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3 years ago

2b to the third power +5 when b=3 I need the answer like now pls

Mathematics

2 answers:

olga55 [171]3 years ago

6 0

Answer:

${ \tt{2b {}^{3} + 5}} \\ = { \tt{2 {(3)}^{3} + 5 }} \\ = { \tt{59}}$

sesenic [268]3 years ago

5 0

Answer:

Step-by-step explanation:

We know, b=3

So, 2b³+5

= 2×3³+5

=54+5

=59/ (Ans.)

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An amount of $600 is shared among three people in the ratio 1 : 2 : 3 , find the difference between the smallest and the largest

Oxana [17]

Answer:

200

Step-by-step explanation:

Total amount to be distributed is $600.

Ratio of distribution is 1:2:3

Let the smallest share be x

Then the other shares will be 2x and 3x as per the ratio of distribution.

But sum of all shares is 600.

$=> x+2x+3x=600$

$=> 6x=600$

$=> x=\frac{600}{6}$

$=> x=100$

So the respective shares are 100,200 and 300.

Difference between the largest and smallest share is $300-100 = 200$

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3 years ago

Verify that the given two-parameter family of functions is the general solution of the nonhomogeneous differential equation on t

Yanka [14]

The question is :

2x²y'' + 5xy' + y = x² - x;

y = c1x^(1/2) + c2x^(-1) + 1/15(x^2) - 1/6(x), (0,infinity)

The functions (x^-1/2) and (x^-1) satisfy the differential equation and are linearly independent since W(x^-1/2, x^-1)= ____?____ for 0

Answer:

The functions x^(-1/2) and x^(-1) are linearly independent since their wronskian is (-1/2)x^(-5/2) ≠ 0.

Step-by-step explanation:

Suppose the functions x^(-1/2) and x^(-1) satisfy the differential equation 2x²y'' + 5xy' + y = x² - x;

and are linearly independent, then their wronskian is not zero.

Wronskian of y1 and y2 is given as

W(y1, y2) = y1y2' - y1'y2

Let y1 = x^(-1/2)

y1' = (-1/2)x^(-3/2)

Let y2 = x^(-1)

y2' = -x^(-2)

W(y1, y2) =

x^(-1/2)(-x^(-2)) - (-1/2)x^(-3/2)x^(-1)

= -x^(-5/2) + (1/2)(x^(-5/2)

= (-1/2)x^(-5/2)

So, W(y1, y2) = (-1/2)x^(-5/2) ≠ 0

Which means the functions are linearly independent.

3 0

3 years ago

What is the answer to this question

eduard

Answer:

a. 80g fish

b. 200g butter

Step-by-step explanation:

a. you have to divide it by 3 because 2 is 1/3 of 6 so 240/3 = 80g of fish.

b. multiply by 2.5 because 15 is 2.5 times 6 so 80*2.5=200g of butter.

4 0

3 years ago

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The chairlift at a ski resort rises a total of 2600 feet from where it starts. The angle of elevation is about 22.3 degrees. How

Monica [59]

Answer:

6852 feet .

Step-by-step explanation:

Refer the attached figure

The chairlift at a ski resort rises a total of 2600 feet from where it starts. i.e.AB = 2600 feet

The angle of elevation is about 22.3 degrees.i.e.∠ACB= 22.3°

We are supposed to find How far do riders travel on the lift i.e.AC

In ΔABC

We will use trigonometric ratio

$Sin\theta =\frac{Perpendicular}{Hypotenuse}$

$Sin22.3^{\circ} =\frac{AB}{AC}$

$AC=\frac{2600}{Sin22.3^{\circ}}$

$AC=\frac{2600}{0.379456159529}$

$AC=6851.9$

So, riders travel 6852 feet .

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3 years ago

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HELLLP ME PLEASE ❤️ which one do you think it is?

Arte-miy333 [17]

3/7 for sure hope this helps

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3 years ago

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