From the given information, a exists jointly proportional to b and c.
then 
Therefore, the value of a exists 2.
<h3>
What is the value of a?</h3>
Given, a exists jointly proportional to b and c.

Taking K as the constant of proportionality.
a = K b c
For b = 8 and c = 9, the value of a = 4
4 = K(8)(9)
4 = 72 K
Dividing the equation by 72, we get

Using the value of K in the equation:

Substitute the values of b = 2 and c = 18, in the above equation

a = 2
Therefore, the value of a exists 2.
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Answer:
Correct option is A
Step-by-step explanation:
Given some statements we have to choose the correct statement.
A. Square BCDF is a rectangle.
As we know, all the properties of rectangle satisfied by square. Therefore, we say that all squares are rectangles. hence, Square BCDF is a rectangle is true statement.
B. Rectangle GJKM is a square.
As explained in above, all the properties of rectangle satisfied by square but its converse is not true i.e all rectangles are not square. Hence, Rectangle GJKM is a square is not always true.
C. Quadrilateral STPR is a trapezoid.
All the properties of trapezoid are not satisfied by all quadrilateral hence, not always true.
D. Parallelogram ABCD is a rhombus
All the properties of rhombus are not satisfied by parallelogram like all sides of rhombus are congruent but parallelogram has only opposite sides congruent. hence, not always true.
Correct option is A.
Answer:
4
Step-by-step explanation:
Pick two points on the line
(0,-5) and (1,-1)
We can find the slope using
m = (y2-y1)/(x2-x1)
= ( -1 - -5)/(1 - 0)
(-1+5)/(1-0)
4/1
= 4
Answer:
D
Step-by-step explanation:
the equation tells you that 1 yard is 3 feet
so when you move one unit to the right on the x-axis, you should move three units up on the y-axis