secA=√2
secA=sec45
A=45°
3cos²45+5tan²45/ 4tan²A-sin²45
= 3(1/√3)²+5(1)² / 4(1)²-(1/√2)²
=3/2+5/4-1/2
=13/7
Answer:452.16m^2
Step-by-step explanation:
C=2πr
75.36m=2×3.14×r
75.36m=6.28r
r=12m
Area=πr^2
A=3.14×12m×12m
A=452.16m^2
$318.75
multiply 25.5 by 12.5 which equals 318.75.
to know where to put the decimal, you count the numbers to the right of the decimal point. in this equation youre multiplying 25.5 and 12.5. there are 2 numbers to the right of the equation so in your answer, there should be 2 numbers to the right of the decimal.
Y= -x - 7/2. Y is equal to Negative X Minus 7 over 2.
