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ikadub [295]
2 years ago
10

Write an expression showing 4 less than the number j.

Mathematics
1 answer:
Svetllana [295]2 years ago
3 0

Answer:

j-4 is how you show 4 less than a number j

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I NEED HELP LIKE ASAP, IF UR CORRECT I'LL MARK U BRAINLIEST.
Reil [10]

Answer:

D

Step-by-step explanation:

The initial value is the beginning output value, or the y-value when x = 0. Therefore, since y is at 7 when x is at 0, the answer is 7.

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3 years ago
A multiple choice exam has 20 questions. Each question has 3 possible answers; there is no partial credit. Only 1 answer out of
amid [387]

Answer:To find out the theoretical probability of the case given, we need to make certain assumptions.

First, we'll assume that he'll attempt all of the questions, i.e he'll attempt all 10 questions.

Next assumption is that each option in each question is equally likely to be marked by the student.

This pretty much leads us to a binomial probability distribution.

Conditions are:

   Answers 10 questions.

   Each question has 4 options with only one correct answer and all other incorrect answers.

   Student is equally likely to pick any outcome in any given question.

   Hence, probability of choosing correct answer is 1/4 = 0.25. Probability of choosing incorrect answer is 1–1/4 = 3/4 = 0.75.

   The number of trials is 10.

   Total number of success is exactly 8 and failure is 2 amongst the 10 questions in any particular order.

Now, calculation is fairly simple.

Binomial probability distribution is such that…

P(8 correct ; 2 wrong)

= 10C8 × (0.25)^8 × (0.75)²

= 405/1048576 ≈ 3.862380981 × 10^-4 ≈ 0.000386

Step-by-step explanation:

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3 years ago
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r-ruslan [8.4K]

I think that the answer is 120 cubes

6 0
3 years ago
A Student with N600 pocket money was spent on the following; Book N50, Pen N80, Maths Set N270, Bag N150, Food N50; the angles t
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<span>Total pocket money: N600 Spent as follows: Books N50 Pen N80 Maths set N270 Bag N150 Food N50 To find: Angles that pen and food represent on pie chart. Solution: Pie is made on circle, and sum of angles of a circle is 360°. Angle that pen represent = (80/600)*360° = 48° Angle that food represent = (50/600)*360° = 30°</span>
3 0
3 years ago
Find the equation of the line using exact numbers
Katen [24]

Answer:

y = - \frac{1}{3} x + 5

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \frac{y_{2-y_{1} } }{x_{2-x_{1} } }

with (x₁, y₁ ) = (0, 5) and (x₂, y₂ ) = (3, 4) ← 2 points on the line

m = \frac{4-5}{3-0} = \frac{-1}{3} = - \frac{1}{3}

the line crosses the y- axis at (0, 5 ) ⇒ c = 5

y = - \frac{1}{3} x + 5 ← equation of line

6 0
1 year ago
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