Answer:
17250
Step-by-step explanation:
Answer:
im pretty sure #9 is just y=7x... it should be parallel with y=7x-3 since it has y intercept of 0 rather than -3.
Answer:

Step-by-step explanation:
Since we are in quadrant 2, sine is positive. Since sine is positive and cosine is negative, then tangent is negative.
Now I'm going to find the sine value of this angle given using one of the Pythagorean Identities, namely
.
If given
, then we have
by substitution of
.
Let's solve:
for
.

Subtract 4/9 on both sides:

Simplify:

Square root both sides:



===========

Multiplying top and bottom by 3 gives:

I'm going to move the factor of -1 to the top:

Answer:
y-intercept form of that equation:
y=-2/5x+b
1=-2/5(-3)+b
1=6/5+b
b=-1/5
y=-2/5x-1/5
standard form:
2/5x+y=-1/5
srry im too busy rn so i couldnt explain very well :/
Step-by-step explanation:
I think it is not finished you need to tell me want b means.