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Gwar [14]
3 years ago
8

2. (-9 + 12) - (-7) ​

Mathematics
2 answers:
julia-pushkina [17]3 years ago
6 0

Answer:

Step-by-step explanation:

(-9 + 12) - (-7) = 4 -(-7)

                    = 4 + 7

                   = 11

Sign of 9 is (-)

Sign of 12 is +. So subtract and the answer will have the sign of bigger number

12 - 9 = 4 and bigger number is 12 and sign of 12 is +.so +4

Aleonysh [2.5K]3 years ago
3 0

Answer:

(-9+12)=3

3-(-7)=

3+7

ans=10

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10 pound of sugar

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poit 1 5 q

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Suppose that the proportions of blood phenotypes in a particular population are as follows: A B AB O 0.48 0.13 0.03 0.36 Assumin
Serggg [28]

Answer:

P(O and O) =0.1296

P=0.3778

Step-by-step explanation:

Given that

blood phenotypes in a particular population

A=0.48

B=0.13

AB=0.03

O=0.36

As we know that when A and B both are independent that

P(A and B)= P(A) X P(B)

The probability that both phenotypes O are in independent:

P(O and O)= P(O) X P(O)

P(O and O)= 0.36 X 0.36 =0.1296

P(O and O) =0.1296

The probability that the phenotypes of two randomly selected individuals match:

Here  four case are possible

So

P=P(A and A)+P(B and B)+P(AB and AB)+P(O and O)

P=0.48 x 0.48 + 0.13 x 0.13 + 0.03 x 0.03 + 0.36 x 0.36

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7 0
3 years ago
A square patio has a perimeter of (32x+8) feet. What is the length of the patio?
Sonbull [250]

The perimeter of the square patio is the sum of its side lengths

The length of the patio is: 8x + 2

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\mathbf{Perimeter = 4 \times Length}

So, we have:

\mathbf{4 \times Length = 32x + 8}

Divide both sides by 4

\mathbf{Length = 8x + 2}

Hence, the length of the patio is: 8x + 2

Read more about perimeters at:

brainly.com/question/6465134

3 0
3 years ago
In the Minnesota Northstar Cash Drawing, you pick five different numbers between 1 and 35. What is the probability of picking th
maw [93]

Answer:

\frac{1}{324632} probability of picking the winning combination

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Since the order is not important, the combinations formula is used to solve this question.

Combinations formula:

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)!}

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The correct five numbers from a set of 5. So

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\frac{1}{324632} probability of picking the winning combination

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