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seropon [69]
3 years ago
11

What is x² + x + 49 on 2020 edg?

Mathematics
1 answer:
Verdich [7]3 years ago
6 0

Answer:

259

Step-by-step explanation:

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Michelle has fifteen more than two times as many pieces of candy as her sister. Which expression represents the number of pieces
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Answer: I know about this question I’m struggling on it..

Step-by-step explanation:

4 0
3 years ago
Bad gums may mean a bad heart. Researchers discovered that 79% of people who have suffered a heart attack had periodontal diseas
zysi [14]

Answer:

(A) 0.297

(B) 0.595

Step-by-step explanation:

Let,

H = a person who suffered from a heart attack

G = a person has the periodontal disease.

Given:

P (G|H) = 0.79, P(G|H') = 0.33 and P (H) = 0.15

Compute the probability that a person has the periodontal disease as follows:

P(G)=P(G|H)P(H)+P(G|H')P(H')\\=P(G|H)P(H)+P(G|H')(1-P(H))\\=(0.79\times0.15)+(0.33\times(1-0.15))\\=0.399

(A)

The probability that a person had periodontal disease, what is the probability that he or she will have a heart attack is:

P(H|G)=\frac{P(G|H)P(H)}{P(G)}\\=\frac{0.79\times0.15}{0.399} \\=0.29699\\\approx0.297

Thus, the probability that a person had periodontal disease, what is the probability that he or she will have a heart attack is 0.297.

(B)

Now if the probability of a person having a heart attack is, P (H) = 0.38.

Compute the probability that a person has the periodontal disease as follows:

P(G)=P(G|H)P(H)+P(G|H')P(H')\\=P(G|H)P(H)+P(G|H')(1-P(H))\\=(0.79\times0.38)+(0.33\times(1-0.38))\\=0.5048

Compute the probability of a person having a heart attack given that he or she has the disease:

P(H|G)=\frac{P(G|H)P(H)}{P(G)}\\=\frac{0.79\times0.38}{0.5048}\\ =0.59469\\\approx0.595

The probability of a person having a heart attack given that he or she has the disease is 0.595.

4 0
3 years ago
What is 3r³/2r<br>how do I go about solving it <br>thanks​
natulia [17]

Answer:

3r^2 /2

Step-by-step explanation:

r^3 cancels out r in the denominator remaining with r^2 in the numerator.

so 3r^2/2

= 3r^2 /2

6 0
3 years ago
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Which shows the list of numbers in order from least to greatest?
nirvana33 [79]

Answer:

-1, |-2|, |-3|, |3.5|, |3²|

Step-by-step explanation:

  • Calculate the absolute value (the absolute value of any number is always positive): 3, 3², 2 , 3.5, -1
  • Calculate the exponents : 3, 9, 2 , 3.5, -1
  • Put in order least to greatest : -1, |-2|, |-3|, |3.5|, |3²|
3 0
3 years ago
The function j(x)= 39x represents the number of jumping jacks (x) you can do in x minutes . How many jumping jacks can you do in
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Put x=5 in above function. J(x)= 39x. J(5) = 39x5 = 195.
8 0
3 years ago
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