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3 years ago

What is the volume of a sphere with a radius of 6mm

Mathematics

1 answer:

sertanlavr [38]3 years ago

8 0

Approximately 904.78

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A cup of coffee at 181 degrees is poured into a mug and left in a room at 66 degrees. After 6 minutes, the coffee is 139 degrees

katen-ka-za [31]

Answer:

Step-by-step explanation:

$\frac{dT}{dt} =k(t-66)\\T=\int\ {k(t-66)} \, dt=K(\frac{t^2}{2} -66)+c\\when t=0,T=181\\181=K(0-66)+c\\181=-66k+c\\when t=6,T=139\\139=k(\frac{6^2}{2} -66)+c\\139=-48k+c\\181-139=-66k+48k\\-42=-18k\\7=3k\\k=\frac{7}{3} \\139=-48*\frac{7}{3} +c\\c=139+112=251\\T=\frac{7}{3} (t-66)+251\\now complete the question$

3 0

3 years ago

Multiply. (x - 7)(x - 10) A) 2x + 70 B) x2 + 70 C) x2 - 70 D) x2 - 17x + 70

lozanna [386]

The answer is D. The easiest way to see this is by using the FOIL method.
First
Outside
Inside
Last. So the first is x2, the outside is -10x, the inside is -7x, and the last is 70. So it would be x2-17x+70

3 0

3 years ago

How do you use the triangle sum theorem to find the measure of each angle in degrees ?!

TEA [102]

Answer:

The Triangle Sum Theorem is also called the Triangle Angle Sum Theorem or Angle Sum Theorem. It says that all the angles inside a triangle add up to 180°.

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Take a look at the picture attached. It has a "formula": ∠a+∠b+∠c=180°

Use this as it will help you a lot. You plug in the info you already know (it doesn't matter which angle is a,b,c) and solve for the missing one. :)

Ask in the comments below if you are not sure about something.

I hope that helps you! :D

6 0

3 years ago

How do you solve this equation with substitution, I was absent for school today and wasn’t able to learn the subject please help

Alenkasestr [34]

Answer:

X=1 Y=6

Step-by-step explanation:

6x=-4x+10

10x=10

x=1

6×1=6

3 0

2 years ago

A company with 17 employees gives each employee a bonus of $459. How much does the company spend on bonuses?

Vlad1618 [11]

Answer: Option D: $7803

Step-by-step explanation:

just multiply 459 by 17 and you get your answer.

7 0

11 months ago