<span>A) -27
B) -256, x - 32
C) 1/9
</span><span>espero que esto ayude</span>
Answer:
The area is
Step-by-step explanation:
rectangle in the middle; 24
both triangles on the side; 56
In total; 80
Answer:
The probability that the proportion of airborne viruses in a sample of 553 viruses would be greater than 5% is 0.1151.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:
The standard deviation of this sampling distribution of sample proportion is:
The sample size is, <em>n</em> = 553 > 30. Thus, the Central limit theorem is applicable in this case.
Compute the mean and standard deviation as follows:
Compute the probability that the proportion of airborne viruses in a sample of 553 viruses would be greater than 5% as follows:
Thus, the probability that the proportion of airborne viruses in a sample of 553 viruses would be greater than 5% is 0.1151.
For number 1, you would have to subtract five on both sides to get 3x is greater than or equal to 15, then you would have to make the variable (x) on its own. So, you would divide 3x by three and 15 by three to get x=5.
I am not sure if you want me to do number two, but i will do it anyways, so 8(x+4) =-8, first you would have to multiply the eight into the parenthesis, so it would be 8x +32+-8 and then you would subtract 32 on both sides to get 8x=-40 you then divide -40 by 8 and you get x is greater than -5
<h3>
Answer: C) x = 13</h3>
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Work Shown:
We have a right triangle with legs a = 5 and b = 12. The hypotenuse is c = x which is unknown for now.
Use the pythagorean theorem to find x.
a^2 + b^2 = c^2
5^2 + 12^2 = x^2
25 + 144 = x^2
169 = x^2
x^2 = 169
x = sqrt(169) .... apply the square root to both sides
x = 13