Answer:
0.002M
Step-by-step explanation:
2.7= -log(H^+)
-2.7=log(H^+)
10^-2.7 M=H^+
0.0002M=H^+
Answer:
10.11
Step-by-step explanation:
Answer:
360°
75° + 15t
Step-by-step explanation:
Given that the initial temperature of the oven is 75° and the temperature will increase at a rate of 15° per minute, it means that the temperature T after x minutes will be given as
T = 75 + 15x
Hence after 19 minutes, the temperature will be
= 75 + 15(19)
= 75 + 285
= 360°
After t minutes, the temperature will be
= 75° + 15t
Answer:
x = -
Step-by-step explanation:
given the equation
(x - 2) = 4x
multiply both sides by 5 to eliminate the fraction
2(x - 2) = 20x
2x - 4 = 20x ( subtract 2x from both sides )
- 4 = 18x ( divide both sides by 18 )
x = - = -
The value for r is mathematically given as
r<-82
This is further explained below.
<h3>What are inequalities?</h3>
In mathematics, an inequality is a relation that compares two numbers or expressions in a way that is not equal. The most common use is doing a size comparison between two numbers on a number line.
Generally, eighty-two less than r is less than −164 is mathematically given as
r-82 <-164
r<-82
Therefore
r<-82
Read more about inequalities
brainly.com/question/20383699
#SPJ1