Solve each system by elimination 5x + y - 2z = -12
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
Round up to highest place value
Highest place value here is thousand.
So:
, when approximated
Highest place value here is ten thousand.
So:
, when approximated
Highest place value here is ten thousand.
So:
when approximated
Highest place value here is ten thousand.
So:
when approximated
Highest place value here is ten thousand.
So:
when approximated
Answer:
D
Step-by-step explanation:
gradient is change in y/change in x
gradient of UV = 14-8/12+4=3/4
use equation y=mx+c where y is the y coordinate, m is the gradient, x is the x coordinate and c is the y intercept
use one of the coordinates of U or V, I'll use (4,8)
c is 5
the equation for UV is
insert each X coordinate given in the question to see if it gives the same y coordinate
when x is 20, y is also 20 so the answer is D
Hope this helps you.
