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2 years ago

Help me Help me Help me

Mathematics

1 answer:

koban [17]2 years ago

6 0

Answer:

For the first one is 75 and 30 looks on a calculator add 75+75+30=180

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Plz, help!!!!! 15 pts

Korolek [52]

3/12 + 10/12 = 13/12 because the points lie in-between the 1/6 and 2/6 marks and the 6/6 and 7/6 marks.

6 0

2 years ago

Read 2 more answers

A study of 35 golfers showed that their average score on a particular course was 92. The sample standard deviation was 5. We wan

svlad2 [7]

Answer:

$t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322$

Step-by-step explanation:

We have a sample of size n = 35, $\bar{x} = 92$ and $s = 5$ . As we want to construct a 95% confidence interval to estimate the value of the true population mean $\mu$ , we should use the pivotal quantity given by $T = \frac{\bar{X}-\mu}{S/\sqrt{n}}$ which comes from the t distribution with n - 1 = 35 - 1 = 34 degrees of freedom. Besides we should use the t-value $t_{\alpha/2} = t_{0.05/2} = t_{0.025} = 2.0322$ , i.e., regarding the t-distribution with 34 degrees of freedom, we have an area of 0.025 above 2.0322 and below the probability density function. The rationale behind this is that $P(-2.0322\leq T\leq 2.0322) = 0.95$ because of the simmetry of the t distribution.

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2 years ago

Plss tell me guy's plssssssssssssssssssssssssssssssssssssssssssssss

Ksenya-84 [330]

Answer:

According to my equation it's 20°

8 0

2 years ago

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Lim x--> 0 (e^x(sinx)(tax))/x^2

Tom [10]

Make use of the known limit,

$\displaystyle\lim_{x\to0}\frac{\sin x}x=1$

We have

$\displaystyle\lim_{x\to0}\frac{e^x\sin x\tan x}{x^2}=\left(\lim_{x\to0}\frac{e^x}{\cos x}\right)\left(\lim_{x\to0}\frac{\sin^2x}{x^2}\right)$

since $\tan x=\dfrac{\sin x}{\cos x}$ , and the limit of a product is the same as the product of limits.

$\dfrac{e^x}{\cos x}$ is continuous at $x=0$ , and $\dfrac{e^0}{\cos 0}=1$ . The remaining limit is also 1, since

$\displaystyle\lim_{x\to0}\frac{\sin^2x}{x^2}=\left(\lim_{x\to0}\frac{\sin x}x\right)^2=1^2=1$

so the overall limit is 1.

4 0

2 years ago

How many labeled points are between points b and u ?

Olenka [21]

Answer:

It is difficult to give a specific answer without your scenario but maybe this may help you out a bit.

Let's say you have a line like the one attached:

I labelled certain points b and u so you can use it as a reference. Now all you need to do is count all the points that lie on the same line and are found between.

In this case it would be point d and point e because the rest of the points do not line on the same line. For this problem particular scenario, the answer would be 2.

7 0

3 years ago