Answer:
its A
Step-by-step explanation:
not gonna explain it cause I dont have to ._. plus it wasnt that hard
Answer: 12
pls thank me and branliet
Step-by-step explanation:
Answer:
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Step-by-step explanation:
If you ever swam in a pool and your eyes began to sting and turn red, you felt the effects of an incorrect pH level. pH measures the concentration of hydronium ions and can be modeled by the function p(t) = −log10t. The variable t represents the amount of hydronium ions; p(t) gives the resulting pH level.
Water at 25 degrees Celsius has a pH of 7. Anything that has a pH less than 7 is called acidic, a pH above 7 is basic, or alkaline. Seawater has a pH just more than 8, whereas lemonade has a pH of approximately 3.
Create a graph of the pH function either by hand or using technology. Locate on your graph where the pH value is 0 and where it is 1. You may need to zoom in on your graph.
The pool maintenance man forgot to bring his logarithmic charts, and he needs to raise the amount of hydronium ions, t, in the pool by 0.50. To do this, he can use the graph you created. Use your graph to find the pH level if the amount of hydronium ions is raised to 0.50. Then, convert the logarithmic function into an exponential function using y for the pH.
The pool company developed new chemicals that transform the pH scale. Graph the parent pH function p(t) = −log10t and the transformations below on the same graph. Send the graph to your partner. Your partner will explain which transformation results in a y-intercept and why. You may graph by hand or using technology. Use complete sentences.
p(t) + 1
p(t + 1)
−1 • p(t)
Image by goodtextures: http://fav.me/d2he3r8
p(t)=-log(t)
p(.5)=-log(.5)= 0.3
y=-log ^(0.5)
10^-y= 0.5
10
p(t)+1
Red line on graph, this transformation has shifted up by 1. This translation doesn't result in a y-intercept.
p(t+1)
Blue line on graph, this transformation is shifting to the left by 1. This translation results in a y-intercept because it crosses the y-axis.
<span>-1 p(t) </span>
Based on the above scenario, an equation that shows how much Gwen paid. The equation for Gwen is y = 100 + 10x
- The equation for Tristan is y = 12.5x
- The equation for Keith is y = 10x.
<h3>What is the
equation about?</h3>
Since Gwen burns about 10 cal/min. THen she had used up 100 calories if Tristan and Keith began ar (Y g=100 if x=0)
Then Y(g)= 10x + 100
Since Tristan is known to burns 125 cal in 10 minutes always, then one can write her own as 12.5 cal every minute.
Therefore Y (t) = 12.5x
Since Keith burns 300 calories in 30 min always, or 10 calories in every minute.
Then Y (k) = 10x
The general function of y:
y=10x +100 + 12.5x + 10x
y = 32.5x + 100
Therefore, Based on the above scenario, an equation that shows how much Gwen paid. The equation for Gwen is y = 100 + 10x
- The equation for Tristan is y = 12.5x
- The equation for Keith is y = 10x.
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