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aliina [53]
3 years ago
6

Perform the following operation and express the answer in scientific notation. 3.8×10^-5 ÷ 8.1×10^3​

Mathematics
1 answer:
Rudiy273 years ago
4 0

Answer:

4.7*10^{-9}

Step-by-step explanation:

\frac{3.8*10^{-5} }{8.1*10^{3} } =\frac{380*10^{-7} }{81*10^{2} } =\frac{380}{81}*\frac{10^{-7} }{10^{2} } =4.7*10^{-9}

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Alisiya [41]

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Step-by-step explanation:

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Simplify, and write your answer as a numeral:<br><br> ( The problem is in the picture I attached )
Vika [28.1K]

Answer:

45

Step-by-step explanation:

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6 0
3 years ago
What is the focus of the parabola?<br><br> y=−14x2−2x−2
nataly862011 [7]
First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
Using completing the square method:

y = -14x² - 2x - 2
y = -14(x² + 2x/14) - 2
y = -14(x² + 2x/14 + (2/28)²) -2 + (2/28)²
y = -14(x + 1/14)² - 391/196
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This is a vertical parabola and its focus <span>(h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

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3 0
3 years ago
Answers plz i cant do math
Licemer1 [7]

The slope of all parallel lines are equal.

The slope of a line in the form y=mx+c is m.

1. The given equation is: y=4x+2.  The slope of this line is m=4. The slope of the line parallel to this line is also 4.

2. The given equation is y=\frac{2}{7}x+1. The slope of this line is m=\frac{2}{7}.

The slope of the line parallel to it is also \frac{2}{7}.

3. The next equation is y+9x=13. The slope intercept form is y=-9x+13.

The slope of this is m=-13. The line parallel to it also has slope which is -13.

4. The given equation is y=-\frac{1}{2}x+4. The slope of this line and the line parallel to it is m=-\frac{1}{2}

5. The equation is 6x+2y=4. We simplify to get: 3x+y=2.

The slope-intercept form is y=-3x+2. The line parallel to this line has slope m=-3

6. Assuming the line is y=-3x+9, then the slope is m=-3

7. Assuming the line is -5x+5y=4, then the slope-intercept form is y=x+\frac{4}{5} and the slope of the line parallel to this line is m=1

8. The equation is 9x-5y=4. The slope intercept form is y=\frac{5}{9}x-\frac{4}{9}. The slope of the line parallel to this line is m=\frac{5}{9}

9. The given equation is -x+3y=6. The slope intercept form is y=\frac{1}{3}x+2. The line  parallel to this line also has slopem=\frac{1}{3}.

10.  Assuming the given line is 6x-7y=10, then y=\frac{6}{7}x-\frac{10}{7} and the line parallel to it has slope m=\frac{6}{7}

11. Assuming the line is y-x=-3, then y=x-3 and the slope of the line parallel to it is m=1

12. The given line is 3x-5y=6. This implies that y=\frac{3}{5}x-\frac{6}{5}

7 0
3 years ago
My computer runs 250 frames per 2 seconds. How many frames would run in 3.5 minutes?
balandron [24]

Answer:437.5

Step-by-step explanation:3.5 times 250=875 divided by2 =437.5

7 0
2 years ago
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