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vlabodo [156]
2 years ago
5

What is 17,210,000,000 written in scientific notation? Enter your answer in the box.

Mathematics
1 answer:
Leni [432]2 years ago
6 0
That's easy 172.1 times 10 with the exponent of 7
.
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Find the slope of the line.<br><br> A: 1/2<br> B: - 1/2<br> C: -2<br> D: 2<br><br> Please Help
notka56 [123]
It is B) -1/2 you btw you don't have to put please help :)
4 0
3 years ago
Please Help Me with this one too
Angelina_Jolie [31]

Answer:

The second one

Step-by-step explanation:

0.5 times 5 is 2.5

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8 0
3 years ago
a spherical balloon is deflated at a rate of 256pi/3 cm^3/sec. at what rate is the radius of the balloon changing when the radiu
Hunter-Best [27]
What you need to look for is \frac { dr }{ dt } when r=8.

Now:

Volume\quad of\quad a\quad sphere:\\ \\ V=\frac { 4 }{ 3 } \pi { r }^{ 3 }

\therefore \quad \frac { dV }{ dr } =\frac { 4 }{ 3 } \pi \cdot 3{ r }^{ 2 }=4\pi { r }^{ 2 }\\ \\ \therefore \quad \frac { dr }{ dV } =\frac { 1 }{ \frac { dV }{ dr }  } =\frac { 1 }{ 4\pi { r }^{ 2 } }

And:\\ \\ \frac { dV }{ dt } =-\frac { 256\pi  }{ 3 } \\ \\ Therefore:\\ \\ \frac { dr }{ dt } =\frac { dr }{ dV } \cdot \frac { dV }{ dt }

\\ \\ =\frac { 1 }{ 4\pi { r }^{ 2 } } \cdot -\frac { 256\pi  }{ 3 } \\ \\ =-\frac { 256 }{ 12 } \cdot \frac { \pi  }{ \pi  } \cdot \frac { 1 }{ { r }^{ 2 } }

\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec
3 0
3 years ago
Can some one help me w my math
KiRa [710]

Answer: It would be B

Step-by-step explanation:

;)

7 0
2 years ago
The amount of money invested or borrowed is known as:
devlian [24]

B:Interest

Hoped this helped have a nice day

8 0
2 years ago
Read 2 more answers
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