

You might be interested in
Please help me with this soon much appreciated.
NeX [460]

Answer:

1 : 2

Step-by-step explanation:

this is a 30-60-90 triangle which is a special right triangle. the ratio of the sides is x: x*sqrt(3): 2x, in the order short leg: long leg: hypotenuse. so the ratio of the short leg to the hypotenuse is x:2x or 1:2

8 0
2 years ago
7/5 mile / 2/3 hour worked out please
Elenna [48]

Steps to solve:

7/5 ÷ 2/3

~Dot

7/5 * 2/3

~Flip

7/5 * 3/2

~Multiply

21/10

Best of Luck!

3 0
3 years ago
Read 2 more answers
A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey
Lubov Fominskaja [6]

Answer:

Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779

And the deviation would be:

Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54

Step-by-step explanation:

For this case we have the following distribution given:

X        0         1       2       3       4         5        6

P(X)  0.3   0.25   0.2   0.12   0.07   0.04   0.02

For this case we need to find first the expected value given by:

E(X) = \sum_{i=1}^n X_i P(X_I)

And replacing we got:

E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61

Now we can find the second moment given by:

E(X^2) =\sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97

And the variance would be given by:

Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779

And the deviation would be:

Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54

 

8 0
3 years ago
At a​ cookout, Mrs. Crawford makes
dedylja [7]

Answer:

I love cookouts I eat chicken nuggets and chicken yummy so delicious

7 0
2 years ago
Round your answer to the nearest whole. use Pie as 3.14
sladkih [1.3K]
To find the volume of a cylinder you must use the formula:


πr^2h

1) Plug in your variables
π(3)^2•(11)

2) Solve
~ 311.01 cm^3
3 0
3 years ago
Other questions:
  • A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of us
    9·2 answers
  • Factor <br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20x%20-%206" id="TexFormula1" title=" {x}^{2} + x -
    6·1 answer
  • What is the solution to this equation?
    9·2 answers
  • Simplify 3a(- 3a+4)- 4(3-2)
    8·1 answer
  • An art gallery sells paintings at 0.35 per square inch. if a painting is 2 feet 3 inches by 3 feet 5 inches. how much would the
    9·1 answer
  • At a coffee shop, the first 100 customers’ orders were as follows
    9·1 answer
  • What is the slope of the line that passes through the points (-6, 4) and (-6, 8)?
    8·1 answer
  • A boy wants to jump onto a carousel that is spinning at a rate of 14 revolutions per minute. If the carousel is 23 feet in diamt
    13·1 answer
  • Find the difference 9 1/9 and 5 2/3
    9·1 answer
  • Plot and connect the points A(-4,2), B(4,2), C(4,-2), and D(-4,-2). Then, find the perimeter of rectangle ABCD.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!