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2 years ago

Identify the bases and faces, and then the name of the given figure.

Mathematics

1 answer:

SVEN [57.7K]2 years ago

5 0

Answer:

heptagon; rectangles; heptagonal prism

Step-by-step explanation:

Since the base is a heptagon (hepta- is seven sides), that gets rid of both the pentagon answers. Since the sides are all rectangles, that gets rid of the Heptagon and Triangles answer. :)

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masha68 [24]

Answer:

Step-by-step explanation:

If you plug in 5 1/3 to the equation, the result is 6, meaning that the point lies on the line.

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3 years ago

Give 3 pairs of prime numbers that add up to 50

aleksley [76]

Answer:

3 and 47

7 and 43

19 and 31

Step-by-step explanation:

Prime numbers up to 50:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47

Therefore,

3 + 47 = 50

7 + 43 = 50

19 + 31 = 50

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2 years ago

BRAINLIEST HERE

Leno4ka [110]

I’m pretty sure it 19 :-)

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3 years ago

Will give brainliest

SCORPION-xisa [38]

Answer: 1/7776

Step-by-step explanation: Decimal if needed:0.00012

Hope this helped

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2 years ago

How to solve this problem?

valentinak56 [21]

Very nice handwriting but the math and English are confusing.

Let's assume we're told

$\displaystyle 45 = \sum_{i=1}^9 (x_i - 10)^2$

The subscript is important.

I think we're told the similar sum with 11 gives the smallest possible value for the sum. This is a rather cagey way of telling us 11 is the mean of the nine points. The mean is the number which minimizes the sum of squared deviations.

$\displaystyle 45 = \sum_{i=1}^9 (x_i - 10)^2 = \sum x_i^2 - 20 \sum x_i + 9(100)$

$\displaystyle \sum x_i^2= 20 \sum x_i - 900$

If 11 is the mean, the sum of the points is 9(11)=99.

$\displaystyle \sum x_i^2= 20 (99) - 900 = 1080$

Answer: 1080

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3 years ago