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3 years ago

Help? (1# only) In really confused :(

Mathematics

1 answer:

insens350 [35]3 years ago

7 0

I’m is to it’s a lot of numbers 3467632

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Carmela is growing her hair to donate to a charity. The hair must be a minimum length of 10 inches. Her hair is already 4 inches

mojhsa [17]

It's kind of important to know how long it's been since her last cut but...
y=years
6y+4=10
I think that would work.

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3 years ago

A rectangular prism has a volume of 720 cubic units. How many unit cubes would fill the volume of the solid if they were packed

Rom4ik [11]

Answer:

360

Step-by-step explanation:

720/2=360

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3 years ago

Please helppppppppppppoppopppp

Talja [164]

Answer: I think it might be 2.

8 0

3 years ago

PLEASE HELP 50 PTS AND BRAAINLIEST

pychu [463]

Answer: Multiply numerator and denominator by a radical that will get rid of the radical in the denominator. .

Make sure all radicals are simplified. Simplify the fraction if needed.

Step-by-step explanation:

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3 years ago

Ignore the 30% but I need help!

Brilliant_brown [7]

x² + 9x + 1

let's start by grouping the ones with the same variable

(x² + 9x) + 1

(x² + 9x + [?]²) + 1

so, we seem to be missing a value there, to get a perfect square trinomial, let's recall a perfect square trinomial has a middle term that is 2 * "other two values", namely

$\bf \qquad \textit{perfect square trinomial} \\\\ (a\pm b)^2\implies a^2\pm \stackrel{\stackrel{\text{\small 2}\cdot \sqrt{\textit{\small a}^2}\cdot \sqrt{\textit{\small b}^2}}{\downarrow }}{2ab} + b^2$

so, the middle term on this group will be 9x.

we know 2*x*[?] = 9x, so then

$\bf 2\cdot x\cdot \boxed{?}=9x\implies \boxed{?}=\cfrac{9x}{2x}\implies \boxed{?}=\cfrac{9}{2}$

so that's our mystery felllow.

now, let's bear in mind that we'll be borrowing from our very good friend Mr Zero, 0, so if we add (9/2)², we also have to subtract (9/2)².

$\bf \left[x^2+9x+\left( \cfrac{9}{2} \right)^2 - \left( \cfrac{9}{2} \right)^2 \right]+1\implies \left[x^2+9x+\left( \cfrac{9}{2} \right)^2 \right]+1- \left( \cfrac{9}{2} \right)^2 \\\\\\ \left( x+\cfrac{9}{2} \right)^2+1-\cfrac{81}{4}\implies \left( x+\cfrac{9}{2} \right)^2-\cfrac{77}{4}$

7 0

4 years ago