<u>Answer:</u>
slope =
<u>Step-by-step explanation:</u>
To find the slope of a line given the coordinates of two points on it, we can use the following formula:
,
where and are the known coordinates.
In this question, if we consider to be , and to be we can substitute the values into the formula and find the slope:
=
=
Answer:
b. x³ +2x² -3x -6
Step-by-step explanation:
For an odd-degree polynomial, the constant term is the opposite of the product of the roots. Here that means we're looking for a polynomial with the constant ...
... -(-√3)(√3)(-2) = -6
There is only one choice.
Remark
Whatever the original price, he gets 70% in the first instance.
He gets 80% in the second instance.
He gets 90% in the third instance
His total income is 240 dollars.
Let the original price be x
Equation
70%x + 80%x +90%x = 240
70% = 0.7 ; 80% = 0.8 ;90% = 0.9
Solution
0.7x + 0.8x + 0.9x = 240 Take out x as a common factor and add the decimals.
x (0.7 + 0.8 + 0.9) = 240
2.4x = 240 Divide both sides by 2.4
x = 240/2.4
x = 100
So the watches should have brought in 3*100 = 300 dollars.
He only brought in 240 dollars.
He lost 300 - 240 = 60 dollars.
The answer is B.
divide the annual rate by four because there are four quarters in a year
X is 65 because there is a theorem saying that when a transversal crosses two parallel lines, the corresponding angles are congruent. Since x is the other side of the corresponding angle of 115, you have to do 180-115, since a straight line is 180°.