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2 years ago

Can someone please help. I don’t know this.

Mathematics

1 answer:

denis-greek [22]2 years ago

4 0

Answer:

3rd answer

Step-by-step explanation:

Two dice with #s 1-6

To roll a sum of 7, the 2 numbers have to add up to 7.

First die Second die

1 6

2 5

3 4

4 3

5 2

6 1

Each of those combinations adds up to 7. There are 6 of them. The total number of possibilities of rolls is 6 x 6 = 36.

Probability is favorable outcomes / total outcomes, so it's 6/36 = 1/6

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Of the coffee makers sold in an appliance store, 4.0% have either a faulty switch or a defective cord, 2.5% have a faulty swi

lukranit [14]

Answer: Hence, Probability that a coffee maker will have a defective cord is 0.376=37.6%.

Step-by-step explanation:

Since we have given that

Let A be the event of getting a faulty switch.

Let B be the event of getting a defective cord.

Here, P(A∪B) = 4% = 0.04

P(A∩B) = 0.1% = 0.001

P(A) = 2.5% = 0.025

We need to find P(B):

As we know that

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\0.04=P(A)+0.025-0.001\\\\0.04=P(A)+0.024\\\\P(A)=0.04-0.024=0.376$

Hence, Probability that a coffee maker will have a defective cord is 0.376=37.6%.

6 0

2 years ago

Plz help it due in a hour <br> And show workings

Lesechka [4]

Answer:
(8,6)

Explanation:
The middle of the 2 x coordinates, 8 and -2 is 3. The middle of the 2 y coordinates, -6 and 6 is 0. Hence (8,6)

3 0

2 years ago

Factors for x squared plus 9x plus 18

Lady_Fox [76]

It is 3-6
So (x+6)(x+3) because 6*3=18 and 6+3=9

3 0

2 years ago

Read 2 more answers

What is the square root of 9/16ths

spayn [35]

The answer is 3/4ths. If you have any questions please ask

3 0

2 years ago

Given y2 + 5y - 6 = (y + p)(y +q) find the<br> values of p and q.

finlep [7]

Answer:

p = 6, q = - 1

Step-by-step explanation:

Factor the left side and compare to right side

y² + 5y - 6

Consider the factors of the constant term (- 6) which sum to give the coefficient of the y- term (+ 5)

The factors are + 6 and - 1, since

6 × - 1 = - 6 and 6 - 1 = + 5, thus

y² + 5y - 6 = (y + 6)(y - 1)

Compare with (y + p)(y + q) , then

p = 6 and q = - 1

5 0

2 years ago