3 years ago

If a fish swims 7/8 of the depth of 32 foot deep lake, how many feet down did the fish swim?

Mathematics

1 answer:

erastova [34]3 years ago

4 0

The answer is 8÷32 4 4×7 28

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Mila [183]

Answer:

2/-5

Step-by-step explanation:

(-2) - (-4) = 2

(-6) - (-1) = -5

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2 years ago

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Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

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Hence, option A is true.

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3 years ago

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At time t=0, water begins to drip out of a pipe into an empty bucket. After 56 minutes, 8 inches of water is in the bucket. what

Sergio [31]

Answer:

W = (1/7) t

Step-by-step explanation:

At t = 0, W = 0

At t = 56 minutes , W = 8 inches

W = k*t The y intercept = 0 because t = 0 W = 0

8 inches = k * 56 minutes

k = 8 / 56

k = 1/7 inches / minute

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Answer:

A town with 600 people need 10 firefighters

A town with 1500 people will need 1500 x 10/600 = 1500/60

= 25 firefighters

Hope this helps!

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3 years ago

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nikitadnepr [17]

Answer:

B is the answer

Step-by-step explanation:

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