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myrzilka [38]
3 years ago
14

Select the correct answer. Which expression is equivalent to x + y + x + y + 3(y + 5)? A. 2x + 5y + 5 B. 2x + y + 30 C. 2x + 5y

+ 15 D. 2x + 3y + 10 Reset
Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
8 0

Answer:

c

Step-by-step explanation:

nekit [7.7K]3 years ago
5 0

Answer:

Question

Select the correct answer. Which expression is equivalent to x + y + x + y + 3(y + 5)? A. 2x + 5y + 5 B. 2x + y + 30 C. 2x + 5y + 15 D. 2x + 3y + 10 Reset          Answer C.

Step-by-step explanation:

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The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 4016
hodyreva [135]

Answer:

Required Probability = 0.97062

Step-by-step explanation:

We are given that the weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 4016 grams and a standard deviation of 532 grams.

Let X = weight of the newborn baby, so X ~ N(\mu=4016 , \sigma^{2} = 532^{2})

The standard normal z distribution is given by;

              Z = \frac{X-\mu}{\sigma} ~ N(0,1)

Now, probability that the weight will be less than 5026 grams = P(X < 5026)

P(X < 5026) = P( \frac{X-\mu}{\sigma} < \frac{5026-4016}{532} ) = P(Z < 1.89) = 0.97062

Therefore, the probability that the weight will be less than 5026 grams is 0.97062 .

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3 years ago
You buy two packages of almonds. One package is 10.47 kg and the other is 8.23 kg. What is the difference?
fomenos

Answer:

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Step-by-step explanation:

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3 years ago
Make t the subject of this formula.<br> r = 7 (t + 3)
kari74 [83]

Answer:

t= <u>r-21</u>

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Step-by-step explanation:

r = 7(t+3)

expanding the bracket

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bringing t to the left hand side

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A potato sorting machine produces 5 pounds of potatoes an average for the standard aviation is a half a pound assuming the weigh
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