Answer:
m∡ZA = 51°
m∡ZB = 39°
Step-by-step explanation:
∡ZB = 'b'
∡ZA = '12 + b'
b + 12 + b = 90
2b + 12 = 90
2b = 78
b = 39
12 + 39 = 51
Answer:
In order to understand exponential equations with a whole number and a fraction, we have to revisit the definition.
Exponentiation is just repeated multiplication. For instance, if we have 2^3, we can see that 2 * 2 * 2 = 8. The number keeps getting bigger.
Likewise, if we have (1/2)^3, 1/2 * 1/2 * 1/2 = 1/8. The number keeps getting smaller. Notice a pattern?
When we have a number greater than 1 as a base in an exponential function, the number keeps growing. This is called exponential growth.
In contrast, whenever we have a number less than 1 as a base (i.e. a fraction), the number keeps getting smaller. This is called exponential decay.
Hope this helps.
Answer:
Step-by-step explanation:
From the problem statement, we can setup the following equation:
where 
is the monthly salary. Solving for will give us the answer:
We know that : 1 kg = 2.2 pounds.
x = 2.81 * 2.2 = 6.182 pounds
s = 1.32 * 2.2 = 2.904 pounds.
Answer:
The mean increase: x = 6.182 pounds.
The standard deviation: s = 2.904 pounds.
Answer:
B (x-7<-6)
Step-by-step explanation:
x < 1
