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3 years ago

What is 6 + (-3) + 12 = ?

Mathematics

2 answers:

Alchen [17]3 years ago

8 0

Answer : 15

6 + (-3) also equals to 6-3 which is = 3
Then 3 + 12 is 15

Igoryamba3 years ago

7 0

Answer:

The answer is 15 Also youwelcome

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United Blood Services is a blood bank that serves more than 500 hospitals in 18 states. According to their website, a person wit

Anna11 [10]

Answer:

a) 0.06 = 6% probability that a person has both type O blood and the Rh- factor.

b) 0.94 = 94% probability that a person does NOT have both type O blood and the Rh- factor.

Step-by-step explanation:

I am going to solve this question treating these events as Venn probabilities.

I am going to say that:

Event A: Person has type A blood.

Event B: Person has Rh- factor.

43% of people have type O blood

This means that $P(A) = 0.43$

15% of people have Rh- factor

This means that $P(B) = 0.15$

52% of people have type O or Rh- factor.

This means that $P(A \cup B) = 0.52$

a. Find the probability that a person has both type O blood and the Rh- factor.

This is

$P(A \cap B) = P(A) + P(B) - P(A \cup B)$

With what we have

$P(A \cap B) = 0.43 + 0.15 - 0.52 = 0.06$

0.06 = 6% probability that a person has both type O blood and the Rh- factor.

b. Find the probability that a person does NOT have both type O blood and the Rh- factor.

1 - 0.06 = 0.94

0.94 = 94% probability that a person does NOT have both type O blood and the Rh- factor.

6 0

2 years ago

Which of the following inequalities is not true?

Lemur [1.5K]

Answer:

$| - 9| = |9|$

This is because modulus number will be always positive

Hope this is correct and helpful

HAVE A GOOD DAY!

4 0

2 years ago

Identify an equation in point-slope form for the line perpendicular to

Zigmanuir [339]

Answer:

perp. : 1/3= m

y + 8 = 1/3(x -4): answer is c

y + 24/3 = (1/3)x - 4/3

y = (1/3)x - 28/3

Step-by-step explanation:

answer is c

8 0

2 years ago

In the summer of 2014, the average listing price for homes for sale in the Hollywood Hills was $2,663,995.

Wewaii [24]

Answer:

monthly payment: $15,903.61
interest: $2,368,664.10

Step-by-step explanation:

a) The loan amount is 90% of the price shown, so is ...

0.90 × $2,663,995 = $2,397,595.50

The monthly loan payment is given by the amortization formula:

A = P(r/12)/(1 -(1 +r/12)^(-12t))

A = $2,397,595.50(0.0525/12)/(1 -(1 +0.0525/12)^(-12·30))

A = $13,239.61

The monthly escrow payment will be 1/12 of the annual amount:

0.012 × $2,663,995 / 12 = $2664.00

So, the total monthly payment on the house will be ...

$13,239.61 +2664.00 = $15,903.61

b) The sum of monthly loan payments is ...

$13,239.61 × 360 = $4,766,259.60

so the interest on the $2,397,595.50 loan is ...

$4,766,259.60 -2,397,595.50 = $2,368,664.10

7 0

3 years ago

How many times can 19 go into 225?

Tatiana [17]

Fraction wise: 19/225
decimal wise: 0.084444444

5 0

3 years ago