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3 years ago

Need help my peoples may u please help???

Mathematics

1 answer:

Kazeer [188]3 years ago

5 0

Answer:

Half.

Step-by-step explanation:

It's being divided by two, unlike the second part of the equation. :)

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A pool has dimensions of 40m by 20m. We'd like to add a tile path surrounding the pool with a width of 1m all the way around the

taurus [48]

The area of the path would me 407 m

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3 years ago

Answer this pls! Fast

allsm [11]

Answer:

Step-by-step explanation:

the length is what will tell you

4 0

3 years ago

HELP. Multiply the polynomials and simplify the answer. Show your work.

Aliun [14]

Answer:

Part 1)

$=12a^5-6a^4-5a^3-24a^2+12a-7$

Part 2)

$(2x^3-10x^2+5x+14)\div(x-2)=2x^2-6x-7$

Step-by-step explanation:

Part 1)

We would like to multiply:

$(3a^3-2a-7)(4a^2-2a+1)$

Distribute each term from the first group into the second group. So:

$=3a^3(4a^2-2a+1)-2a(4a^2-2a+1)-7(4a^2-2a+1)$

Distribute further:

$=(12a^5-6a^4+3a^3)+(-8a^3+4a^2-2a)+(-28a^2+14a-7)$

Combine like terms:

$=(12a^5)+(-6a^4)+(3a^3-8a^3)+(-28a^2+4a^2)+(-2a+14a)+(-7)$

Simplify:

$=12a^5-6a^4-5a^3-24a^2+12a-7$

Part 2)

We would like to divide:

$(2x^3-10x^2+5x+14)\div(x-2)$

Using long division.

Please refer to the attached document.

For the first step, x goes into 2x³ 2x² times. Hence, we multiply our divisor by 2x².

Next, x goes into -6x^2 -6x times. Hence, we multiply our divisor by -6x.

Finally, x goes into -7x -7 times. So, we multiply our divisor by -7 and we simplify.

Therefore:

$(2x^3-10x^2+5x+14)\div(x-2)=2x^2-6x-7$

7 0

3 years ago

Y=3x+4 , 9x-3y=-6 do the lines intersect or are they parallel or are they perpendicular

Angelina_Jolie [31]

Answer:

Lines are parallel.

Step-by-step explanation:

The given lines are $y=3x+4,\ 9x-3y=6$

Rearrange the equation in the slope intercept form that is $y=mx+b$ where $m$ is the slope.

<em>First Line:</em>

$y=3x+4$

compare it with $y=mx+b$

slope ( $m_{1}$ ) of first line $=3$

<em>Second Line:</em>

$9x-3y=6\\9x-6=3y\\3y=9x-6$

divide both by $3$

$y=3x-3$

compare it with $y=mx+b$

slope $(m_{2})$ of second line $=3$

Since slope of two lines are equal

$m_{1}=m_{2}=3$

hence these lines are parallel.

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3 years ago

In a recipe, for every tablespoon of sugar there are four teaspoons of salt. If a batch uses twelve tablespoons of sugar, how ma

marysya [2.9K]

4*12= 48
The answer is 48

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3 years ago