Answer:
r = -2.
Step-by-step explanation:
-13r+ 20r = -14
7r = -14
r = -14/7
r = -2.
Answer:
Step-by-step explanation:
y-x=0.7
y=x+0.7, so lets plug in that into the expressions instead of y
1)
(y-x)=
x+0.7-x=
x+0.7+(-x)=
x+(-x)+0.7=
x-x+0.7=
0.7
2)
(x-(x+0.7))/((x+0.7)-x)=
(x-x+0.7)/(x+0.7-x)=
(x-x+0.7)/(x+0.7+(-x))=
(x-x+0.7)/(x+0.7+(-x))=
(x-x+0.7)/(x+(-x)+0.7)=
(x-x+0.7)/(x-x+0.7)=
0.7/0.7=
1
Answer:
b ≈ 148.5
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan68° = =
Multiply both sides by 60 to clear the fraction
60 × tan68° = b, thus
b ≈ 148.5 ( to 1 dec. place )
Answer:
y= 15x+225
Step-by-step explanation: