Plz help, plz show work

Mathematics

1 answer:

Shkiper50 [21]4 years ago

3 0

25 $\pi$ -13 $\pi$ which equals 12 $\pi$

This is because the circles have areas of 9 $\pi$ and 4 $\pi$ respectively.

Plus we can tell the square has the area of 100 due to the fact that the diameters of the circles add up to 10, meaning the larger circle has a radius equal to 5 and an area of 25 $\pi$ . Subtract the other two from the larger one and you get your answer.

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Someone answer this please!

Savatey [412]

B.) Square

I used Math-way for this answer cause if you type in the following points it is shown to be a square..

I hope this helps!

3 0

4 years ago

[(y+4)/(y+7)]+1=(y+3)/(y+1)

Sunny_sXe [5.5K]

<span>First note that y cannot equal -7 or -1 as division by zero is undefined. So that if it comes up in our solution we know that it is not a real solution.

[(y+4)/(y+7)]+1=(y+3)/(y+1) make the left side have a common denominator

(y+4+y+7)/(y+7)=(y+3)/(y+1) combine like terms on left side

(2y+11)/(y+7)=(y+3)/(y+1) cross multiply

(2y+11)(y+1)=(y+3)(y+7) expand

2y^2+13y+11=y^2+10y+21 subtract y^2 from both sides

y^2+13y+11=10y+21 subtract 10y from both sides

y^2+3y+11=21 subtract 21 from both sides

y^2+3y-10=0 expand so factoring is easier

y^2-2y+5y-10=0 factor

y(y-2)+5(y-2)=0 which is equal to

(y+5)(y-2)=0

y=-5 or 2</span>

6 0

3 years ago

What is the answer to<br><img src="https://tex.z-dn.net/?f=150%20%5Cgeqslant%2015x" id="TexFormula1" title="150 \geqslant 15x" a

miss Akunina [59]

Step-by-step explanation:

$150\geq15x\to15x\leq150\qquad\text{divide both sides by 15}\\\\\dfrac{15x}{15}\leq\dfrac{150}{15}\\\\x\leq10\to x\in(-\infty,\ 10]$