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ki77a [65]
3 years ago
8

I need help please?!!!

Mathematics
2 answers:
poizon [28]3 years ago
8 0

Step-by-step explanation:

\bigg( \frac{ {7}^{ - 3} }{10}  \bigg)^{ - 2}  \\  \\  =  \bigg( \frac{ 10}{{7}^{ - 3} }  \bigg)^{ 2}  \\  \\  =  \bigg( { 10 \times{7}^{  3}  } \bigg)^{ 2}  \\  \\  =  \bigg( { 10^{ 2}  \times{7}^{  3 \times 2}  } \bigg)  \\  \\  = {7}^{  6}   \times 10^{ 2}

Vadim26 [7]3 years ago
7 0

Answer:

Step-by-step explanation:

(\frac{7^{-3}}{10})^{-2}=\frac{7^({-3*-2})}{10^{-2}}\\\\=\frac{7^{6}}{10^{-2}}\\\\=7^{6}*10^{2}

(a^{m})^{n}=a^{m*n}\\\\\frac{1}{a^{-m}}=a^{m}

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My math teacher told me that circumstance was pie I dont know what pie is ;(
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Answer:

Pie= 3.14

Step-by-step explanation:

The enclosing boundary of a curved geometric figure, especially a circle.The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle). Simply divide the circumference by π and you will have the length of the diameter. The diameter is just the radius times two, so divide the diameter by two and you will have the radius of the circle!

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3 years ago
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Solve for q. <br><br> 16pq^2 =25
Nady [450]

Question:

<em>Solve for q.  </em>

<em>16pq^2 =25</em>

Answer:

<em>16pq^=25</em>

<em>p=25/16q^2</em>

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Find the value of x.<br>A.5<br>B. 40<br>C. 45 <br>D. 20​
Alinara [238K]

(B) x = 40

Step-by-step explanation:

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TV studio has brought in 9 boy kittens and 6 girl kittens for a cat food commercial. The director is going to choose 9 of these
Amanda [17]

Answer:

probability = 0.2517

Step-by-step explanation:

given data

boy kittens = 9

girl kittens = 6

choose kittens at random = 9

solution

total kitten are = 9 + 6 = 15

first we get here total no of probability that is

n(s) = 15 C 9

n(s) = \frac{15!}{9!(15-9)!}  

n(s) =5005

and

total way to chose 5 boy kittens is = 9 C 3

n(3) = \frac{9!}{3!(9-3)!}  

n(3) =  84

and

total way to chose 4 girl kittens is = 6 C 4

n(4) = \frac{6!}{4!(6-4)!}  

n(4) = 15

so

total way to chose 5 boy kittens and 4 girl kittens is

total way = 84 ×15  = 1260

so probability that the director chooses 5 boy kittens and 4 girl kittens is

probability = \frac{1260}{5005}  

probability = 0.2517

6 0
3 years ago
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