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2 years ago

Please help me!! ASAP! This is grade 8! Properties of Right Angle Triangles

Mathematics

1 answer:

Jlenok [28]2 years ago

3 0

Step-by-step explanation:

-one angle is always 90°

-The side opposite angle 90° is hypotenuse

-hypotenuse is the longest side

-the sum of other 2 interior angles is 90°

-area of right angled triangle is 1/2×base×height

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Each coffee pot hold 6 cups of coffee we sell 10 cups of coffee every fifteen minutes how many pots of coffee do I need to make

svet-max [94.6K]

Answer:

7 pots of coffee (If you want to be precise its 6 2/3)

Step-by-step explanation:

So basically you need 10 cups of coffe in fifteen minutes, so 60/15=4 then time 10. so 40 is how much coffee you need in a hour, but we are solving the pot so 40/6= 6 2/3. but it says how many pots so we round it up so its 7. (Unless you wanna be precise)

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According to a poll, 55 % of Americans do not know that GOP stands for Grand Old Party (Time, October 17, 2011). Assume that thi

Ivenika [448]

Answer:

$\hat p \sim N (p , \sqrt{\frac{p(1-p)}{n}})$

The mean is given by:

$\mu_{\hat p} = 0.55$

And the deviation:

$\sigma_{\hat p} =\sqrt{\frac{0.55*(1-0.55)}{953}}= 0.0161$

Step-by-step explanation:

For this case we assume that the true population proportion of Americans do not know that GOP stands for Grand Old Party is 0.55 and we select a random sample of n = 953 americans

For this case we assume that we satisfy the conditions to use the normal approximation for $\hat p$

1) np >10 , n(1-p)>10

2) Independence

3) Random sample

4) The sample size is less than 10% of the population size

We assume that all the conditions are satisfied and the distribution for $\hat p$ would be:

$\hat p \sim N (p , \sqrt{\frac{p(1-p)}{n}})$

The mean is given by:

$\mu_{\hat p} = 0.55$

And the deviation:

$\sigma_{\hat p} =\sqrt{\frac{0.55*(1-0.55)}{953}}= 0.0161$

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3 years ago

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Answer:

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Step-by-step explanation:

the first circle is open so it is the () parentheses, the second circle is closed so it is the [] brackets.

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3 years ago

What is 0.9(-0.11)? I need help with this lol

Katyanochek1 [597]

Answer:

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Step-by-step explanation:

just multiply

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