Answer:
whatpower7(49) = 2
Step-by-step explanation:
given data
WhatPower7(49)
to find out
Evaluate the expressions WhatPower7(49)
solution
as we know that whatpower mean exponent of equation so we get by given equation
we know whatpower7(49) = 2
because
we know that 7 × 7 = 49
so that 7² = 49
so that the exponent is here 2 for 7 that become 49
so correct answer is 2
F (9)= 5(9) -16
45-16
f(9)=29
- We are to find the time (number of minutes) is would take for 23 mg of the substance to be remaining.
- The formula for time is written as:
t = [t1/2 x In(Nt/No)] / In 2
where:
t1/2 = Half life = 4 minutes
No = Initial quantity of the sample = 90 mg
Nt = Amount of the sample left = 23 mg
t = time elapsed = ?
Hence,
t = [4 x In (23/90)] / -In 2
t = 7.8731645610906 minutes
Approximately to the nearest hundredth = 7.87 minutes
Therefore, there will be 23mg of substance remaining after 7.87 minutes.
To learn more, visit the link below:
brainly.com/question/16624562
Answer:
{ 6, 9, 16, 18 }
Step-by-step explanation:
To find the range substitute the values of x from the domain into the equation for y, that is
x = - 3 : y = - 3 + 9 = 6
x = 0 : y = 0 + 9 = 9
x = 7 : y = 7 + 9 = 16
x = 9 : y = 9 + 9 = 18
The y values are the range of the relation, that is
y ∈ { 6, 9, 16, 18 }
