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2 years ago

I need help with finding the pair of angles

Mathematics

1 answer:

cestrela7 [59]2 years ago

6 0

Answer:

Straight

Step-by-step explanation:

supplementary means sum of two angles

with 180

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What does SOH,CAH,TOA mean?

Mice21 [21]

Answer:

Use Sin if Opposite Hypotenuse, Use Cosine if Adjacent Hypotenuse, and Use Tangent if Opposite Adjacent

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3 years ago

I’m I right? I kinda but kinda don’t get this question I lost my notes and I just learnt this

belka [17]

Yes, you are correct

3 0

3 years ago

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In a survey of 603 adults, 98 said that they regularly lie to people conducting surveys. Create a 99% confidence interval for th

marysya [2.9K]

Answer:

The population proportion is estimated to be with 99% confidence within the interval (0.1238, 0.2012).

Step-by-step explanation:

The formula for estimating the population proportion by a confidence interval is given by:

$\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}$

Where:

$\hat{p}$ is the sample's proportion of success, which in this case is the people that regularly lie during surveys,

$z_{\alpha /2}$ is the critical value needed to find the tails of distribution related to the confidence level,

$n$ is the sample's size.

<u>First</u> we compute the $\hat{p}$ value:

$\hat{p}=\frac{successes}{n}=\frac{98}{603}=0.1625$

<u>Next</u> we find the z-score at any z-distribution table or app (in this case i've used StatKey):

$z_{\alpha /2}=2.576$

Now we can replace in the formula with the obtained values to compute the confidence interval:

$\hat{p}\pm z_{\alpha /2}\times\sqrt{\frac{\hat{p}\times(1-\hat{p})}{n}}=0.1625\pm 2.576\times\sqrt{\frac{0.1625\times(1-0.1625)}{603}}=(0.1238, 0.2012)$

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3 years ago

Ksenia wants to chop broccoli and carrots for a competition. Her goal is to chop at least 20 vegetables (condition A) with a tim

Lapatulllka [165]

Answer:

At least 10 carrots

Step-by-step explanation:

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3 years ago

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On Monday your bank account balance was -$12.58. Because you didn't realize this you wrote a $30.72 check. A. What is the new ba

Liula [17]

A-
-$12.58
B-
-$37.58
C-
You need $37.58 to bring it back up to $0

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3 years ago