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charle [14.2K]
2 years ago
5

What is the sum of –18 and 12? A. –6 B. –12 C. 12 D. 6

Mathematics
2 answers:
docker41 [41]2 years ago
7 0

your answer is A.-6, i think its helpful

PolarNik [594]2 years ago
6 0

Answer:

A: -6

Step-by-step explanation:

Flip around the question

what is 12 - 18

If you count the numbers in between 12 and 18

You get 6

So now just make the answer negative

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The points represented by the (x, y) coordinate pairs all lie on line "k". These are the points: (1,3), (2, 1), (3,-1). (4.-3),
hammer [34]

Answer:a

Step-by-step explanation:

Bsnanna

6 0
3 years ago
Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(3.4p-6q+6) −(3.4p−6q+6)
julia-pushkina [17]

Answer:

-(3.4p-6q+6) = -3.4p+6q-6

Step-by-step explanation:

Given

-(3.4p-6q+6)

Required

Simplify

-(3.4p-6q+6)

Rewrite as

-1(3.4p-6q+6)

-1 * (3.4p-6q+6)

Open the bracket

-3.4p+6q-6

7 0
2 years ago
In a certain city district the need for money to buy drugs is stated as the reason for 70% of all thefts. Find the probability t
torisob [31]

Answer:

9.72% probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.

Step-by-step explanation:

For each theft, there are only two possible outcomes. Either the need to buy drugs is the reason of the theft, or it is not. Each theft is independent of each other. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In a certain city district the need for money to buy drugs is stated as the reason for 70% of all thefts.

This means that p = 0.7

Find the probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.

This is P(X = 3) when n = 7. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{7,3}.(0.7)^{3}.(0.3)^{4} = 0.0972

9.72% probability that among the next 7 theft cases reported in this district, exactly 3 of them resulted from the need to buy drugs.

5 0
2 years ago
What is the slope of the line 6x + y = 24?
ValentinkaMS [17]

Answer:

-6

Step-by-step explanation:

You need to get it in Point-Slope form, or

y = mx + b

Isolate y by subtracting 6x

You are left with:

y = -6x + 24

M is the slope, so in this case, it is -6

5 0
2 years ago
Read 2 more answers
Help me please I am still confused
wel

Answer:

2x=140

x=70

Step-by-step explanation:

4 0
2 years ago
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