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3 years ago

Fill in the blank with a number to make the expression a perfect square.

1 answer:

6 0

Answer: 36

Explanation: To find the last number you would need to divide 12 by 2. Than square the answer you get. It will get you 36.

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PLEASE HELP ME!!!

Ede4ka [16]

The roots of the quadratic equation $ax^2+bx+c=0$ are

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$ .

Here the given quadratic equation is $5x^2-13x+7=0$ . Here $a=5,b=-13,c=7$ .

The roots are

$x=\frac{13 \pm \sqrt{13^2-4*5*7}}{2*5} \\ x=\frac{13 \pm \sqrt{29}}{10}$

7 0

2 years ago

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Here are several recipes for sparkling lemonade for each recipe describe how many tablespoons for lemonade mix it takes per cup

Alexeev081 [22]

Answer:

Step-by-step explanation:

I can not answer because the information is not specific and not enough to be answered

3 0

3 years ago

What is the Mean Average deviation from the Mean?<br> Numbers: 6, 2, 3, 3, 2, 2

Irina-Kira [14]

Answer:

2.42

Step-by-step explanation:

standard deviation= sqrt(variance)

Variance=E[X2] - E[X]2

E[X] = sum(X)/n=35/9, so E[X]2 = 1225/81

E[X2] =sum(X2)/n = 189/9 = 170/81

Variance= 476/81

Standard deviation = sqrt(476/81) ~2.42

6 0

2 years ago

PLEASE PLEASE PLEASE PLEASE HELP!! even if it's only one! actually answer it!

Alex

So for number 2 i am 100% on which the area of the triangle is 6.
and then 1 i think not 100% sure is an acute angle again not 100%
then 3. it don't make sense to me so idk about that 1 srry.
~Good Luck~

6 0

3 years ago

The function f(x) = 20(3)^x represents the growth of a fish population every year in a local lake. Jesse wants to manipulate the

valentina_108 [34]

We need the exponents law

$a^{bx}=(a^b)^x$
So if
a=3
b=1/2

then
$3^{1/2*x}=(3^{1/2})^x$
where x represent every half a year.

3 0

3 years ago

Read 2 more answers