The 90% confidence interval is (70 - 4, 70 + 4). The margin of error is 4%.
X=-1 is the answer. Hope that helps!
Answer:
A
Step-by-step explanation:
the standard form of a quadratic equation is
ax² + bx + c = 0 : a ≠ 0
obtain (5 + x)(5 - x) = 7 in this form by expanding the factors
25 - x ² = 7 ( subtract 7 from both sides )
18 - x² = 0 ( multiply through by - 1 )
x² - 18 = 0 ← in standard form
with a = 1, b= 0 and c = - 18 → A
Answer:
Factor is a number that can be multiplied with a particular number to obtain another number. Conversely, multiples are the product, which is reached after multiplying the number by an integer. The number of factors of a particular number is limited, but the number of multiples of a given number is endless.
Step-by-step explanation:
First, we can start off with a fraction:
9/36 = 1/4
Now that we have this fraction, we multiply by 25:
25/100
This can be changed into a percent:
25%
100 - 25 = 75
25% is alcohol and 75% is water
