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max2010maxim [7]
3 years ago
15

You have a cylinder and you want to double its volume. Should you double it’s radius or its height, or could you do either? why

or why not?
Mathematics
1 answer:
Marat540 [252]3 years ago
7 0

Answer: I should its height. I cannot do either, because if I double the radius, the Volume will quadruplicate.

Step-by-step explanation: the volume of a cylinder is

V = Ab.h = πr².h

Double h

V₁ = πr².2h = 2πr².h = 2V

Double r

V₂ = π(2r)².h = π4r².h = 4πr².h = 4V

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When you write a number that is less than 1 in scientific notation how does the power of 10 differ from when you write a number
Irina18 [472]

When you write a number that is less than 1 in scientific notation how does the power of 10 differ from when you write a number greater than 1 in scientific notation?​

Answer : In scientific notation all numbers are written in the form m × 10ⁿ. If the number is less than 1, ten is raised to a negative power, so : m × 10⁻ⁿ.​

Example : a decimal number less than 1 is 0.02 = 2 x 10⁻² in scientific notation.

​Hope this helps!​​​​

\textit{\textbf{Spymore}}​​​​​​​

3 0
4 years ago
GIVING BRAIN Which statement best describes a physical change?
o-na [289]

Answer:

Changes can occur to physical properties of a substance,but the chemical composition of the substance remains the same.

<u><em> HOPE IT MAKES YOUR DAY BETTER!!</em></u>

3 0
4 years ago
HELP FAST !!!!!!!!!!!!!!!!!!
enyata [817]

Suppose a museum has a rectangular painting that measures 36 inches by 48 inches.

Length of the rectangle = 36 inches

width of the rectangle = 48 inches

Area of the rectangle = length * width

we replace length and width and calculate area

Area of the rectangle = 36 * 48= 1,728

Area of the rectangle= 1,728 square inches



5 0
3 years ago
The measure of angle zero is 600°. The point XY corresponding to zero on the unit circle is
Andrej [43]

<u>Answer:</u>

x= -\frac{1}{2}\\\\ y= -\frac{\sqrt{3}}{2}

<u>Step-by-step explanation:</u>

We are given that the measure of angle θ is 600° and we are to fin the point (x, y) corresponding to angle θ on the unit circle,

We know that the x,y coordinates in the unit circle are the cosine and sine ratios, respectively.

θ = 600

1 unit circle= 360°

It means that 600° corresponds to 600° - 360° = 240°.

So, θ =  360° + 240°

180° < 240° < 270° (this tells that the point is in the third quadrant and its coordinates are negative)

240° - 180° = 60° (using the supplementary angles to find the sin and cos)\sin 60^\circ = \frac{\sqrt{3}}{2}\\\\\cos 60^\circ= \frac{1}{2}

Therefore, the x-coordinate is the cos of the given angle while y-coordinate is the sine of the given angle and the coordinates are:

x= -\frac{1}{2}\\\\ y= -\frac{\sqrt{3}}{2}

3 0
3 years ago
At 9:00 pm bob leaves his home and starts walking to the bus stop at a constant speed of 9.3 feet per second. bob's house is 432
klio [65]
a. define variables for the quantities that are changing (be specific).
 We define variables:
 t = time in second
 d = distance traveled
 The variables that are changing are t and d.
 As the time increases, the distance decreases.

 b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
 It means that for every second that passes, Bob walks 9.3 feet.

 c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent? 
 For this case we have:
 t = represents the time in seconds
 9.3t = represents the distance traveled by Bob
 d = represents the distance Bob must travel to get to the bus stop.
5 0
3 years ago
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