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Inga [223]
3 years ago
13

Hey! This isn't really a qeustion you have to use ur brain for its just ur opinon, should our class do this or not?

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
Because St. Patrick’s Day is not usually celebrated and it’s always fun to share with other people.
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Angle Sum Theorem, thank you so much for the help, in advance! ​
daser333 [38]

Answer:

x=20°, and y is 90° btw

Step-by-step explanation:

This is an iscoceles triangle, since the base angles are equal and the altitude bisects one of the angles. 180 - 110 = 70, meaning the angles are 70 , 70 and 2x. We know that 70 + 70 + 2x = 180 from the angle sum theorem, so 140 + 2x = 180, and 40 = 2x. x = 20°

7 0
3 years ago
Solve the Integral of 1/(1-y2)
Eva8 [605]
<span>−<span>1/<span><span>(<span>y+1</span>)</span><span>(<span>y<span>−1</span></span>) is the answer</span></span></span></span>
5 0
3 years ago
Thickness measurement ancient prehistoric Native American Pot Shards discovered in Hopi Village are approximately normally distr
beks73 [17]

Answer:

a) P(X

And we can find this probability using the normal standard table and we got:

P(z

b) P(X>7)=P(\frac{X-\mu}{\sigma}>\frac{7-\mu}{\sigma})=P(Z>\frac{7-5.1}{0.9})=P(z>2.11)

And we can find this probability using the complement rule and the  normal standard table and we got:

P(z>2.11)=1-P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

X \sim N(5.1,0.9)  

Where \mu=5.1 and \sigma=0.9

Part a

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using the normal standard table and we got:

P(z

Part b

We are interested on this probability

P(X>7)

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X>7)=P(\frac{X-\mu}{\sigma}>\frac{7-\mu}{\sigma})=P(Z>\frac{7-5.1}{0.9})=P(z>2.11)

And we can find this probability using the complement rule and the  normal standard table and we got:

P(z>2.11)=1-P(Z

4 0
3 years ago
Can someone plsss help me with this one problem plsss I’m trying to get a 90 and also can you explain how you got your answer
Karo-lina-s [1.5K]
From question,
lacy learned 34 recipes in 17 weeks,
so in 1 week she learns = 34/17 =2 recipes,
hence she learns 40 recipes in
= 40*2
=80 recipes.
7 0
3 years ago
Need help ASAP ITS DUE SOON PLEASE AND SHOW WORK !!!
kumpel [21]

Answer:

33.51032

Step-by-step explanation:

Because equation is 3/4 times r to the 3 power times pi

2 to the 3 power=8

8 times 3/4=32/3

32/3 times pi = 33.51032

3 0
2 years ago
Read 2 more answers
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