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2 years ago

The volume of one cup of water is 0.000236 cubic meters. Use scientific notation to represent the volume of one cup of water.

2 answers:

5 0

To work scientific notation - write the original number as a whole number and a decimal, i.e., 2.36 then show the number of places you moved the decimal by 10^-4. The answer is:

2.36 x 10^-4

Lelu [443]2 years ago

3 0

You just move the decimal so it would be 236

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In which quadrant does the terminal side of the angle 215° lie?

Ivan

1. You got it right.

4π/9 x 180/π = 80°

2. To get a coterminal angle you start with your angle and then you add or subtract 360° (one cycle around the circle).

-123+360+360 = 597°

-123-360 = -483°

3. The angle is 215° from the point (1,0) on the unit circle. The angle 215° is between 180° and 270° so it is in quadrant 3.

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2 years ago

A pound of blueberries costs $3.98 and a pound of clementines costs $2.49. What is the combined cost of 0.6 pound of blueberries

FromTheMoon [43]

See https://web2.0calc.com/questions/i-need-help_24437.

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3 years ago

The library has 27 chairs and 5 tables. If the same number of chairs is placed at each tables, how many chairs can be placed eac

Alik [6]

Answer:5

Step-by-step explanation:

27 chairs

5 tables

27/5

=5.4

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2 years ago

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bogdanovich [222]

Answer:

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2 years ago

Read 2 more answers

What is the solution to he equation (y/y-4)-(4/y+4)=3^2/y^2-16

kicyunya [14]

Answer:

$y=\pm i \sqrt{7}$

Step-by-step explanation:

Given equation is $\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

Factor denominators then solve by making denominators equal

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{3^2}{(y^2-16)}$

$\frac{y}{\left(y-4\right)}-\frac{4}{\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$\frac{y\left(y+4\right)-4\left(y-4\right)}{\left(y-4\right)\left(y+4\right)}=\frac{9}{(y+4)\left(y-4\right)}$

$y\left(y+4\right)-4\left(y-4\right)=9$

$y^2+4y-4y+16=9$

$y^2=9-16$

$y^2=-7$

take squar root of both sides

$y=\pm \sqrt{-7}$

$y=\pm i \sqrt{7}$

Hence final answer is $y=\pm i \sqrt{7}$ .

7 0

3 years ago