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3 years ago

Please help very urgent

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

4 0

Answer:

330 degrees

Step-by-step explanation:

look at 4th quadrant of unit circle

(cos,sin)

(sqrt3/2,-1/2)=330

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jimmy raised $412.50 selling barbeque for a local chairity fundraiser. if he charged $7.50 for per pound of barbeque, how many p

Triss [41]

Answer:

Step-by-step explanation:

You first have to divide $412.50 ( the total) by $7.50 (the pounds)

Then, you will get an answer of 55

So, JImmy sold 55 pounds of barbeque total

Hope this helps :)

6 0

3 years ago

What is the answer to this

guapka [62]

Alright, first blank one is 1/3, then 2/3, then 1, then 1 1/3, then 1 2/3.
Now, shade the 1/3 and 2/3 in blue. Shade the 0, 1 and 2 in red.
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7 0

3 years ago

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According to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation, there were over 71 million wildif

suter [353]

Answer:

The probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is P=0.412.

Step-by-step explanation:

We know the population proportion π=0.8, according to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation.

If we take a sample from this population, and assuming the proportion is correct, it is expected that the sample's proportion to be equal to the population's proportion.

The standard deviation of the sample is equal to:

$\sigma_s=\sqrt{\frac{\pi(1-\pi)}{N}}=\sqrt{\frac{0.8*0.2}{500}}=0.018$

With the mean and the standard deviaion of the sample, we can calculate the z-value for 0.79 and 0.81:

$z=\frac{p-\pi}{\sigma}=\frac{0.79-0.80}{0.018} =\frac{-0.01}{0.018} = -0.55\\\\z=\frac{p-\pi}{\sigma}=\frac{0.81-0.80}{0.018} =\frac{0.01}{0.018} = 0.55$

Then, the probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is:

$P(0.79$

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3 years ago

Luke can read 4 pages in 1 minute make a ratio table with the number of minutes and numbers of pages read for luck reading 0,1,2

Llana [10]

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4 years ago

Find the perimeter of the triangle defined by the coordinates (9, 0), (-5, 0), and (-10, 6). (Round to nearest tenth)

Masteriza [31]

The perimeter is 41.7

Find the length of each side using the distance formula:
$d=\sqrt{(0-0)^2+(-5-9)^2}=\sqrt{0^2+14^2}=\sqrt{196}=14
\\
\\d=\sqrt{(6-0)^2+(-10--5)^2}=\sqrt{6^2+(-5)^2}=\sqrt{36+25}=\sqrt{61}=7.8
\\
\\d=\sqrt{(6-0)^2+(-10-9)^2}=\sqrt{6^2+(-19)^2}=\sqrt{36+361}=\sqrt{397}=
\\19.9$

Adding the side lengths, we have
14+7.8+19.9=41.7

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3 years ago

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