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navik [9.2K]
3 years ago
13

Diameter is 22.5m. Calculate the area (round your answer to 2 decimal places), Use 3.14 for Pi​

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

397.61m

Step-by-step explanation:

A = 1

4πd^2 = 1

4 x π x 22.52 = 397.60782

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Find the period of the function. y=3 sin x/8
Alexus [3.1K]

Answer:

The period of given function is  Period = 16\pi

So, Option B is correct.

Step-by-step explanation:

In this question we need to find the period of the function y= 3 sin x/8

The formula used to find period of function is: \frac{2\pi }{b}

We need to know the value of b.

To find the value of b we compare the standard equation with the equation of function given.

Standard Equation: y = a sin(bx - c) +d

Given Equation: y= 3 sin(x/8)

Comparing we get:

a= 3

b= 1/8

c= 0

d=0

So, we get the value of b i.e 1/8. Putting it in the formula to find period of given function.

Period = \frac{2\pi }{b}

Period = \frac{2\pi }{\frac{1}{8}}

Solving,

Period = 2\pi *8

Period = 16\pi

So, the period of given function is  Period = 16\pi

5 0
3 years ago
Please help!
aev [14]

Answer:

c

Step-by-step explanation:

cvvvbbnh

5 0
3 years ago
X to the 5th times x to the 7a​
Leya [2.2K]

Answer:

(x^5)(x^7)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Assume that the wavelengths of photosynthetically active radiations (PAR) are uniformly distributed at integer nanometers in the
trasher [3.6K]

Answer:

Mean=685

Variance=36.7

Step-by-step explanation:

The mean of uniform discrete distribution can be expressed as the average of the boundaries

mean=( b+a)/2

The variance of uniform discrete distribution can be expressed as the difference of the boundaries decreased by 1 and squared, decreased by 1 and divided by 12.

σ²=[(b-a+1)^2 - 1]/12

We were given the wavelength from from 675 to 695 nm which means

a= 675, b= 695

We can now calculate the mean by using the expresion below

mean=( b+a)/2

Mean=( 675 + 695)/2

=685

The variance can be calculated by using the expression below

σ²=[(b-a+1)^2 - 1]/12

σ²=[(695-675+1)^2 -1]/12

σ²=440/12

σ²=36.7

Therefore, the the mean and variance, of the wavelength distribution for this radiation are 685 and 36.7 respectively

7 0
3 years ago
The binomial (2x3 + 3y2)7 is shown in expanded form, but elements of several terms are missing. To complete the expansion, drag
svlad2 [7]

{(2x^{3}  + 3x^{2} )}^{7}
EXPANDED: VERY LONG

128x^{21} +1344x^{18} y^{2} +6048x^{15} y^{4} +15120x^{12} y^{6} +22680x^{9} y^{8} +20412x^{6} y^{10} +10206x^{3} y^{12} +2187y^{14}

I used the Binomial Theorem, Which States
(a + b)(a + b)= {a}^{2} + 2ab  + {b}^{2}   \\
({a}^{2} + 2ab  + {b}^{2} )(a + b)={a}^{3} + 3 {a}^{2} b   + 3a {b}^{2} + {b}^{3}
({a}^{3} + 3 {a}^{2} b   + 3a {b}^{2} + {b}^{3}) \times (a + b) = i \: believe \: you \: get \: the \: pattern \: now
8 0
3 years ago
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