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-Dominant- [34]
3 years ago
9

Nick was scuba diving at -32 1/2 feet if he descends another 8 3/5 feet what is his location ?

Mathematics
2 answers:
alina1380 [7]3 years ago
6 0

Answer:

-41 1/10

Step-by-step explanation:

subtract the two numbers may i get brainliest plz

irina1246 [14]3 years ago
6 0

This is a really simple fraction problem. All we have to do is realize that, because he is descending, the 8\frac{3}{5} is actually negative, so we get -32\frac{1}{2}-8\frac{3}{5}=-41\frac{1}{10} which can also equal -41.1

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160(.25) + 100 = y

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Read 2 more answers
The number of DVDs in a random person’s home collection is counted for a sample population of 80 people. The mean of the sample
VLD [36.1K]

Answer:

E = 3.46\ movies

Step-by-step explanation:

The formula to find the error is:

E = z_{\frac{\alpha}{2}}\frac{\sigma}{\sqrt{n}}

Where:

\sigma is the standard deviation

n is the sample size

So

n = 80 people

\sigma = 12 movies

Then

1- \alpha = confidence level = 0.99

\alpha= 1-0.99

\alpha = 0.01\\\\\frac{\alpha}{2} = 0.005

We look for the Z value: Z_{0.005}

Z_{0.005}=2.58  Looking in the normal standard tables

Therefore:

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7 0
3 years ago
What is the complex formula for dilation with scale factor 2 and rotation by 90
zhuklara [117]

Answer:

  z' = 2iz +11 -2i

Step-by-step explanation:

Dilation multiplies each point by the scale factor. Rotation by 90° CCW is equivalent to multiplication by i.

When the center is not the origin, the transformation is applied to the difference from the center, then the result is added to the center.

  z' = 2i(z -(3+4i)) + (3+4i)

Simplifying gives ...

  z' = 2iz -6i +8 +3 +4i

  z' = 2iz +11 -2i

_____

<em>Check</em>

For example, consider the point 1 unit east of the center of dilation/rotation. That point is z = 4+4i. Applying the transformation moves this point to ...

  z' = 2i(4 +4i) +11 -2i = 8i -8 +11 -2i

  z' = 3 +6i . . . . . 2 units north of the center of dilation/rotation

This is where it is expected to be after dilation by a scale factor of 2 and rotation 90° CCW.

7 0
3 years ago
The Babycake Candy Company receives 900 cases of imported bonbons every 30 days. The number of cases of bonbons on inventory t d
STALIN [3.7K]
30x30=900 so your answer is 900
7 0
3 years ago
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