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3 years ago

What is the missing constant term in the perfect square that starts with x^2-20xx 2 −20xx, squared, minus, 20, x ?

Mathematics

1 answer:

tangare [24]3 years ago

8 0

Answer:

Missing constant: 100

Step-by-step explanation:

perfect square (a - b)^2 = a^2 - 2ab + b^2

In this case

20x = 2 * x * 10

and

10^2 = 100

(x - 10)^2 = x^2 - 20x + 100

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|n-3|=5 solve for n and graph the solution set

Alborosie

$|n-3|=5\iff n-3=5\ \vee\ n-3=-5\qquad|\text{add 3 to both sides}\\\\n=8\ \vee\ n=-2$

8 0

3 years ago

Sixteen college freshmen were asked to record the number of alcoholic drinks they typically consume in a week. Here are their da

rjkz [21]

Solution: The correct option is d. 8.75

Explanation:

The formula for variance is:

$Variance =\frac{\sum(x-\bar{x})^{2}}{n}$

First we need to find the mean $\bar{x}$ of the given data:

$\bar{x}=\frac{2+4+6+0+1+10+9+0+6+3+6+8+5+4+6+2}{16}=\frac{72}{16} =4.5$

Now let's find $\sum(x-\bar{x})^{2}$ , please have a look at the attached picture:

$\therefore Variance = \frac{140}{16}=8.75$

7 0

3 years ago

What fractions are equivalent to these fractions 4/5= 3/8= 1/6=

lukranit [14]

Answer:

1 and the 3rd

Step-by-step explanation:

3 0

3 years ago

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Apply the distribution property to produce an equivalent expression 2(7g + 7)

ira [324]

21+g or it could be(still the same thing) 21 + 1g

3 0

4 years ago

Please help !! Geometry homework. Will mark brainliest answer !

KiRa [710]

Answer: 375

Step-by-step explanation: If the problem was pythagorean theorem. Then I hope this explantion will help.

5 squared and 20 squared. 5 squared would get you 25 and 20 squared should get you 400. Then you should take 400-25=375. Your answer therefore is 375

I hope this helped!

3 0

4 years ago

Read 2 more answers