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3 years ago

What's the radius of a circle with area 9π units2?

Mathematics

1 answer:

storchak [24]3 years ago

3 0

Answer:

option C : 3 units

Step-by-step explanation:

radius of circle is 3 units

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hope this will be helpful to you .

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+ Evaluate 5 to the second power + (16 - 14 ÷ 2)

Neko [114]

Answer: 34

Step-by-step explanation:

I looked it up on google

PLATO USERS ONLY

7 0

3 years ago

Which of the following is the complete factorization of 10x - 3 - 3x2? -(3x + 1)(x - 3) -(3x - 1)(x - 3) (3x - 1)(x + 3)

qaws [65]

Answer:

$=-\left(3x-1\right)\left(x-3\right)$

Step-by-step explanation:

$10x-3-3x^2\\\mathrm{Factor\:out\:common\:term\:}-1\\=-\left(3x^2-10x+3\right)\\\mathrm{Factor}\:3x^2-10x+3:\quad \left(3x-1\right)\left(x-3\right)\\3x^2-10x+3\\\mathrm{Write\:in\:the\:standard\:form}\:ax^2+bx+c\\=3x^2-10x+3\\\mathrm{Break\:the\:expression\:into\:groups}\\=\left(3x^2-x\right)+\left(-9x+3\right)\\\mathrm{Factor\:out\:}x\mathrm{\:from\:}3x^2-x\mathrm{:\quad }x\left(3x-1\right)\\3x^2-x\\\mathrm{Apply\:exponent\:rule}:\quad \:a^{b+c}=a^ba^c\\x^2=xx\\=3xx-x$

$\mathrm{Factor\:out\:common\:term\:}x\\=x\left(3x-1\right)\\\mathrm{Factor\:out\:}-3\mathrm{\:from\:}-9x+3\mathrm{:\quad }-3\left(3x-1\right)\\-9x+3\\\mathrm{Rewrite\:}9\mathrm{\:as\:}3\cdot \:3\\=-3\cdot \:3x+3\\\mathrm{Factor\:out\:common\:term\:}-3\\=-3\left(3x-1\right)\\=x\left(3x-1\right)-3\left(3x-1\right)\\\mathrm{Factor\:out\:common\:term\:}3x-1\\=\left(3x-1\right)\left(x-3\right)\\=-\left(3x-1\right)\left(x-3\right)$

5 0

4 years ago

Read 2 more answers

Una máquina puede estampar la fecha en 150 cartas en un minuto¿A cuantas cartas le imprimirá la fecha en una hora?

OLga [1]

Answer:

La máquina estampará 9000 letras en una hora.

Step-by-step explanation:

hay 60 minutos en una hora y 150 letras por minuto, así que 150 x 60 = 9000

espero que esto ayude!

6 0

3 years ago

Emily and her friends bought 100 seashells in all. What was the total cost of all of the seashells?

Black_prince [1.1K]

Need more info to answer is but it’s just 100 times the cost of one shell

6 0

3 years ago

John wants to travel to Iceland he will need to have $20409, he wants to go in 15 years. how much must he deposit monthly into a

Dmitrij [34]

Answer: 203.4

So, he has a dream to go to Iceland sometime. He would need to deposit a minimum of $203/month. To get this answer we need to take 20409 ÷ 180 (180 is the amount on months in 15 years.) And multiply that by the equanimity equation (y=2/5=6)

8 0

4 years ago