Which rules of exponents will be used to evaluate this expression? Check all that apply. [(-8)^4]-5 (-8)6
2 answers:
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The third graph or bottom left graph represents
Step-by-step explanation:
Step 1:
To determine which of the given graphs represents the equation , we substitute some values in the place of x.
When
Anything with an exponent of 0 will equal 1.
So the graphs on the right side cannot be the answers.
Step 2:
Now we substitute another value to determine which graph represents
When
The value of f(x) when is lesser than the value of f(x) when
So the third graph or bottom left graph represents
Answer:
Step-by-step explanation:
Given that in a recent poll 1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753.
Sample proportion =
To find 90% confidence interval we must find std error of proportion first
As per central limit theorem, sample proportion will follow a normal distribution with mean = 0.753
Std error of proportion=
90% Z critical value = 1.645
Margin of error = 1.645*0.01363 = 0.0224
Confidence interval lower bound = 0.753-0.0224=0.731
Upper bound = 0.775