Answer:
828
Step-by-step explanation:
Missing leg of triangle:
√15²-12²= √225-144=√81=9
Triangle faces= 2*1/2*12*9= 108
Base= 20*9= 180
Front face= 20*15= 300
Back face= 20*12= 240
Total= 108+180+300+240= 828
Second choice
Answer:
the answer is mx +B plus the quradratic formula
Answer:
Fahrenheit = 50°F
Step-by-step explanation:
Equation: F = ⁹/₅C + 32, C = 10
Plug in: F = ⁹/₅(10) + 32
Multiply: F = 18 + 32
Add: F = 50
Answer:
77
Step-by-step explanation:
Let's let the unknown number be x.
Supplementary angles add up to a total of 180 degrees. Since we already know one angle is 103, this means that:

Subtract 103 from both sides:

So, the measure of its supplementary angle is 77 degrees.
And we are done!