First of all, the first power of 'x' is the highest power in the whole equation,
so we only expect one solution.
You said that <span><u>3x+9 = 21+7x </u>
Subtract 3x from each side:
9 = 21 + 4x
Subtract 21 from each side:
-12 = 4x
Divide each side by 4 :
<u>-3 = x </u>
</span>
Answer:
red area = 7.74 in^2
Step-by-step explanation:
area of square = 6x6 = 36
radius = 1/2 diameter, radius = 3
area of circle = (3.14)(3^2) = 28.26
36-28.26 = 7.74
Answer:
The unit price for for crawfish at Shop A is $3 per pound and Shop B is also $3 per pound
Step-by-step explanation:
6/2=3
15/5=3
Answer:
Is an acute triangle
Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to

we have
G(7,3), H(9, 0), I(5, -1)
step 1
Find the distance GH
substitute in the formula



step 2
Find the distance IH
substitute in the formula



step 3
Find the distance GI
substitute in the formula



step 4
Verify what type of triangle is the polygon
we know that
If applying the Pythagoras Theorem
----> is a right triangle
----> is an obtuse triangle
----> is an acute triangle
where
c is the greater side
we have



substitute


therefore

Is an acute triangle
There is no property that can be used but you can find the answer by dividing 72 and 6