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alexandr402 [8]

3 years ago

14

Using the table below, determine the unit rate in beats per minute.

1 answer:

Zepler [3.9K]3 years ago

7 0

Answer: Where is the table?

Step-by-step explanation: i wish i could help but im afraid there isnt a table

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Find the range of the following piecewise function. [27,3) (-22,3] (27,3] [-22,3)

Otrada [13]

Answer:

The answer is "(27,3]"

Step-by-step explanation:

Please find the complete question in the attached file.

$\to f(-5) = (-5)^2 + 2 = 25 +2 =27\\\\\to f(7)= 7-4 = 3\\\\answer \ is = ( 27, 3]\$

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Sorry I'm not good at math but I just want to learn how to do this

kolezko [41]

The answer is 8.6. I hope this helped you out!

4 0

4 years ago

Solve x2 + 2x + 9 = 0

Keith_Richards [23]

$x^2+2x+9=0 \\ \\
a=1 \\ b=2 \\ c=9 \\ b^2-4ac=2^2-4 \times 1 \times 9=4-36=-32 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-2 \pm \sqrt{-32}}{2 \times 1}=\frac{-2 \pm \sqrt{-16 \times 2}}{2}=\frac{-2 \pm 4i\sqrt{2}}{2}=-1 \pm 2i\sqrt{2}$

The answer is D.

8 0

3 years ago

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Work out length of BC

Neporo4naja [7]

Answer:

assume $13 = z \\ 8 =x \\ bc = y$

by phytagorean theorem

${y}^{2} + {x}^{2} = z^{2}$

so

$bc = y = \sqrt{ {z}^{2} - {x}^{2} } = \sqrt{169 - 64} = \sqrt{105}$

3 0

3 years ago

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What equation in slope-intercept form represents the line that passes through the points (3,-2) and (1, -3)?

makvit [3.9K]

Answer:

the answer is d.

Step-by-step explanation:

its d. hope this helped!! also heres a picture to prove d is the right answer

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