3 years ago

An undersea explorer descends from the surface at a rate of 36 feet per minute.

Mathematics

1 answer:

Volgvan3 years ago

6 0

Answer:

-144 feet from the surface in 4 minutes

Step-by-step explanation:

-36 x 4

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A Japanese garden has a circular koi pond in the middle that has a radius of 3 feet. A rectangle with length of 16 feet and widt

Mariulka [41]

Answer:

first, find the area of the circle cut.

r= 3 feet

π=3.14

area of a circle= πr²= 3.14×3×3= 28.26 sq.feet

Now, find the area of the rectangle and subtract it by the area of the circle.

area of rectangle = l×b

length of the rectangle= 16 feet

breadth/width of the rectangular garden= 14 feet

area= 16×14= 224 sq. feet

now, area of the garden surrounding the koi pond= 224-28.26

=195.74 sq. feet

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3 years ago

Find the parametric equations for the line that is tangent to the given curve at the given parameter (3cost)i (t^4 -3sint)j

ale4655 [162]

Answer:

Following are the solution to this question:

Step-by-step explanation:

Please find the complete question in the attached file.

In the given equation, when the point t=0

So,

$\to r(0) = (3 \cos 0)i + (0^4 - 6 \sin 0)j + (2e^{3\times 0})k)$

$= (3 \times 1)i + (0 - 0)j + (2e^{0})k)\\\\ = 3i + 0j + (2 \times 1)k)\\\\ = 3i + 0j + 2k \\$

The value of the coordinates are $3, 0, 2$ . so, the equation of the line is:

$\to \frac{(x-3)}{3 \cos \ t} = \frac{(y-0)}{(t^{4}-6 \sin \ t)} = \frac{(z-2)}{2e^{3t}}=k$

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3 years ago

Plz help 7x^2 - 6(x + 3)

max2010maxim [7]

Answer:

7x² - 6x - 18

Step-by-step explanation:

7x² - 6(x + 3)

multiply with -6

7x² - 6x - (6 × 3)

evaluate

= <u>7x² - 6x - 18</u>

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2 years ago

Remainder of 42325/47=

m_a_m_a [10]

The answer is 900 r25

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3 years ago

Is 81 divisible by 3?

AlexFokin [52]

Yes 81 is divisible by 3
the answer is 27
because 81 divided by 3 = 27

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3 years ago

Read 2 more answers