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IRISSAK [1]
4 years ago
14

PROBABILITY PROBLEM! NEED HELP AND EXPLAIN/SHOW WORK

Mathematics
1 answer:
SCORPION-xisa [38]4 years ago
8 0
10 + 5 + 1 = 16 - all balls
The probability that the first ball is red:
P(R)=\dfrac{10}{16}=\dfrac{5}{8}
The probability that the second ball is black:
P(B)=\dfrac{1}{15}
Together:
P(R)\cdot P(B)=\dfrac{5}{8}\cdot\dfrac{1}{15}=\dfrac{1}{24}
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The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:
Leya [2.2K]

Answer:

Step 1: 8 + 16x Step 2: 4(4) + 4(12x) Step 3: 4(4 + 12x) Step 4: Dimensions of the rectangle are 4 and 4 + 12x In which step did the student first make an error and what is the correct step? Step 3; 4 + (4 + 12x) Step 3; 4 + (4 ⋅ 12x) Step 2; 4(2) + 4(4x) Step 2; 4(2) + 4x(2)

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2 years ago
What term refers slope
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3 years ago
Which number line represents the solution set for the inequality -4(x + 3) S-2 - 2x?
Basile [38]

Answer:

Which number line represents the solution set for the inequality -4(x + 3) S-2 - 2x?

-7 -6 -5 -4 -3 -2 -1 0

1

2

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-7 -6 -5 -4 -3 -2 -1 0

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Step-by-step explanation:

5 0
3 years ago
6.2megagrams/hectoliter to kilograms/deciliter
lesya [120]

Answer:

6.2 kilograms/ deciliters

Step-by-step explanation:

megagrams to kilograms

1 megagram = 1000 kilograms

hectoliter to deciliter

1 hectoliter = 1000 deciliter

Using conversion factors

6.2megagrams      1000 kilgrams         1 hectoliter

---------------------- * ----------------------- * -------------------------

hectoliter                  1 megagram       1000 deciliters

Canceling like terms

6.2 kilograms/ deciliters

6 0
3 years ago
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hichkok12 [17]

Answer:

lower than Amanda:  816 students

Step-by-step explanation:

An equivalent way in which to state this problem is:  Find the area under the standard normal curve to the left (below) 940.

Most modern calculators have built in distribution functions.

In this case I entered the single command   normalcdf(-1000,940, 850, 100)

and obtained 0.816.

In this particular situation, this means that 0.816(1000 students) scored lower than Amanda:  816 students.

6 0
2 years ago
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