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3 years ago

11

Mary lives 100 meters away from Bill. Whats her speed if she reaches Bill in 50 seconds?

1 answer:

matrenka [14]3 years ago

6 0

It is 50!But really does anyone here no about the calculator?!

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What is the trinomial factor of 20t^2-13tv-15v^2

lapo4ka [179]

20t² - 13tv - 15v²
20t² - 25tv + 12tv - 15v²
(5t + 3v)(4t - 5v)

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3 years ago

What is the quotient two 1/5÷-1/10

VladimirAG [237]

The answer should be -2 hope this helps /)

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4 years ago

Read 2 more answers

the cost of renting a van is $30. An additional $0.89 is charged for each mile, m, the van is driven, Which expression can be us

kolbaska11 [484]

Answer:

30 + 0.89m

Step-by-step explanation:

I think this is the correct answer.

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3 years ago

Factor 4x^4yz-16y^3z

Iteru [2.4K]

Answer:

<h2>4x⁴yz - 16y³z = 4yz(x² - 2y)(x² + 2y)</h2>

Step-by-step explanation:

$4x^4yz-16y^3z\\\\4x^4yz=4yz\cdot x^4\\\\16y^3z=4yz\cdot4y^2\\\\4x^4yz-16y^3z=4yz\cdot x^4-4yz\cdot4y^2=4yz(x^4-4y^2)\\\\x^4-4y^2=x^{2\cdot2}-2^2y^2=(x^2)^2-(2y)^2=(x^2-2y)(x^2+2y)\\\\Used:\\\\(a^n)^m=a^{nm}\\\\(ab)^n=a^nb^n\\\\a^2-b^2=(a-b)(a+b)\\\\4x^4yz-16y^3z=4yz(x^2-2y)(x^2+2y)$

6 0

3 years ago

(3x – 1) : (x - 2) = x – 2x (x—4)<br> срочно, сор.

RSB [31]

$\frac{3x-1}{x-2}=x-2x(x-4) \frac{3x-1}{x-2}=x-2x^{2} +8x \\\frac{3x-1}{x-2}=-2x^{2} +9x3x-1= (-2x^{2} +9x)(x-2)\\3x-1= -2x^3+4x^{2} +9x^{2} -18x\\3x-1=-2x^3+13x^{2} -18x\\2x^3 -13x^{2} +18x+3x -1=0\\2x^3 -13x^{2}+21x-1=0\\ x =0.05 /or/x=3.7$

ok done. Thank to me :>

6 0

3 years ago