Answer:
Step-by-step explanation:
Clue 1 :
"Percent of Decrease" = ( Final Number - Initial Number ) expressed as a percentage of the Initial Number
Clue 2 :
number X expressed as a percentage of Number Y = (X/Y) x 100 %
Good luck!
X^2/a^2+y^2/b^2=1
or
x^2/900 + y^2/169 = 1 x^2/1467^2 + y^2/736^2= 1 x^2/736^2 + y^2/1467 = 1 x^2/169 + y^2/900 = 1
Answer:
-57
Step-by-step explanation:
<h2><u>Use BOMAS</u></h2>
B- brackets
O- of
M- multiplication
A- addition
S - subtraction
-3[1+2(4+5)]
first solve what is in the brackets
(4+5) = 9
place 9 in the brackets
-3[1+2(9)]
now multiply the 2 and 9
2*9 = 18
-3[1+18)]
1+ 18 = 19
now multiply the (-3) with 19
= <u>-57</u>
Answer:
b
Step-by-step explanation:
Minimum sample size for estimating the population proportion of pine trees over 90 years old in a forest near where you live with <em>margin of error</em> no more than 2% can be calculated using the equation:
n≥ p×(1-p) × 
where
- p is the proportion of pine trees over 90 years old in a forest near where you live
- z is the corresponding z-score for the confidence level
- ME is the margin of error in the estimation (2% or 0.02)
Answer:
Yes
Step-by-step explanation:
<h3>Linear Equations</h3>
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
<h3>What is a Linear Equation?</h3>
An equation that has the highest degree of 1 is known as a linear equation. This means that no variable in a linear equation has an exponent more than 1. The graph of a linear equation always forms a straight line.
