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TEA [102]
3 years ago
8

Doug entered a canoe race

Mathematics
1 answer:
kenny6666 [7]3 years ago
7 0

Answer:

he can row 2 miles in an hour

Step-by-step explanation:

When canoeing it takes about 20-30 minutes to row atleast 1 hour there are 2 sets of 30 minutes in an hour meaning he can row 2 miles

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In the number 340.79 , the 0 is in what place
kirill115 [55]

Answer:

units

Step-by-step explanation:

The zero (0) is in the units place.  unit = 1

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value if x is -21.25.

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The diameter of a circle is 20 centimeters. What is the circumference?
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C ≈ 62.83cm is the answer!

Hope this helps!

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\large \frac{h}{-5}-12=-7<br><br> h = <br><br> please answer asap
Romashka-Z-Leto [24]

Answer:

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Step-by-step explanation:

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3 years ago
Aimee is shipping a care package to her friend in college, and she has a piece of cardboard with which to create a box. The dime
kow [346]

Answer:

x = 10 - 10sqrt(3)/3

Approximately 4.2265 cm

Volume = 1539.6 cm³

Step-by-step explanation:

Let the height be x

V = (20 - 2x)(40 - 2x)x

V = (800 - 80x - 40x + 4x²)x

V = 4x³ - 120x² + 800x

dV/dx= 12x² - 240x + 800 = 0

3x² - 60x + 200 = 0

x = [60 +/- sqrt(60² - 4(3)(200))]/6

x = [30 +/- 10sqrt(3)]/3

x = 10 +/- 10sqrt(3)/3

Approximately,

15.7735 and 4.2265

d²V/dx² = 24x - 240

For max, d²V/dx² < 0

So, x = 4.2265

V = (20 - 2x)(40 - 2x)x

Plug in x = 10 - 10sqrt(3)/3

V = 1539.600718

8 0
3 years ago
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