(a) 3x=4(x-2.25) (or simplified: 3x=4x-9)
(b) 3x=4x-9
0=x-9
x=$9
(c) 3x9=27
4x9=36
36-9=27
and 27=27 therefore they spent the same and it is correct
(d) Tanya's items cost $9 each and Tony's items cost $2.25 less than this, or $6.75
Answer:a) a=22, b=11
b) m=7
, n= ![\frac{98-7\sqrt{2} }{2}](https://tex.z-dn.net/?f=%5Cfrac%7B98-7%5Csqrt%7B2%7D%20%7D%7B2%7D)
Step-by-step explanation:
You should use trigonometry ratios as required and then you should use pythagoras theorem
In a) cosine(30°)= base/hypotenuse,
where 11√3 is the base
"a" is hypotenuse and
"b" is perpendicular
from this you can find the value of perpendicular then you should use pythagoras theorem to find the value of hypotenuse
pythagoras theorem is
base²+perpendicular²= hypotenuse²
Same is applied on (b) right triangle as, sine(45°)=perpendicular/hypotenuse
ERROR: You forgot your attachment. Ask a new question and try again. :/
Answer:
1
Step-by-step explanation:
I will assume you want to find the slope [ y2-y1/x2-x1 ]
-7-(-3)/4-8
-4/-4
1
Best of Luck!