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3 years ago

What is 89.2 ft=? inch

Mathematics

1 answer:

Fynjy0 [20]3 years ago

5 0

Because 1 ft. = 12 in. Multiply by 12.

12 * 89.2 = <span>1070.4</span>

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2 i A rectangular swimming pool has a length of L yards and a width 4 yards less than its length. How much does it cost to borde

Vedmedyk [2.9K]

Step-by-step explanation:

w= L-4

$(24L-48)

......

8 0

3 years ago

a motorboat travels 371 kilometers in 7 hours going upstream. it travels 525 kilometers going downstream in the same amount of t

e-lub [12.9K]

Answer:

Speed of boat in still water = 64 km/hr

Speed of the current = 11 km/hr

Step-by-step explanation:

Let the speed of motorboat in still water = x km/hr

Let the speed of current = y km/hr

Motorboat travels 371 km in 7 hours going upstream.

Speed of motorboat while going upstream = speed of motorboat in still water - speed of current = (x-y)

=> $x-y = \frac{371}{7}$

=> $x-y = 53$ ------------------------------(1)

Motorboat travels 525 km in 7 hours going downstream.

Speed of motorboat while going downstream = speed of motorboat in still water + speed of current = (x+y)

=> $x+y = \frac{525}{7}$

=> $x+y = 75$ -----------------------------(2)

Solving for x and y from (1) and (2):

Adding (1) and (2):

2x = 128

=> x = 64

Substituting the value of x in (1), y = 11

6 0

3 years ago

Simplify 3(5 + 2)² – 412 - 6)

svetoff [14.1K]

Answer:

-271

Step-by-step explanation:

4 0

3 years ago

Easy question

Leviafan [203]

$\dfrac{\mathrm dy}{\mathrm dt}=ky\iff\dfrac{\mathrm dy}y=k\,\mathrm dt$

Integrating both sides, we get

$\ln|y|=kt+C$
$\implies y=e^{kt+C}=e^{kt}e^C=Ce^{kt}$

When $t=0$ , we have $y=10000$ , so that

$10000=Ce^{0k}\implies C=10000$

When $t=4$ , we have $y=8000$ , which means

$8000=10000e^{4k}\implies k=\dfrac14\ln\dfrac{8000}{10000}\approx-0.0558$

5 0

3 years ago

Plz lzplz plz plz plz help me plz ASAP

mixer [17]

Answer:

One of the answers are a negative number.

Step-by-step explanation:

A) Look at how the negatives are compared to the others

B) The negatives goes to the left since it's decreasing

C) Although they're the same numbers but that minus sign in front of a number is representing a decreasing number. The other numbers on the right are positive which means it's increasing.

I learned it this way, but I hope this helps you. Good Luck

6 0

3 years ago