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Snezhnost [94]
2 years ago
11

What is the number halfway between 8516 and 8586?

Mathematics
1 answer:
madam [21]2 years ago
6 0

Answer:

<u>8551</u>

Step-by-step explanation:

  • The midpoint of two numbers can be found by finding the mean of the two numbers
  • Midpoint = 8516 + 8586 / 2
  • We clearly see both numbers start with the digits '85' therefore their midpoint will also start with '85'
  • The remaining two digits on those two numbers should be added and divided by 2
  • ⇒ 16 + 86 / 2 = 102/2 = 51
  • Midpoint = <u>8551</u>
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Whats 4 + 2 i forgot,<br> and whats 5 + 5 + 9 + 8 + 90+ 90 - 1000 i also forgot
Vlad [161]

Answer:

4 + 2 = 6

5 + 5 + 9 + 8 + 90+ 90 - 1000 = -793

Step-by-step explanation:

hope this helps ;)

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8 0
2 years ago
A. 5<br> B. 5.5<br> C. 6<br> D. 5[2
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Answer is D 5]2 that's wut I know
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3 years ago
How many faces does the solid made from the net below have? A. 7B. 8C. 12D. 18
Kruka [31]

Answer:

B. 8

Explanation:

The figure forms a septagon.

The hexagons form the base, and the rectangles attached to them form the sides.

Therefore, in total the solid has two hexagons as sides and 6 rectangles connecting the hexagon to the base hexagon. Hence, in total the solid has

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7 0
1 year ago
Duck #1 lays eggs whose weights are normally distributed with a mean of 70gramsand a standard deviation of 6 grams.Duck #2 lays
Genrish500 [490]

Answer:

26.11% probability that Duck #2’s egg weighs more than Duck #1’s egg

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

If an egg is randomly chosen from each duck, what is the probability that Duck #2’s egg weighs more than Duck #1’s egg?

Duck #2 egg will weigh more if the subtraction of duck's 2 egg by duck's 1 egg is larger than 0.

When we subtract normal distributions, the mean is the subtraction of the means. So

\mu = 65 - 70 = -5

The standard deviation is the square root of the sum of the variances. So

\sigma = \sqrt{6^2+5^2} = \sqrt{61} = 7.81

Now, we have to find 1 subtracted by the pvalue of Z when X = 0. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{0 - (-5)}{7.81}

Z = 0.64

Z = 0.64 has a pvalue of 0.7389

1 - 0.7389 = 0.2611

26.11% probability that Duck #2’s egg weighs more than Duck #1’s egg

4 0
2 years ago
Graph: y - 3 = 1/2 (x + 2)
11Alexandr11 [23.1K]

Answer:

Slope: \frac{1}{2}

Y-intercept: (0,4)

Step-by-step explanation:

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X: -2, -1, 0, 1, 2

Y: 3, \frac{7}{2}, 4, \frac{9}{2}, 5

6 0
3 years ago
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