Using it's formula, it is found that Val's margin of error is of 9.8 pounds.
<h3>Margin of error:</h3>
The margin of error is given by the following equation:
In which:
- s is the standard deviation.
In this problem:
- The standard deviation is of 50, hence
.
- Val weighed 100 cows, hence
.
Then:
Val's margin of error is of 9.8 pounds.
You can learn more about margin of error at brainly.com/question/14510808
That’s the definition of that is what you needed
Answer: c
Step-by-step explanation:
Multiply the diameter by pi. You got it right
If you factor it, you can get an equation that is equivalent. So take out a 6. that leaves you with 6(8+3x)
Answer:
x = - 5, x = - 3
Step-by-step explanation:
Given
x² + 15 = - 8x ( add 8x to both sides )
x² + 8x + 15 = 0 ← in standard form
Consider the factors of the constant term (+ 15) which sum to give the coefficient of the x- term (+ 8)
The factors are 5 and 3, since
5 × 3 = 15 and 5 + 3= 8, thus
(x + 5)(x + 3) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x + 3 = 0 ⇒ x = - 3
