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AveGali [126]
2 years ago
12

Solve for x. x = thank you in advance!

Mathematics
2 answers:
bija089 [108]2 years ago
6 0

Answer:

3x+9=180(angles on a line

3x=180-9

3x=171

x=171/3

x=57

mario62 [17]2 years ago
3 0
The answer is 3(x+9)

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If "x" represents -8 and "z" represents -11, what is x - (-z)?​
Arisa [49]

Answer:

It equals 3, but if you add two negatives inside of the parenthesis, then it equals -19.

Step-by-step explanation:

You have to plug in the numbers where the variables are, so it would be -8-(-11).

8 0
3 years ago
I need help graphing this<br> Y=3/4x + 3
Irina18 [472]

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(0,3)

Step-by-step explanation:

graph the line using the slope and y-intercept, or two points.

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Which of the following polynomial represents a difference of squares?
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3 years ago
Question Help Of 515515 samples of seafood purchased from various kinds of food stores in different regions of a country and gen
Setler79 [48]

Answer:

(0.5848 ; 0.6552)

We are confident that about 58% to 66% of sea foods in the country are Mislabelled.

No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.

Step-by-step explanation:

Sample size, n = 51

p = 0.62

1 - p = 1 - 0.62 = 0.38

n = 515

Confidence level = 90% = Zcritical at 90% = 1.645

Confidence interval = (p ± margin of error)

Margin of Error = Zcritical * sqrt[(p(1-p))/n]

Margin of Error = 1.645 * sqrt[(0.62(0.38))/515]

Margin of Error = 1.645 * 0.0214

Margin of Error = 0.035203

Lower boundary = (0.62 - 0.035203) = 0.584797

Upper boundary = (0.62 + 0.035203) = 0.655203

(0.5848 ; 0.6552)

We are confident that about 58% to 66% of sea foods in the country are Mislabelled.

No, criticism isnt valid and generalization can be made once the assumptions for constructing a confidence interval is met.

3 0
3 years ago
A study is done on the population of a certain fish species in a lake. Suppose that the population size P(1) after years is give
Andre45 [30]

Answer:

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Step-by-step explanation:

<u>Given function:</u>

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<u>Initial population size is when t = 0</u>

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<u>The multiple of 1.22 is applied every year, so the ratio of change is:</u>

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This is an exponential growth which represents 22% annual growth.

5 0
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