SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!

Answers

Answer 1

Answer:

-11a^2+1ab+4b^2; P-Q would mean you rearrange the equation to where (-4a^2-2ab+9b^2)-(7a^2-3ab+5b^2). Don't forget to distribute the negative for Q since you plugged it into a variable.

-4a^2-2ab+9b^2-7a^2+3ab-5b^2

Add/Subtract like terms

-11a^2+1ab+4b^2

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Which of the following is the equation of a line that passes through the points (0,6) and (2,10)?A. y = -2x + 6
B. y = 2x - 6
C. y = 2x + 6
D. y = -2x - 6

Answers

Given:
(0,6) and (2,10)

a) y = -2x + 6 ; y = -2(2) + 6
y = -2(0) + 6 ; y = -4 + 6
y = 6 ; y = 2

b) y = 2x - 6
y = 2(0) - 6
y = -6

c) y = 2x + 6 ; y = 2(2) + 6
y = 2(0) + 6 ; y = 4 + 6
y = 6 ; y = 10 Choice C. is the correct equation.

Answer: option c!

Step-by-step explanation:

For the equation y = 3x2 − 4x + 11, choose the correct application of the quadratic formula. x equals four plus or minus the square root of negative four squared minus four times three times eleven, all divided by two ti x equals negative four plus or minus the square root of negative four squared minus four times three times eleven, all divided x equals negative three plus or minus the square root of three squared minus four times negative four times eleven, all divided x equals three plus or minus the square root of three squared minus four times negative four times eleven, all divided by two t

Answers

y = 3x² - 4x + 11
0 = 3x² - 4x + 11
x = -(-4) ± √((-4)² - 4(13)(11))
2(3)
x = 4 ± √(16 - 4(143))
6
x = 4 ± √(16 - 572)
6
x = 4 ± √(556)
6
x = 4 ± 2√(139)
6
x = 2 ± √(139)
3

Answer:

What he said below was that it was your second choice

(hope this helps or at least thats what i got from it)

What 2 numbers multiply to -360 and add up to 9

Answers

xy = -360
x + y = 9

x + y = 9
- x - x
y = -x + 9

xy = -360
x(-x + 9) = -360
x(-x) + x(9) = -360
-x^2 + 9x = -360
+ 360 + 360
-x^2 + 9x + 360 = 0
-1(x^2) - 1(-9x) - 1(-360) = 0
-1(x^2 - 9x - 360) = 0
-1 -1
x^2 - 9x - 360 = 0
(x + 15)(x - 24) = 0
x = -15 or x = 24

The two numbers that multipky to -360 and 9 are -15 and 24.

N ∈ lNWe set A= n(n²+11)
Show that A is divisible by 3
( n is natural number )
please try to help me in this i need it tomorrow plz...

Answers

@Konrad509's answer was fantastic.

What you first need to know is this. 3 consecutive natural numbers multiplied by each other, for instance: (1*2*3) or (2*3*4) or (3*4*5) or (4*5*(2*3)) can be described using the abstract expression:

(n-1)n(n+1)

-------------

Now:

A=n(n²+11),

and:

n(n²+11)

=n(n²-1+12)

=n³-n+12n

=n(n²-1)+12n

=n(n+1)(n-1)+12n

=(n-1)n(n+1)+(4*3)n

-------------------------

So:

A=(n-1)n(n+1)+(4*3)n

Therefore, A is divisible by 3.

$n(n^2+11)=\nn(n^2-1+12)=\nn(n^2-1)+12n=\n(n-1)n(n+1)+12n$

$(n-1)n(n+1)$ is the product of 3 consecutive natural numbers, so it has be to divisible by 3.

$12n$ is also divisible by 3 because 12 is divisible by 3.

If both elements of the sum are divisible by 3 so the sum itself is divisible by 3 as well.

Find the outlier in the set of data.17, 13, 16, 18, 38, 14, 21, 24, ____, 38
14
16
17

Answers

An outlier is a data point that is unlike any of the ones around it. Therefore, the outlier in this case is 38.

Answer:

Step-by-step explanation:

The outlier of the data set is defined as the data point which lies outside the overall given data set.

Now, the given set is:

17, 13, 16, 18, 38, 14, 21, 24, 38, 14, 16, 17

Now, we can see from the given set that 38 lies outside overall given data set, therefore according to the definition of an outlier, 38 is an outlier.

Solve 12ds/w=CD for w.

Answers

divide 12 on both sides
ds/w=cd/12
now multiply ds on both sides
w=cd/12ds

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