3 years ago

Anyone know this?? i need help!

Mathematics

1 answer:

Alex777 [14]3 years ago

7 0

Answer:

45.50(7/10)

Step-by-step explanation:

Multiplication with fractions is the same as division with integers

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Which of the sets shown include the elements of Set Z that are both even numbers and multiples of 3? Z = {–12, –10, –9, –1, 3, 6

gregori [183]

Answer:

B. -12,6

Step-by-step explanation:

6 0

3 years ago

Help help i need help anyone ?

REY [17]

-9-6i/-3-2i
Factor -3 out of expression
-3(3+2i)/-3-2i
Then extract the negative sign out of the expression
-3(3+2i)/-(3+2i)
Reduce the fraction with -(3+2i)
-3/-1
-3*-1=3
Hope this helps

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3 years ago

SPECIAL PRODUCTS- PERFECT SQUARE TRINOMIALS <br> 1. (2x - y)(4x2 + 2xy + y2) <br> Anyone know??

Ad libitum [116K]

(2x - y)(4x2 + 2xy + y2) =

8x3 + 4x2y + 2xy2 - 4xy2 - 2xy2 - y3 (combine and simplify like terms)

= 8x3 - y3

8 0

3 years ago

I need help solving this problem. <img src="https://tex.z-dn.net/?f=4x%20cos%20%5E%7B-1%7D%20%282x%2B4%29-%20%5Csqrt%7B3-3%20x%5

Gnesinka [82]

Given:
$f(x)=4xcos^{-1}(2x+4)-\sqrt{3-3x^2}$

Using
$\frac{d}{dx}cos^{-1}(x)=-\frac{1}{\sqrt{1-x^2}}$
we derive
$\frac{d}{dx}4xcos^{-1}(2x+4)$
$=4cos^{-1}(2x+4)-\frac{8x}{\sqrt{1-(2x+4)^2}}$

Similarly, using
$\frac{d}{dx}\sqrt{x}=\frac{1}{2\sqrt{x}}$
we derive
$\frac{d}{dx}(-\sqrt{3-3x^2})$
$=\frac{3x}{\sqrt{3-3x^2}}$

Therefore, the derivative is
$f'(x)=\frac{d}{dx}(4xcos^{-1}(2x+4)-\sqrt{3-3x^2})$
$=4cos^{-1}(2x+4)-\frac{8x}{\sqrt{1-(2x+4)^2}}+\frac{3x}{\sqrt{3-3x^2}}$

3 0

3 years ago

Read 2 more answers

Diego ran 3 kilometers in 20 minutes. andre ran 2,550 meters in 17 minutes. who ran faster

algol13

Answer:diego

Step-by-step explanation:

7 0

3 years ago