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PtichkaEL [24]
3 years ago
15

Factor the following polynomial 7x^2+23x+7x

Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0

Answer:

x=0 and x=-30/7

Step-by-step explanation:

In order to factor, simplify the quadratic first.

7x^2+23x+7x\\7x^2+30x

Then factor using GCF and bring out the greatest common factor between them, x.

x(7x+30)

Set each factor equal to 0 and solve.

x=0

7x+30=0

x=-30/7

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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 3571
viktelen [127]

Answer: the probability that the weight will be less than 4866 grams is 0.9861

Step-by-step explanation:

Since the weights of newborn baby boys born at a local hospital are believed to have a normal distribution, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = weights of newborn baby boys.

µ = mean weight

σ = standard deviation

From the information given,

µ = 3571 grams

σ = 589 grams

The probability that the weight will be less than 4866 grams is expressed as

P(x < 4866)

For x = 4866,

z = (4866 - 3571)/589 = 2.2

Looking at the normal distribution table, the probability corresponding to the z score is 0.9861

3 0
3 years ago
Can someone pls help me
Leviafan [203]

Answer:

B 14.13 in^{3}

Step-by-step explanation:

Volume of cone is \pi r^{2} \frac{height}{3}

soo it would be:

3.14(1.5)^2(6/3)

=3.14(2.25)(2)

=7.065(2)

=14.13

7 0
3 years ago
Calculate the rate of change for each given function.
lions [1.4K]

Answer:

For function B the rise/run or the rate of change is 3/5 and for the chart would be 2

Step-by-step explanation:

Explain because its change in y/ change in x so up 3 over 5 would give 3/5 and for the chart is 2 because its change in y over change in x and since y is 4 and x is 2 4/2=2. hope this helps

5 0
2 years ago
Heres my question: A water park keeps track of the number of times each visitor goes down water slides during their visit . The
Yuri [45]

According to the calculation, each visitor went down, on average, 11.41 times.

<h3><u>Averages</u></h3>

Given that a water park keeps track of the number of times each visitor goes down water slides during their visit, and 12 visitors went down a water slide 4, 22, 16, 10, 11, 20, 20, 12, 6, 3, 11 and 1 times, to determine the average number of times each visitor went down, the following calculation must be performed:

  • (4 + 22 + 16 + 10 + 11 + 20 + 20 + 12 + 6 + 3 + 11 + 1) / 12 = X
  • 137 / 12 = X
  • 11.41 = X

Therefore, each visitor went down, on average, 11.41 times.

Learn more about averages in brainly.com/question/897199

5 0
2 years ago
5/8 write a fraction or mixed number as a decimal
Citrus2011 [14]
.125 Iknow this as a fact ._.

4 0
3 years ago
Read 2 more answers
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