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2 years ago

Please help! Only if you know!

Mathematics

2 answers:

Sphinxa [80]2 years ago

4 0

Answer:

Acute Scalene

Step-by-step explanation:

mr Goodwill [35]2 years ago

3 0

Yellow or red!!! hope this helps :)

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2 years ago

What is the easiest math problem in the world

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Find the sum of 1 + 0 .

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Circumference. :)))))

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Two chemists working for a chicken fast-food company, have been producing a very popular sauce. Let’s call then Jesse and Mr. Wh

a_sh-v [17]

Answer:

Check the explanation

Step-by-step explanation:

Let $\overline{x}$ and $\overline{y}$ be sample means of white and Jesse denotes are two random variables.

Given that both samples are having normally distributed.

Assume $\overline{x}$ having with mean $\mu_{1}$ and $\overline{y}$ having mean $\mu_{2}$

Also we have given the variance is constant

We can test hypothesis as

$H0: \mu_{1} = \mu_{2}H1: \mu_{1} > \mu_{2}$

For this problem

Test statistic is

$T=\frac{\overline {x}-\overline {y}}{s\sqrt{\frac {1}{n1} +\frac{1}{n2}}}$

Where

$s=\sqrt{\frac{(n1-1)*s1^{2}+(n2-1)*s2^{2}}{n1+n2-2}}$

We have given all information for samples

By calculations we get

s=2.41

T=2.52

Here test statistic is having t-distribution with df=(10+7-2)=15

So p-value is P(t15>2.52)=0.012

Here significance level is 0.05

Since p-value is <0.05 we are rejecting null hypothesis at 95% confidence.

We can conclude that White has significant higher mean than Jesse. This claim we can made at 95% confidence.

3 0

3 years ago

Consider triangle abc what is the value of y in the triangle

Yakvenalex [24]

Answer:

y = 50

Step-by-step explanation:

All triangle angles add up to 180 degrees.

To set this equation up, you need to add everything given in the triangle and set it equal to 180:

y + y + 80 = 180

Add like terms:

2y + 80 = 180

Subtract 80 from both sides:

2y + 80 = 180

- 80 - 80

___________

2y = 100

Divide both sides by 2:

y = 50

If you're unsure, you can plug in the 50 for y:

y + y + 80 = 180

50 + 50 + 80 = 180

100 + 80 = 180

180 = 180

4 0

2 years ago