Answer:
Graph A
Step-by-step explanation:
A directly proportional relationship must create a straight line that goes through the origin (0,0) ( note that the slope can be negative or positive in a proportional relationship. )
All graphs show a straight line going through the origin except Graph A.
Graph A shows a straight line however that line does not go through the origin therefore it is not a proportional relationship
Answer:
The answer is 493.3
Step-by-step explanation:
6.72 x 12.7 x 5.78 = 493.28872
And 493.28872 rounded to the nearest tenth is 493.3 because the original number in the tenth place is 2 and then the digit before that is 8 which in this case is your rounding digit. Round up If the number is greater than 5 and round down if its less than 5. In this case its greater than 5 to that leaves you with 28 so now you have 493.28, 28 rounded to the nearest tenth is 30 and just take the 0 away, as if it didn't exist.
The car can go exactly 271.3333333333333 feet per second. you are welcome.
Answer:
The values of 
and 
are 2 and 150º.
Step-by-step explanation:
The complete statement is:
<em>Find </em><em> and </em><em> such that </em>
<em>. </em>
We proceed to use the following trigonometric identity:
(1)
By direct comparison we derive these expressions:
(2)
(3)
By dividing (2) by (3), we have the following formula:
The tangent function is negative at second and fourth quadrants. That is:
There are at least two solutions:
, 
And the value of :
The values of and are 2 and 150º.
Answer:
-3
Step-by-step explanation:
-x+8x=-21
7x=-21
7x/7=-21/7
x=-3
