Answer:
m = 1/2
Step-by-step explanation:
Use the slope formula to find the slope <em>m</em>.
y2 - y1 / x2 - x1
8 - 4 / 5 - (-3) two negatives turn into positive.
8 - 4 / 5 + 3
4 / 8 = 1/2
Answer:
option 2. 9.3+b=14.5
Step-by-step explanation:
I hope that the answer is clear
1/5+ (-4) is the same as 1/5 - 4
1/5-20/5
-19/5
The answer is one solution
1 + tan ² Ф=sec²Ф
1+(12/5)²=sec²Ф
169/25=sec² Ф
sec Ф=⁺₋√(169/25)=⁺₋13/5
sec Ф=1/cos Ф ⇒cosФ=1/sec Ф
cos Ф>0 ⇔ sec Ф>0 ⇔ sec Ф=+ 13/5
cos Ф=1/secФ
cos Ф=1 / 13/5=5/13
we can calculate the sin Ф, with this method.
sin²Ф + cos²Ф=1 ⇒ sin Ф=⁺₋√(1-cos² Ф)
sin Ф=⁺₋√[1-(5/13)²]=⁺₋12/13
like cos Ф>0 and tan Ф>0 ⇒ sin Ф>0 ⇒sin Ф=12/13
answer: d.12/13
other method
tan Ф=sin Ф / cos Ф
12/5=sin Ф / 5/13
sin Ф=(12/5)*(5/13)=12/13
answer: d.12/13
