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3 years ago

Describe the role of stars in our galaxy and other

1 answer:

7 0

That's more than 275 million stars per day in the observable universe. Stars keep themselves fueled. They fuse elements together to make new elements.Once the star runs out of hydrogen, the helium atoms fuse together to make carbon.

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Using the data set (SCHL.Txt), investigate the effect of the categorical predictor schl (School location: 1 = Urban; 2 = Suburba

enot [183]

Answer:

As space expanded, the universe cooled and matter formed

Explanation:

Amount of time=2.5 hoursamount of time after speed increase=2 hourslet x=the initial speedlet t=the amount of hourslet y=the new speed let z=distance therefore xt=zyt=zplugging everything in,x(2.5)=zy(2)=zusing substitution y=20+x2.5x=z(20+x)(2)=z40+2x.5x=40x=80y=x+20y=100

7 0

3 years ago

Suppose that IQ scores have a bell-shaped distribution with a mean of 101 and a standard deviation of 12. Using the empirical ru

7nadin3 [17]

95.44% IQ scores are between 77 and 125

We're given,

Mean (a)=101

standard deviation (b)=12

To find : $P[77 < x < 125]$

Using Empirical Rule:

∴ $P[77 < x < 125]$ $=$ $P[\frac{77-101}{12} < \frac{x-a}{b} < \frac{125-101}{12}]\\$

$=P[-2 < z < 2]\\$

$=P[Z < 2]-P[Z < -2]\\$

$=0.9772-0.0228\\$

$=0.9544$ =95.44% (approx)

Learn more about Empirical rule of IQ calculation here:

brainly.com/question/13077017

#SPJ10

3 0

2 years ago

When making lemonade, 1 over 4 cup of sugar will make 5 glasses of lemonade. How many cups of sugar would be needed to make 22 g

olga_2 [115]

Answer:

1/4 sugar = 5 glasses

1/4 x 22/5 sugar = 5 x 22/5 glasses

22/20 sugar = 22 glasses

1 1/10 cup of sugar = 22 glasses lemonade

4 0

2 years ago

Read 2 more answers

The function f is continuous on the interval (0,16), and f is twice differentiable except at x=5 where the derivatives are undef

Oliga [24]

Using it's definition, it is found that the function f(x) has a point of inflection at:

A. x = 8 only.

<h3>What are the points of inflection of a function?</h3>

The critical points of a function are the <u>values of x</u> for which:

$f^{\prime\prime}(x) = 0$

Additionally, there has to be a change in the sign of $f^{\prime\prime}(x)$

Researching the problem on the internet, it is found that:

For 0 < x < 5, $f^{\prime\prime}(x) > 0$ .

For x = 5, $f^{\prime\prime}(x)$ is undefined.

For 5 < x < 8, $f^{\prime\prime}(x) < 0$ .

For x = 8, $f^{\prime\prime}(x) = 0$ .

For 8 < x < 12, $f^{\prime\prime}(x) > 0$ .

For x = 12, $f^{\prime\prime}(x) = 0$ .

For 12 < x < 16, $f^{\prime\prime}(x) > 0$ .

The two conditions, $f^{\prime\prime}(x) = 0$ and a change in the signal of $f^{\prime\prime}(x)$ are only respected at x = 8, which is the lone inflection point.

You can learn more about points of inflection at brainly.com/question/10352137

7 0

2 years ago

The artist has successfully conveyed his message that love conquers all.

valkas [14]

Answer:

iiiiiiiismsodndjskndhc

6 0

3 years ago