Answer:
x=-7
Step-by-step explanation:
The sum of the angles of a triangle are 180 degrees
40 + x+57 + 90 =180
Combine like terms
187 +x = 180
Subtract 187 from each side
187-187 +x = 180-187
x = -7
Answer:
Mean temperature for the first 8 days was 
Step-by-step explanation:
Mean = 
Best Regards!
Sice you are multiply by zero the answer is 0 because any number time 0 is 0. 3+4 =7 then times 0
V of cylinder = πr²h
h=V /(πr²)
h=27/π -exact value
h=1323/(3.14*(7)²)= 8.6 cm - approximate value
No because a measurement for triangle must equal 180 in total in the measurement you give me equals 176
