Answer:
28
Step-by-step explanation:
f(6) = -3 * 6 + 10 = -18 + 10 = -8
g(f(6)) = g(-8)
g(-8) = 
= 64 - 24 - 12 = 64 - 36 = 28
The mat adds 3 inches to each side, so the length would be 3+20 = 23 inches. The width would become 3 + 9 = 12 inches.Area = Length x width:
23 x 12 = 276 square inches
If a car travels at 5m in 0.2 seconds, you must divide 1s by 0.2s, which is 5. Multiply 5 by 5m, which is 25.
Answer:25m/s
Answer:
Pip gets £12
David gets £24
Bridget gets £24
Step-by-step explanation:
The ratio 1 : 2 : 2 is Pip : David : Bridget
Add all the numbers in the ratio together.
2+2+1=5.
Divide 60 by 5.
60÷5=12
Multiply 12 by each section in the ratio.
1×12 : 2×12 : 2×12
12 : 24 : 24.
T = 12 min, T o = 80° C, T s = 50 °C, T ( 12 ) = 60° C
60 = 50 + ( 80 - 50 ) · e^(-12k)
10 = 30 · e^(-12k)
e^(-12k) = 0.3333...
ln ( 0.333.. ) = - 12 k
- 12 k = - 1.1
k = ( - 1.1 ) : ( - 12 ) = 0.0916
Answer: D ) 0.0916
