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soldier1979 [14.2K]
2 years ago
14

What are the solutions to 2(x+1^2)=18

Mathematics
1 answer:
stiks02 [169]2 years ago
3 0

Answer:

2( x + 1) = 18

2x + 2 = 18

2x = 16

x = 16/2 = 8

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~~~15 POINTS~~~
REY [17]
Let's call bicycles 'b' and unicycles 'u'
Note that bicycles have 2 tires, and unicycles have 1 tire.

We can make two equations:

b = u + 8
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Solving the first equation for u, we get:

u = b - 8

Plug that equation into the second, and we get:

2b + (b - 8) = 46

Subtract 2b on both sides.

1(b - 8) = 46 - 2b

Basically, I used b and your question used n.

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Put the number over each the total that was added then, divide the bottom number to into the top number
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(7/8) divided by 200
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3 years ago
The highest recorded temperature during the month of July for a given year in Death Valley, California has an approximately norm
S_A_V [24]

Answer:

P(X

And we can find this probability using excel or the normal standard tabe and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:

X \sim N(123.8,3.1)  

Where \mu=123.8 and \sigma=3.1

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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If we apply this formula to our probability we got this:

P(X

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6 0
3 years ago
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Answer:

x = 110°

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This means that ½ (210 – x) = 50.

½ ( 210 – x ) × 2 = 50 × 2

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½ ( 100 ) = 50.

50 = 50.

8 0
2 years ago
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