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love history [14]
3 years ago
12

Please answer this correctly

Mathematics
1 answer:
ra1l [238]3 years ago
4 0

Answer:

42 13/20 km

Step-by-step explanation:

10 3/10+9 7/20+14 7/10+ 8 9/20=41+ (6+7+14+9)/20=41 + 1 13/20= 42 13/20 km

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A magazine contains thirteen pages. You
n200080 [17]

Answer:

10

Step-by-step explanation:

because your more likely to open to a page deeper in the magazine

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3 years ago
Use the following half-life graph to answer the following question:
AlexFokin [52]

Answer:

The correct answer is 12.5.

Step-by-step explanation:

When looking at the x axis, you locate the 2. After 2 minutes, the point connects at (2,12.5). Therefore, the correct answer is 12.5.

8 0
3 years ago
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Need help ! Simplify the rational expression.state any excluded values.2x/-5x+x^2
mario62 [17]
I assume it is:

2x/(-5x+x^2), then you can simplify the x, but only if it is not zero:

2/(x-5), for x different to zero.
3 0
3 years ago
What is the perimeter of this shape?
Fudgin [204]

Answer:

87 feet

Step-by-step explanation:

Two of the sides here are unknown. The one on the leftmost side is equal to 9, since on the other side it also has a length of 9 feet. The section on the top right has a length of 30-9-9=12 units. Adding all of these values together now, you get a total perimeter of:

30+9+12+9+9+9+9=87 feet

Hope this helps!

8 0
3 years ago
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The standard normal curve shown below models the population distribution of a random variable. What proportion of the values in
patriot [66]
About 32.34% of the values do not lie between the z-scores of -1.3 and 0.75.

First, we need to find the region between the z-scores.

If you look at a normal distribution table, you will get the following values:

0.75 = 77.34%
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Subtraction those gives us the area between the z-scores.
77.34 - 9.68 = 67.66%

Now, just subtract that value from 100% to get the amount outside of the area.
100 - 67.66 = 32.34%
4 0
3 years ago
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