Answer:C
Step-by-step explanation:
Answer:
× B + A
Step-by-step explanation:
Given equations are x + y = 12 ---------(A)
and equation y - x = 6 -------------(B)
To eliminate the variable x we will multiply equation A by
and add it to equation B.
In other words, the expression that we will adopt to eliminate the variable x will be × B + A
Answer:
Step-by-step explanation:
As we know that:
Sum of the measure of all interior angles of a triangle is always 180°.
Answer:
The answer is true.
Step-by-step explanation:
A polar equation describes the relation between r and θ. Here 'r' is the distance from the origin to a point curve. 'θ' is the angle made by a point on a curve, the pole, and the positive x-axis.
So, the statement - Polar equations can describe graphs as functions, even when their equations in the rectangular coordinate system are not functions - is true.
b. How many trombones are in the orchestra? Please help, I'm in 8th grade! (:Thank youu..
Answer:
Givens
So, if there are 9 violas, the number of trombones is three, because 9 violas represents a triple proportion, which means we need to multiply by 3 to find the number of trombones according to the given proportion.
The expression that gives the number of trombones is
The number of trombones is 3, there are 3 trombones while there are 9 violas.