Plz help me I’ll give brainliest

An isosceles triangle has an angle that measures 120°. Which other angles could be in that isosceles triangle? 120 50 10 30

N76 [4]

Answer:

30°

Step-by-step explanation:

First angle = 120°

Remaining two angles would be congruent.

$Measure \: of \: other \: \angle s \\ \\ = \frac{180 \degree - 120 \degree}{2} \\ \\ = \frac{60 \degree}{2} \\ \\ = 30 \degree$

3 0

3 years ago

Read 2 more answers

Assume that the heights of men are normally distributed with a mean of 70.270.2 inches and a standard deviation of 2.12.1 inches

Wittaler [7]

Answer:

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

$X \sim N(70.2,2.12)$

Where $\mu=70.2$ and $\sigma=2.12$

Since the disgtribution for X is normal then the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

We can find the probability of interest we got:

$P(\bar X >71.2)=P(Z>\frac{71.2-70.2}{\frac{2.12}{\sqrt{36}}}=2.83)$

And using the complement rule and a calculator, excel or the normal standard table we got this:

$P(Z>2.83)=1-P(Z$

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 heights of a population, and for this case we know the distribution for X is given by:

$X \sim N(70.2,2.12)$

Where $\mu=70.2$ and $\sigma=2.12$

Since the disgtribution for X is normal then the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

We can find the probability of interest we got:

$P(\bar X >71.2)=P(Z>\frac{71.2-70.2}{\frac{2.12}{\sqrt{36}}}=2.83)$

And using the complement rule and a calculator, excel or the normal standard table we got this:

$P(Z>2.83)=1-P(Z$

5 0

3 years ago

Which is the graph of f(x) = StartRoot x EndRoot?

shusha [124]

Answer:

The 4th graph

Step-by-step explanation:

To determine which graph corresponds to the f(x) = \sqrt{x} we will start with inserting some values for x and see what y values we will obtain and then compare it with graphs.

f(1) = \sqrt{1} = 1\\f(2) = \sqrt{2} \approx 1.41\\f(4) = \sqrt{4} = 2\\f(9) = \sqrt{9} = 3

So, we can see that the pairs (1, 1), (2, 1.41), (4, 2), (3, 9) correspond to the fourth graph.

Do not be confused with the third graph - you can see that on the third graph there are also negative y values, which cannot be the case with the f(x) =\sqrt{x}, the range of that function is [0, \infty>, so there are only positive y values for f(x) = \sqrt{x}

6 0

3 years ago

90X4/8= need the answer pleasee

rodikova [14]

45 hope this helps :)

3 0

3 years ago

The next model of a sports car will cost 6.7% less than the current model the current model cost 58 thousand how much will the p

Anarel [89]

Answer:

The price of the next model will be $54,114. The price dropped by $3,886

Step-by-step explanation:

8 0

4 years ago