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REY [17]
3 years ago
7

When x = 12 , y = 47. What is the value of y when x = 312 ?

Mathematics
2 answers:
inna [77]3 years ago
7 0

Answer:

1222

Step-by-step explanation:

12/312 = 47/x

X=1222

grandymaker [24]3 years ago
4 0

Answer:

1222

Step-by-step explanation:

312/12 = 26

So, you have to multiply y (47) by 26

This will get you 1222

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Stacy earns $15 each week plus $.50 for each customer on her paper route. She wants to earn at least $25 each week. What equatio
Airida [17]

Answer:  .50x+15=25  

I hope this helps.

6 0
3 years ago
Assume the number of typo errors on a single page of a book follows Poisson distribution with parameter 1=3. Calculate the proba
asambeis [7]

Answer:

(i). 0.03981

(ii).0.0048

Step-by-step explanation:

The probability density function of Poisson distribution is:

P(X=x,\lambda)=\frac{e^{-\lambda}\lambda^x}{x!} \; \;\;\,\; x=0,1,2,...

Consider <em>X</em> is a number of typos error on a single page of a book and <em>X</em> follows the Poisson distribution with \lambda = \dfrac{1}{3}

(i) Exactly two typos:

            \begin{aligned}P(X = 2,\frac{1}{3})&=\frac{e^{-\frac{1}{3}}\frac{1}{3}^{2}}{2!}\\&=\frac{e^{-\frac{1}{3}}}{18}\\&=0.03981\end{aligned}

(ii) Two or more typos:

       \begin{aligned}P(X\geq2,\frac{1}{3})&=1-[P(X=0)+P(X=1)+P(X+2)]\\&=1-[0.7165+0.2388+0.03981]\\&=1-0.9952\\&=0.0048\end{aligned}

7 0
4 years ago
Simplify<br><br><img src="https://tex.z-dn.net/?f=%20%7B3%7D%5E%7B7y%7D%20%20%5Ctimes%20%20%7B81%7D%5E%7B8y%7D%20%5Ctimes%20%20%
Papessa [141]

Answer

3^{7y} * 81^{8y} * 3^9  * 27^{-9y} = 3^{7y} * (3^4)^{8y} * 3^9  *(3^3)^{-9y}          

                                =3^{7y} * (3)^{32y} * 3^9  *(3)^{-27y}\\\\=3^{7y +32y +9 -27y}\\\\=3^{12y+9}

Tip :    

\frac{1}{27^{9y}}  = 27^{-9y} = (3^3)^{-9y} = 3^{-27y}                          

5 0
3 years ago
Read 2 more answers
Y=7/8
Dahasolnce [82]
The answer would be neither

The equations both don't have slope so parallel is out, and in order to be perpendicular, they must cross at the 90 degree angel which they are not . So the answer would be neither
3 0
4 years ago
Read 2 more answers
If I had 169 apples and I give away 139 apples to my friends how many would I had?
iris [78.8K]
169-139=30
...............
3 0
3 years ago
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