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Jobisdone [24]
3 years ago
12

A rectangle has an area of 10 square feet. What could its perimeter be?

Mathematics
1 answer:
valentina_108 [34]3 years ago
6 0
Do you know what the length and width is?
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At noon, ship a is 30 nautical miles due west of ship
Dmitry_Shevchenko [17]
Let the origin of the coordinate system be the position of ship B at noon. Then the distance between the ships as a function of t (in hours) is
.. d = √((30 +23t)² +(17t)²)
.. = √(818t² +1380t +900)

The rate of change of distance with respect to time is
.. d' = (1/2)(2*818*t +1380)/√(818t² +1380t +900)
.. = (818t +690)/√(818t² +1380t +900)

At t=4, this is
.. d' = (818*4 +690)/√(818*16 +1380*4 +900)
.. = 3962/√19508
.. ≈ 28.37 . . . . . knots

The distance between the ships is increasing at about 28.37 knots at 4 pm.

8 0
3 years ago
Can I get help with this? Easy points!
givi [52]

9514 1404 393

Answer:

  • maximum: 0
  • minimum: -16

Step-by-step explanation:

A graphing calculator can quickly show you the boundaries of the feasible region, and can calculate the values of the objective function.

3 0
2 years ago
ASAP can somebody please tell me the steps for both problems, I will also give brainliest (please list all the steps i have to s
bija089 [108]

The answer to #11 is: x = 15

The answer to #12 is: x = 5

4 0
2 years ago
At the beg ending of 2009 Marilyn invested $5000 in a savings account account pays 4% interest per year at the end of the year a
pychu [463]

Answer:Use the given functions to set up and simplify

y

e

a

r

.

2009

=

5000

=

4

%

=

0.04

y

e

a

r

=

0.04

y

e

a

r

=

0.04

Step-by-step explanation:

I Think

6 0
3 years ago
When we multiply or divide an inequality by a negative we......
Gnom [1K]

Stepby-step explanation:

There is one very important exception to the rule that multiplying or dividing an inequality is the same as multiplying or dividing an equation. Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign.

8 0
3 years ago
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