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3 years ago

Pls help!!! Will mark brainliest!! links will be reported.

Mathematics

1 answer:

Ad libitum [116K]3 years ago

3 0

I hope this is the right answer and if it's not then my apologies.

And sorry it took so long.

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Can you conclude that this parallelogram is a rectangle? Explain.

tino4ka555 [31]

Answer:

The answer is B.

Step-by-step explanation:

All parallelograms that have congruent diagonals are rectangles.

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3 years ago

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the total cost to rent a pontoon boat for h hours can be represented by the expression 30h+65. if brianna can spend a maxium of

Fed [463]

Answer:

4 hours

Step-by-step explanation:

30(4)+65= 185

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4 years ago

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Belinda is making doughnuts. If the recipe calls for 2 cups of sugar, and each cup of sugar weighs 2/3 pounds, how many pounds o

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Answer:

1 1/3

Step-by-step explanation:

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4 years ago

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A cone has a diameter of 3 inches. The cone holds 12 cubic inches of water.

dmitriy555 [2]

Answer:

The height of the cone is 5.09 inches

Step-by-step explanation:

Given:

The volume of the cone = 12 cubic inches

The diameter of the cone = 3 inches

To Find :

The height of the cone = ?

Solution:

We know that the volume of the cone is

Volume = $\pi r^2\frac{h}{3}$

where

r is the radius of the cone

h is the height of the cone

Now substituting the given values

$12 = \pi (1.5)^2 \frac{ h }{3}$

$\frac{12}{\pi 2.25} = \frac{h}{3}$

$h = \frac{12}{ 2.25 \pi} \times 3$

$h = \frac{ 12}{7.065} \times 3$

$h = 1.698 \times 3$

h = 5.09 inches

6 0

3 years ago

Find the extremum of f(x,y) subject to the given constraint, and state whether it is a maximum or a minimum. f(x,y)=xy; 6x y=10

Pepsi [2]

There is a maximum value of 7/6 located at (x, y) = (5/6, 7).

The function given to us is f(x, y) = xy.

The constraint given to us is 6x + y = 10.

Rearranging the constraint, we get:

6x + y = 10,

or, y = 10 - 6x.

Substituting this in the function, we get:

f(x, y) = xy,

or, f(x) = x(10 - 6x) = 10x - 6x².

To find the extremum, we differentiate this, with respect to x, and equate that to 0.

f'(x) = 10 - 12x ... (i)

Equating to 0, we get:

10 - 12x = 0,

or, 12x = 10,

or, x = 5/6.

Differentiating (i), with respect to x again, we get:

f''(x) = -12, which is less than 0, showing f(x) is maximum at x = 5/6.

The value of y, when x = 5/6 is,

y = 12 - 6x,

or, y = 12 - 6*(5/6) = 7.

The value of f(x, y) when (x, y) = (5/6, 7) is,

f(x, y) = xy,

or, f(x, y) = (5/6)*7 = 7/6.

Thus, there is a maximum value of 7/6 located at (x, y) = (5/6, 7).

Learn more about maximum and minimum at

brainly.com/question/2437551

#SPJ4

7 0

2 years ago