3 years ago

Find the Missing length indicated

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

7 0

Answer:

dhjdhshsbdbdhhdhehthfixudhdjfbhf

ooopsss my baby sissy

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The weights of red delicious apples are approximately normally distributed with a mean of 9 Ounces and a standard deviation of 0

Simora [160]

Answer:

The mean of W is 55 ounces.

The standard deviation of W is 4.33 ounces.

Step-by-step explanation:

Let X: weight of a red delicious apple, and B: the weight of the box and packing material.

The distribution that will represent W: the total weight of the packaged 5 randomly selected apples will be also normally distributed.

Applying the property of the mean: $E(aX)=aE(X)$ , the mean of W will be:

$\mu_W=E(W)=E(5X+B)=5E(X)+E(B)=5*9+10=45+10=55$

Applying the property of the variance: $V(aX+b)=a^2V(X)$ , the variance of W will be:

$\sigma^2_W=V(W)=V(5X+B)=5^2V(X)+V(B)=25*0.75+0=18.75$

The mean standard deviation of W will be the squared root of V(W):

$\sigma_W=\sqrt{V(W)}=\sqrt{18.75}=4.33$

The mean of W is 55 ounces.

The standard deviation of W is 4.33 ounces.

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4 years ago

Jackson wrote the equation below on the whiteboard.

faust18 [17]

B = 7

7 x 6 = 42

42 + 6 = 48.

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The sales tax in your city is 4.4%, and an item costs $3 before tax.

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4.4%*3=0.132

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Answer:

4c + 6a < = 120 ...4(20) + 6(6) = 116 <== correct

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