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JulsSmile [24]
3 years ago
15

Which is the value of the expresson?​

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
3 0
The solution to your problem is 8 (:

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Five students, adriana, ben, chandra, diana, and ernesto, would each like one of the four spots at the regional science fair. Th
krok68 [10]

The theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

<h3>What is theoretical probability?</h3>

Theoretical probability of an event is the ratio of number of favourable outcome to the total expected number of outcome of that event.

Five students, Adriana, Ben, Chandra, Diana, and Ernesto, would each like one of the four spots at the regional science fair.

Their names are placed in a hat, and four names are chosen at random to decide who attends the fair.

  • The total number of names are 5.
  • The total number of names chosen are 4.

The total number of ways 4 names can be taken out from 5 names is,

^5C_4.

Here one spot needs to be fixed for Chandra. Now the total number of outcome remain 4 and favourable outcome remain 3.

Thus, the number of ways 4 names can be taken out such that it contains the name Chandra is

^4C_3.

The theoretical probability that Chandra will be chosen as one of the science fair participants is,

P=\dfrac{^4C3}{^5C4}\\P=\dfrac{4}{5}\\P=0.8\\P=80\%

Thus, the theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

Learn more about the theoretical probability here;

brainly.com/question/8652467

#SPJ1

5 0
2 years ago
What is the slope of the line
rusak2 [61]
The slope of the line is 2

The formula for finding slope using two coordinate pairs is y-y
——-
x-x
In this case, the y values are 10 and 2, and the x values are 6 and 2. If we plug these into our formula the equation is 10-2
———
6-2
10-2 is 8 and 6-2 is 4. So 8 divided by 4 would equal 2
6 0
2 years ago
The 12 members of Dante’s hiking club shared 176 ounces of trail mix equally. How many ounces of trail mix did each member recei
Maurinko [17]
There are 176 ounces to be divided by 12
176÷12 = 14.6667
4 0
3 years ago
Find all solutions to the equation.<br> cos^2 x + 2 cos x + 1 = 0
Helen [10]

Answer:

x = \pi  +2\pi n

Step-by-step explanation:

Radian:  \pi  + 2 \pi n

Degree: x = 180 degree, 360 degree

7 0
3 years ago
A shirt was originally priced at $35. The store is having a 40% off sale. How much will you pay for the shirt after the discount
xz_007 [3.2K]

$35 x 10% = 3.5

3.5 x 4 = 14

35 - 14 = 21

You will pay $21 after the discount

8 0
3 years ago
Read 2 more answers
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