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2 years ago

Quadratic Equations Solve for x. x2+2=102 Enter the solutions for the equation in the boxes.

Mathematics

2 answers:

crimeas [40]2 years ago

7 0

I believe that the equation has X to the 2 power meaning that the answer for X is...
X= 10, and -10

Stells [14]2 years ago

7 0

The given quadratic equation is :

$x^{2}+2=102$

We have to solve the given quadratic equation for the value of 'x'.

$x^{2}+2=102$

$x^{2}=102-2$

$x^{2}=100$

$x=\sqrt{100}$

x= $\pm 10$

So, the value of 'x' in the given quadratic equation are 10 and -10.

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Birth weights in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495 g. The Newport

s344n2d4d5 [400]

Answer:

$P(2450$

And we can find this probability with this difference:

$P(-1.96$

If we use the normal standard table or excel we got:

$P(-1.96$

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

Step-by-step explanation:

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

$X \sim N(3420,495)$

Where $\mu=3420$ and $\sigma=495$

We are interested on this probability

$P(2450$

And we can use the z score formula given byÑ

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

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

$P(2450$

And we can find this probability with this difference:

$P(-1.96$

If we use the normal standard table or excel we got:

$P(-1.96$

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

6 0

2 years ago

$175 for 5 football game tickets how much is per ticket

vodomira [7]

For one ticket is $35

8 0

2 years ago

Read 2 more answers

Can someone please help me!

vladimir1956 [14]

Hello!

To find the circumference of a circle you do $2 \pi r$ where r is the radius of the circle

So we do 2 $\pi 72$

Then we substitute pi for 3.14

2 * 3.14 * 72 = 452.16 yds

Then we multiply this by 5 since he runs 5 laps

Which gives us the answer of 2260.8 yds

Hope this helps!

6 0

2 years ago

Please help me out!!!!

LuckyWell [14K]

Answer:

the value for x is

$11 \sqrt{3}$