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3 years ago

Asap help as fast as you can please

Mathematics

2 answers:

Arte-miy333 [17]3 years ago

6 0

Dear Yakiii,

Your answer should be 2 meters.
Venell has 25 model trains.
Now multiply that by 80 to get 2000.
2000 = 2 meters.
Hope this helps!!! :)

GenaCL600 [577]3 years ago

4 0

It would be 2 meters.

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(Distribute , then simplify the remaining expression. Final answer must be in standard form) Please help !!

Sergeu [11.5K]

Problem 22
$4x^2(2x^2+x-5) - x(x^3+5x^2-3) + 17$
$4x^2(2x^2)+4x^2(x)+4x^2(-5) - x(x^3)-x(5x^2)-x(-3) + 17$
$8x^4+4x^3-20x^2 - x^4-5x^3+3x + 17$
$7x^4-x^3-20x^2+3x + 17$

So the final simplified answer to problem 22 is
$7x^4-x^3-20x^2+3x + 17$

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

Problem 23
$-2x(x^3-6x^2+6)+4x^3-(5x^4+10x)$
$-2x(x^3)-2x(-6x^2)-2x(6)+4x^3-(5x^4)-(10x)$
$-2x^4+12x^3-12x+4x^3-5x^4-10x$
$-7x^4+16x^3-22x$

So problem 23 simplifies to
$-7x^4+16x^3-22x$

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

Problem 24
$4b[2a^2-5(3ab-2b^2)]+29ab^2$
$4b[2a^2-5(3ab)-5(-2b^2)]+29ab^2$
$4b[2a^2-15ab+10b^2]+29ab^2$
$4b[2a^2]+4b[-15ab]+4b[10b^2]+29ab^2$
$8a^2b-60ab^2+40b^3+29ab^2$
$8a^2b-31ab^2+40b^3$

So problem 24 simplifies to
$8a^2b-31ab^2+40b^3$

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

Problem 25
$2y(6x-4x^2y)+13x^2y^2-6$
$2y(6x)+2y(-4x^2y)+13x^2y^2-6$
$12xy-8x^2y^2+13x^2y^2-6$
$12xy+5x^2y^2-6$

The final answer for problem 25 is
$12xy+5x^2y^2-6$

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3 years ago

Let f(x)=x^2-8x+5. Find f(-1)

polet [3.4K]

F(x) = x² - 8x + 5

f(-1) = (-1)² - 8*(-1) + 5

= 1 + 8 + 5 = 14

f(-1) = 14.

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3 years ago

A group of kids just finished trick-or-treating. The number of pieces of candy collected by each of the 5 kids is listed below.

AleksandrR [38]

The standard deviation is about 3.81
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1 year ago

A boy has in his pocket a 50-cent piece, two dimes and two pennies. If he pulls out a coin at random, what is the probability it

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Hopefully that helps. ^ ^
{-Ghostgate-}

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2 years ago

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nydimaria [60]

Answer:The line of reflection is the y axis

Step-by-step explanation:

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2 years ago