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antoniya [11.8K]
2 years ago
9

Solve: 8 5/6 – 4 9/10

Mathematics
1 answer:
Natali [406]2 years ago
3 0
1. Find the greastest common factor
2. Multiply a number to get to the great common factor (what you do to the bottom you must do to the top)
3.Subtract
4. Simplify as much as possible

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The length of a screw produced by a machine is normally distributed with a mean of 0.75 inches and a standard deviation of 0.01
White raven [17]
99.7%
You can use normalCdf(.72,.78,.75,.01) to find the answer or if you standardize your numbers (z scores) normalCdf(-3,3,0,1).
6 0
3 years ago
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Help me out here fast please
Viktor [21]

Answer:

1 min 45 sec

Step-by-step explanation:

First convert 14 min to seconds.

14 x 60 = 840s

Now we can use ratios to find the answer

840s : 800m

Divide both sides by 8

105s : 100m

105s is 1 minute and 45 seconds

8 0
3 years ago
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What is the inverse of f(x)=3x-1
tatiyna

Answer:

$ \frac{(y + 1)}{3} $

Step-by-step explanation:

Call $ f(x) = y = 3x - 1 $

Now, $ y + 1 = 3x $

$ \implies \frac{y + 1}{3} = x $

This is the inverse of the given function.

You can cross - verify it by substituting a point, say, $ (1,3) $

We see that the point satisfies both the equations.

3 0
3 years ago
3. A straight line passes through two points with
kirza4 [7]

Answer:

Step-by-step explanation:

Find the slope of the line

(x₁ , y₁) = (6 , 8)   & (x₂ , y₂) = (0 , 5)

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{5-8}{0-6}\\\\=\frac{-3}{-6}\\\\=\frac{1}{2}

m = 1/2  ;(x₁ , y₁) = (6 , 8)

y - y₁ = m(x - x₁)

y - 8 = \frac{1}{2}(x - 6)\\\\y - 8 =\frac{1}{2}x -\frac{1}{2}*6\\\\y - 8 =\frac{1}{2}x- 3\\\\y = \frac{1}{2}x - 3 + 8\\\\y = \frac{1}{2}x + 5

7 0
3 years ago
Which of these figures has rotational symmetry?
UkoKoshka [18]
C. 
If you spin it around 180 degrees from the center, it's the same object
3 0
3 years ago
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