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Marianna [84]
2 years ago
8

Cho khối chóp có diện tích đáy B=3 và chiều cao h=4. Thể tích của khối chóp đã cho bằng

Mathematics
1 answer:
lyudmila [28]2 years ago
4 0

Answer:

D. 4

Step-by-step explanation:

 V =\frac{1}{3}Bh=\frac{1}{3}.3.4=4

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Which represents a quadratic function?
Zanzabum

Answer:

B

Step-by-step explanation:

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c is a reciprocal. It has its highest power in the denominator, and that is not a quadratic. A quadratic is an equation whose highest power is 2 on its base (x) and whose highest power is in the numerator, not the denominator. This choice is rather tricky because the quadratic formula can be used on it if you change x = 1/z. Then the equation becomes f(x) = 4z^2 - 2z + 1. But as it is given and likely as you have been told, this is not a quadratic. This will factor into  (2z - 1)(2z - 1). If I were a student, I'd question this one. It would be interesting to see how your instructor would eliminate it.

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8 0
3 years ago
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Answer:

362

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So, the ones digit is 2. Since the hundreds digit is one more, it's 3. And because the tens is twice the hundreds, it's 6. The number is 362.

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3 years ago
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