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scZoUnD [109]
2 years ago
10

While reading the newspaper Cindy saw a circular graph that showed the number of A's in the senior English class as 20%, the num

ber of B's in class was 30%, the number of C's was 40% and the number of failures was 10%. In picking one student at random, what is the probability that the student earned a C in this class
A: 1/10

B:1/5

C:1/3

D:2/5
Mathematics
1 answer:
STatiana [176]2 years ago
6 0

Answer:

c= 1/3

Step-by-step explanation:


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MULTIPLE STEP-writing equations in slope form/intercept form
mr Goodwill [35]

Answer:

y=x+8

Step-by-step explanation:

y= x+8

8 is your y intercept

and your slope is 1 but it's x

6 0
2 years ago
Plz help me!!!
Nadya [2.5K]
To solve this we are going to use the exponential function: f(t)=a(1(+/-)b)^t
where
f(t) is the final amount after t years
a is the initial amount
b is the decay  or grow rate rate in decimal form
t is the time in years

Expression A 
f(t)=624(0.95)^{4t}
Since the base (0.95) is less than one, we have a decay rate here.
Now to find the rate b, we are going to use the formula: b=|1-base|*100%
b=|1-0.95|*100%
b=0.05*100%
b=5%
We can conclude that expression A decays at a rate of 5% every three months.

Now, to find the initial value of the function, we are going to evaluate the function at t=0
f(t)=624(0.95)^{4t}
f(0)=624(0.95)^{0t}
f(0)=624(0.95)^{0}
f(0)=624(1)
f(0)=624
We can conclude that the initial value of expression A is 624.

Expression B
f(t)=725(1.12)^{3t}
Since the base (1.12) is greater than 1, we have a growth rate here.
To find the rate, we are going to use the same equation as before:
b=|1-base|*100%
b=|1-1.12|*100
b=|-0.12|*100%
b=0.12*100%
b=12%
We can conclude that expression B grows at a rate of 12% every 4 months.

Just like before, to find the initial value of the expression, we are going to evaluate it at t=0
f(t)=725(1.12)^{3t}
f(0)=725(1.12)^{0t}
f(0)=725(1.12)^{0}
f(0)=725(1)
f(0)=725
The initial value of expression B is 725.

We can conclude that you should select the statements:
- Expression A decays at a rate of 5% every three months, while expression B grows at a rate of 12% every fourth months. 

- Expression A has an initial value of 624, while expression B has an initial value of 725.

8 0
2 years ago
Help please -<br> |2p-3| = 17
masha68 [24]
2p-3=12p = 20
the answer is
p = 18
8 0
2 years ago
Just before her party starts, Jane fills a cooler with 80 cups of ice. She also starts filling glasses with ice, 0.8 cups each.
Fofino [41]

The equation that shows how the total number of cups of ice used, y, depends on the number of glasses filled, x, is y = 0.8x + 80

<h3>Linear function</h3>

Filling the cooler is an illustration of a linear function

A linear function is represented as: y = mx + b

Where

  • m represents the slope/rate
  • b represents the y-intercept/the initial value
  • x and y are the variables

<h3>The equations</h3>

By comparison, we have the following parameters

  • m =0.8 --- the amount of cups per ice
  • b = 80 ---- the initial amount of cup

So, the equation that represents this scenario is

y = 0.8x + 80

Read more about linear functions at:

brainly.com/question/14323743

5 0
2 years ago
A point located at (0, -6) is the same distance from 0 as the point located at (0, 6).
torisob [31]
True. because it is still 6 away from 0 no matter what way you go
7 0
3 years ago
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