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Troyanec [42]
4 years ago
5

For some reason, in our math class

Mathematics
1 answer:
Alona [7]4 years ago
5 0
Then there would be 9 girls and 23 boys
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HELPPPPP ME PLEASEEEE
Ne4ueva [31]

Answer:

y =  \sqrt{85}

Step-by-step explanation:

(11)²=(6)²+ (y)²

121=36 +(y)²

y² =121 –36

y²=85

y =  \sqrt{85}

4 0
3 years ago
Newborn males have weights with a mean of 3272.8 g and a standard deviation of 660.2 g. Newborn females have weights with a mean
Maksim231197 [3]

The correct option is:   a female who weighs 1500 g

<em><u>Explanation</u></em>

<u>Formula for finding the z-score</u> is:  z= \frac{X-\mu}{\sigma}

Newborn males have weights with a mean(\mu) of 3272.8 g and a standard deviation(\sigma) of 660.2 g.

So, the z-score for the newborn male who weighs 1500 g will be.......

z(X=1500)=\frac{1500-3272.8}{660.2}=-2.685... \approx -2.69

According to the normal distribution table,  P(z=-2.69)=0.0036 = 0.36\%

Now, newborn females have weights with a mean(\mu) of 3037.1 g and a standard deviation(\sigma) of 706.3 g.


So, the z-score for the newborn female who weighs 1500 g will be.......

z(X=1500)=\frac{1500-3037.1}{706.3}=-2.176... \approx -2.18

According to the normal distribution table,  P(z=-2.18)=0.0146 = 1.46\%

As we can see that the <u>probability that a newborn female has weight of 1500 g is greater than newborn male</u>,  so a newborn female has the weight of 1500 g that is more extreme relative to the group from which he came.

5 0
3 years ago
Find the product of 0.51 x 2.427​
Natalka [10]

Answer:1.23777

Step-by-step explanation: Calculators answer

7 0
2 years ago
HELP ME PLZZZ HURRY PLZ
tresset_1 [31]
It's letter C .

Hope this help :)
5 0
3 years ago
Read 2 more answers
6. Josh had 5 times as much money as Karen. Both spent $20 each. Josh has 6 times as
vazorg [7]

Answer:

Josh had $500

Karen had $100

Step-by-step explanation:

          J = 5K

  J - 20 = 6(K - 20)

5K - 20 = 6K - 120

      100 = K

          J = 500

3 0
3 years ago
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