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Harrizon [31]
2 years ago
6

What is 221000000000000000000 expressed in scientific notation

Mathematics
2 answers:
alexgriva [62]2 years ago
5 0

Answer:

2,21 * 10^20

Step-by-step explanation:

yan [13]2 years ago
3 0

Answer: 2.21  times 10^18

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Please help.....no one would help me so PLZZZZ
Anvisha [2.4K]

Answer:

Step-by-step explanation:

a) r = 10/2 = 5 feet

Area of floor =πr² =3.14*5*5 = 78.5 feet²

B) h = 3 foot

Volume of cylinder = πr²h = 3.14*5*5*3 = 235.5 cubic feet

Volume of hemisphere =2/3πr³= 2*3.14*5*5*5/3=261.67 cubic feet

Volume of space inside the observatory = 497.17 cubic feet

7 0
3 years ago
Using the slope and the y-intercept, graph the line represented by the following equation. Then select the correct graph. 3y = 2
Over [174]
First, let's write the given equation in slope-intercept form: y = mx + b

In slope-intercept form, the slope of the line is m, and the y-intercept is b. The slope is a measure of how steep the graph is at any point and is found by doing rise over run. This means the change in y values divided by the change in x values. Next, y-intercept is just where the graph crosses the y axis.

All we need to do to get the equation in slope-intercept form is to divide each term by 3. This will isolate the y.

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

As you can see, the slope of the line is 2/3, and the y-intercept is -2.

To graph the line, plot a point at (0,-2). This is the point where the graph crosses the y axis. Then from that point, count up two and right 3. Plot a point here as well. Lastly, connect the two points with a straight line.

See attached picture for the graph.

5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%7B2x%7D%5E%7B2%7D%20%20-%205x%20%2B%203" id="TexFormula1" title=" {2x}^{2} - 5x + 3" alt=
alexdok [17]
There’s the link to this answer
8 0
3 years ago
A line parallel to the line 3x+4y+8=0 with y-intercept 4
Vitek1552 [10]
3x + 4y + 8 = 0
4y = -3x - 8
y = -3/4x - 2....slope here is -3/4. A parallel line will have the same slope.

y = mx + b
slope(m) = -3/4
y int (b) = 4

so ur equation is : y = -3/4x + 4
6 0
3 years ago
Read 2 more answers
What would the value of y be for a point at<br> x = 8?
Tems11 [23]

Answer:

11

Step-by-step explanation:

4 0
2 years ago
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