An acute angle is an angle less than 90 degrees. (smaller angle)
A right angle is exactly 90 degrees. (right angle)
An obtuse angle is over 90 degrees. (larger angle)
A reflex angle is any angle of 180 degrees. (largest angle)

You wouldn't *really* need a protractor to complete your homework; you could guesstimate.

I hope this helps!

8 0

3 years ago

The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of 0.6 minutes. Wha

Arlecino [84]

The z-score for 5 minutes is found from:
$z=\frac{X-\mu}{\sigma}
$
$z=\frac{5-4}{0.6}=1.667$
Reference to a normal distribution table shows that the cumulative probability for a z-score of 1.667 is around 0.9522.
Therefore the probability that a conversation lasts for longer than 5 minutes is:
1 - 0.9522 = 0.048 to 3 d.p.

8 0

3 years ago

Read 2 more answers

Find the unit rate:<br><br> $1.32 for 12 ounces<br><br> plz help

iren2701 [21]

Answer:

<h2>$0.11 per ounce</h2>

Step-by-step explanation:

$1.32/12oz = x/1oz

Cross Multiply.

1.32 = 12x

Divide both side by 12.

1.32/12 = x

Convert to decimal.

$0.11 for 1 ounce

3 0

2 years ago