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Elis [28]
3 years ago
12

What is the quotient of 7^-1/7^-2

Mathematics
1 answer:
Archy [21]3 years ago
4 0

Answer:

7

Step-by-step explanation:

7^-1=1/7

7^-2= 1/49

1/7*49(you multiply by the reciprocal)

49/7=7

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The graph shows the distance in miles, d, a car travels in hours. ​ ​ Explain why the graph does or does not represent a proport
ryzh [129]

Answer: Ashamalasha

Step-by-step explanation:Ashamalasha

3 0
3 years ago
Suppose the height of an 18 year old boy is normally distributed with mean 187cm fifteen percent of 18 year old boys have height
BARSIC [14]

Answer:

the probability that two 18 year old boys chosen at random will have heights greater than 185cm is 0.403

Step-by-step explanation:

P( x > 193) = 0.15

= 1- p(x less than or equal 193)

= 1 -p( z < (x- u) /sigma)

= 1- p( z< (193 - 187)/ sigma)

= 1- p( z< 6/ sigma)

P(z< 6/sigma) = 1 - 0.15

P(z < 6/sigma)= 0.85

6/sigma =1.036

Sigma= 6/1.036

Sigma= 5.79

P( x> 185) = 1- p( x< 185)

= 1- p (z < (185- 187)/5.79)

= 1- p( z< -0.345)

= 1- 0.365

= 0.635

P (x> 185) = 0.635 × 0.635

=0.403

3 0
3 years ago
6TH GRADE MATH<br> someone please solve this
Luden [163]
Since the amount of money earned is based of of the amount of pies he sells...

y = 14x

Hope this helps!
4 0
3 years ago
Read 2 more answers
What is done wrong in this question please answer it ASAP!!! i need to submit in 30 min
Shkiper50 [21]

Answer:

dividing by a fraction is multiplying by the reciprocal.

This example swaps the left hand in stead of the right hand.

Step-by-step explanation:

So the correct approach would have been:

6 \times \frac32

\frac{18}{2} = 9

6 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20-%20x%20-%202%20%5Cdiv%20x%28x%20%7B%7D%5E%7B2%7D%20%20-%204%29" id="TexFormula1" title=" -
saw5 [17]

Answer:

Step-by-step explanation:

Hello,

First of all we will take any real number x different from 0, -2, +2 as dividing by 0 is not allowed and then we can write

\dfrac{( - x - 2)}{x(x^2 - 4)}=-\dfrac{x+2}{x(x-2)(x+2)}=\large \boxed{ -\dfrac{1}{x(x-2)}}

because we know that

x^2-4=x^2-2^2=(x-2)(x+2)

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

8 0
3 years ago
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