Answer:
a=3
Step-by-step explanation:
This should be very simple, just substitute xy and y for 5 and 7 respectively, so 5a-2*7=1, or 5a-14=1, or 5a=15, if we divide both sides by 5, we get a=3
<span>sin θ = x/10
</span><span>θ = sin^-1 (x/10)
</span><span><span>θ </span>
</span>
Answer:
4)55
5)23
Step-by-step explanation:
4) x=21+34=55
5)100-51=2x+3
2x = 46
x=23
ANSWER

or

EXPLANATION
We want to find the equation in point-slope form of a line that passes through the points (3, −5) and (−8, 4).
The point-slope form is given by;

where

is the slope of the line.
If

The point-slope form is

On the other hand, if

Then the point-slope form is,

These two equations are the same when simplified.