Answer:
D
Step-by-step explanation:
a number expressed in standard form is
a × 
: 1 ≤ a < 10 and n is an integer
given
(7.5 × 
)(2 × 10³)
= 7.5 × 2 × 
= 15 × 
= 1.5 × 
×
= 1.5 × 
= 1.5 × 
You'll actually need to graph for the first segment
but the second part can be solved with algebra
The equation of the line is y(x)=-x
if we test the co0ordinates we can find if the point lies on the line
(5,5)
y(x)=-x
Using the x co-ordinate
y(5)= -5
y=-5
Leaving us with (5,-5)
Because (5,-5) is not (5,5)
This is not a point on the line
The slope of the line is -1
Add all the sides together
7.2+14.8+16.1+18 = 56.1
You’re answer is 21
7(3)= 21 I hope I’m right :))
