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dusya [7]
3 years ago
10

Evaluate 2xy when x=-1/4and y=3

Mathematics
1 answer:
Yanka [14]3 years ago
7 0

Answer:

see above

.............

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An angle measures 19.4° more than the measure of its complementary angle. What is the measure of each angle?
8090 [49]

Answer:

37.8+52.2=90

Step-by-step explanation: x + (x + 14.4) = 90

2x + 14.4 = 90

2x = 75.6

x = 37.8  (one angle)

And (x + 14.4) = 52.2 (other angle).

7 0
3 years ago
Translate the word phrase 2 less than 4 times a number into an algebra expression
Gala2k [10]

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Extending answer to be able to send.

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Please help with question 76 PLEASE IDONT UNDERSTAND and I have a 100 questions to do please
Alex

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what you need help with my man

Step-by-step explanation:

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The rear wheel of a lawn tractor has a 20-inch radius. Find the angle (in radians) through which a wheel rotates in 23 seconds i
Minchanka [31]

Answer:

263.12 radians

Step-by-step explanation:

The length of the rear wheel is given by:

L=2\pi r\\L=40\pi

The distance traveled by the lawn tractor in 23 seconds is:

d=13\frac{miles}{hour} *63360\frac{inch}{miles}*\frac{1\ hour}{3600\ seconds}*23\ seconds\\ d=5,262.4\ inches

The angle through which a wheel rotates is given by:

A=\frac{d}{L}*2\pi \\A=\frac{5,262.4}{40\pi}*2\pi\\A=263.12\ radians

The wheel rotates through a 263.12 radians angle.

8 0
3 years ago
Artrel thinks of a number between 1 and 20
OLEGan [10]
Could be 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19
3 0
3 years ago
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