1) tan 41°= 30cm divide by y cm
y= 30 divide by tan-1 41°
Answer:

Step-by-step explanation:

Because 4.7 is the "abbreviation" for 4.70 also 4.7 is the simplified version of 4.70 kind of like a fraction you 4 70/100 simplified is 4 7/10 or 4.7.
Answer:
Step-by-step explanation:
Ones plus zero
Answer:
-2k + 6
hope its right
-2k - (-5) + 1
You should always switch the signs to their opposites if you're mutiplying a negative such as the - (-5) Hope I make sense
-2k + 5 + 1
-2k + 6