7x^2 + 3
7(4)^2 + 3
7(16) + 3
112 + 3
115.
Answer:
There was 60% discount on the cow.
Step-by-step explanation:
Discount can be calculated by dividing the latest price by the original price and multiplying by 100.
Thus,
percentage discount = 15/25 × 100
= 0.6 × 100
= 60%
Thus, there was 60% discount on the cow.
Step-by-step explanation:
first step is to find the gradient of the line which "m" on the equation
gradient formula is y2 - y1 ÷ x2 - x1 = -½ as shown on the picture we substituted those points given
2nd step is to substitute on the equation y=mx+c
m= -½
y= 3 (you can choose any from those given points but in my case I chose point A)
x= -2
c= ? only unknown variable so we can can calculate it
substitute as shown on the picture to get c= 2
therefore our equation of the line will be y= -½x+2
Answer:
a) 
b) 
Step-by-step explanation:
Since
, through the Alternate Angle Theorem,
. We can solve for x by setting up an equation where both angles are equal to each other:

Now plug in x for both of the formulas to get their angles:


Answer:
It's the last one. We know it's to the right because the -8 is in the exponent and also, it's -8 not +8.