Viết các lũy thừa sau dưới dạng một lũy thừa hoặc các tích các lũy thừa có số nguyên và số nguyên A.8 mũ 2 B. 654

Mathematics

1 answer:

Semmy [17]3 years ago

5 0

Step-by-step explanation:

câu trả lời là trong hình ảnh trên

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Find the length of x

IRISSAK [1]

To solve you insert into proportions, then cross-multiply and simplify.
But first, add 5 and 6 to get the full side length of the bigger triangle

$\frac{x}{5} x \frac{5.5}{11}$

11x = 27.5
x = 2.5

Hope this helps!

3 0

3 years ago

Is knowing the coordinates of the vertex of a parabola enough to determine the domain and range?

puteri [66]

The <em>correct answers</em> are:

C) No: we would need to know if the vertex is a minimum or a maximum; and

C)( 0.25, 5.875).

Explanation:

The domain of any quadratic function is all real numbers.

The range, however, would depend on whether the quadratic was open upward or downward. If the vertex is a maximum, then the quadratic opens down and the range is all values of y less than or equal to the y-coordinate of the vertex.

If the vertex is a minimum, then the quadratic opens up and the range is all values of y greater than or equal to the y-coordinate of the vertex.

There is no way to identify from the coordinates of the vertex whether it is a maximum or a minimum, so we cannot tell what the range is.

The graph of the quadratic function is shown in the attachment. Tracing it, the vertex is at approximately (0.25, 0.5875).