Y = x - 7 ---------- (1)
5x + 2y = 7 ------ (2)
Sub (1) into (2):
5x + 2(x -7) = 7
5x + 2x - 14 = 7
7x - 14 = 7
7x = 7 + 14
7x = 21
x = 3 ----- -sub into (1)
y = x - 7
y = 3 - 7
y = -4
Ans: x = 3, y = -4
6. any thang less than 90 degress
7. only 90 degress
8.any thang above 90 but not 180
9. only 180
10. the sum of 2 angels has to make 90 degress
11. the sum of 2 angles has to make 180 degress
Expression: x divided by 3
Scale height: 19/3 = 6.33333333
Sq root of 64 =8 so sq root of 65 must be just a little larger than 8
<span>Therefore answer is between 8 & 9
</span>
Well the radian is the measure of the radius
this line measure is then ligned up to the circumference
mearuse of 1 raidan is always equal to the measure of the radius therfor the true statements are
ratio of arc legnth to r is always equal to 1
I'm not sure what 'if the measure of is'
but I think the answer is
if the measure of is 1 radis, than the arc legnth is r since r reaprensents radius
so first and third choice are correct