N would be equal to -1, so the last pair of parentheses would be (6,-1).
Answer:
a. 100 mph
b. 500 mph
Step-by-step explanation:
a.
Let the speed of Lindbergh's plane be x.
Today's planes are 5 times faster, so their speed is 5x.
Today's planes speed is 400 mph faster than Lindbergh's speed.
x + 400 = 5x
5x = x + 400
4x = 400
x = 100
Lindbergh's speed was 100 mph
b. 5x = 5 * 100 = 500
Today's planes fly at 500 mph
Answer:
125 cups can hold 49.5 liters of water.
Step-by-step explanation:
The volume of the cup will tell how much water is needed to fill each cup.
The volume of the cup can be determined by the formula
V= base area* height
V= πr²* h
V= 22/7 (3)² (14)
V= 396cm³
125 cups can hold 125 * 396 cm³= 49500cm³
But 1 cm³= 0.001 Liters
Therefore = 49500*0.001= 49.5 liters
125 cups can hold 49.5 liters of water.
Answer:
The Third one
Step-by-step explanation:
Because -64/33 == -1 31/33
The change is decay and the percentage rate of decrease will be 95%.
An exponential function is a function where a number is raised to the variable i.e. base is raised to the exponent times.
Here given the exponential function is y= 4300(0.042)ˣ
Now we have to identify if the change in exponential function represents growth or decay, and have to determine the percentage rate of increase or decrease.
Here in the exponential function, the base is less than 1 so the change is decay.
The equation represents exponential decay because the decay factor is lesser than 1.
The general form of the exponential equation is:
y(x)= a(1-r)ˣ such that r is the decay.
equating with the equation
y= 4300(0.042)ˣ
a= 4300
and 1-r=0.042
⇒r= 1-0.042
⇒r= 0.958
the perecentage of decay will be r*100= 0.958*100= 95%
Therefore the change is decay and the percentage rate of decrease will be 95%.
Learn more about exponential function
here: brainly.com/question/2046253
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