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3 years ago

Factor completely, then place the answer in the proper location on the grid. 9x 4 -225y 8

Mathematics

2 answers:

sasho [114]3 years ago

8 0

Answer:

the answer to the question

agasfer [191]3 years ago

5 0

Answer: 9 (x^2 -5y^4) (x^2+5^4)

Step-by-step explanation:

Hi, to solve this we have to analyze the equation.

9x^4 -225 y ^8

First, we have to remove the common factor (9)

So, mathematically speaking:

9 (x^4 -25y^8)

The next step is to factor the difference of two perfect squares

9 (x^2 -5y^4) (x^2+5^4)

Feel free to ask for more if it´s necessary or if you did not understand something.

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1.678 rounded to the nearest hundredth

Talja [164]

Good morning,

Answer:

1.678 rounded to the nearest hundredth is 1.68

Step-by-step explanation:

By looking at the number 1.678 it’s clear that the hundredth digit is 7

since 8∈{5,6,7,8,9} then we delete the 8 and add one to 7

we get 1.68 .

7 0

3 years ago

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Which set of ordered pairs represents a function? (1 point) {(0, 1), (1, 3), (1, 5), (2, 8)} {(0, 0), (1, 2), (2, 6), (2, 8)} {(

Aleonysh [2.5K]

Answer:

{(0, 2), (1, 4), (2, 6), (3, 6)}

Step-by-step explanation:

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2 years ago

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PLS HELP ME!!!! I WILL MARK U!!!!!<br><br> MATH!!!!

erica [24]

Answer:

-38

Step-by-step explanation:

y=2

z=-17

yz-y^2

(2)(-17)-(2)^2

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4 0

3 years ago

A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey

Lubov Fominskaja [6]

Answer:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

Step-by-step explanation:

For this case we have the following distribution given:

X 0 1 2 3 4 5 6

P(X) 0.3 0.25 0.2 0.12 0.07 0.04 0.02

For this case we need to find first the expected value given by:

$E(X) = \sum_{i=1}^n X_i P(X_I)$

And replacing we got:

$E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61$

Now we can find the second moment given by:

$E(X^2) =\sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97$

And the variance would be given by:

$Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779$

And the deviation would be:

$Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54$

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3 years ago

If the measure of an angle is twice the measure of its supplement what is the measure of the angle

arlik [135]

Supplement / 2 = angle

4 0

3 years ago