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saw5 [17]
3 years ago
7

4/5 divided by 1 2/5

Mathematics
1 answer:
scoundrel [369]3 years ago
3 0

Answer:

4/7

Step-by-step explanation:

Multiply the number by The reciprocal of 1 2/5

4/5*5/7=20/35

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Please help meee thanks
Helga [31]
Short answer <2 and <3

Explanation
<4 is an interior angle. It has a supplementary angle in <1 which is the easiest to see. It also has another angle that is equal to it in number <5. <1 = <5 because they are vertically opposite angles. But the one that easier to see is <1.

That being said, the remote interior angles are the two interior angles that are not directly connected to <1. That is the remote part. Interior angles are those that are inside the triangle. That can only be <2 and <3.

The answer is <2 and <3 <<<< answer
5 0
3 years ago
Is -4 &lt; -5 1/2 a true statement?
Rzqust [24]
Yes it is because ( hey i actually dont know the answer) the calculation of calcullas
7 0
3 years ago
Read 2 more answers
3. Solve these story problems.
miv72 [106K]

Answer:

$27

Step-by-step explanation:

6 yards is 18 feet, so 18x1.5 = 27

4 0
3 years ago
Read 2 more answers
The following function is probability mass function. f left-parenthesis x right-parenthesis equals StartFraction 2x plus 1Over 2
lora16 [44]

Answer:

a) Mean  = 2.6

B) Variance = 9.2

Step-by-step explanation:

We are given the following probability mass function in the question:

F(x) = \dfrac{2x+1}{25}, x = 0,1,2,3,4

a) Mean of random variable

\mu = \displaystyle\sum x_iF(x_i)\\\\=0(\dfrac{1}{25}) + 1(\dfrac{2+1}{25}) + 2(\dfrac{4+1}{25}) + 3(\dfrac{6+1}{25}) + 4(\dfrac{8+1}{25})\\\\=\dfrac{3+10+21+36}{25} = \dfrac{70}{25} = 2.8

b) Variance of the random variable

\sigma^2 = \displaystyle\sum x_i^2F(x_i)\\\\=0^2(\dfrac{1}{25}) + 1^2(\dfrac{2+1}{25}) + 2^2(\dfrac{4+1}{25}) + 3^2(\dfrac{6+1}{25}) + 4^2(\dfrac{8+1}{25})\\\\=\dfrac{3+20+63+144}{25} = \dfrac{230}{25} = 9.2

6 0
3 years ago
Bad gums may mean a bad heart. Researchers discovered that 81% of people who have suffered a heart attack has periodontal diseas
IgorC [24]

Answer:

0.405 or 40.5%

Step-by-step explanation:

Let event A=having a periodontal disease

event B=having a heart attack

we are given

P(A)=P(having a periodontal disease)=0.30

P(B)=P(having a heart attack)=0.15

P(A/B)=P(have a periodontal disease/have a heart attack)=0.81

P(B/A)=P(have a heart attack/have a periodontal disease)=?

P(A/B)=P(A∩B)/P(B)

P(A∩B)=P(B)*P(A/B)=0.15*0.81=0.1215

P(B/A)=P(A∩B)/P(A)=0.1215/0.3=0.405

There is 40.5% probability that if someone has periodontal disease will have a heart attack.

7 0
3 years ago
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