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Rama09 [41]
3 years ago
5

(4,-5), (6, r), m = 9 what is r​

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

r = 13

Step-by-step explanation:

m is slope

m= (y2-y1 )/ (x2-x1)

9= (r+5)/(6-4)

9= r+5/ 2

r+5 = 18

r = 13

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Hope it helps you.

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den301095 [7]

Answer:

61.71

Step-by-step explanation:

3 0
2 years ago
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Anyone happen to know the answer?
WINSTONCH [101]

Answer:

6.85 is the answer to this.

Step-by-step explanation:

356*24*60=525,600 minutes in a year

Birth rate

3,600,000/525,600 = 6.85

6 0
2 years ago
An article in USA Today stated that Internal surveys paid for by directory assistance providers show that even the most accurate
MariettaO [177]

Answer:

a. 11.26 % b. 6.76 %. It appears so since 6.76 % ≠ 15 %

Step-by-step explanation:

a. This is a binomial probability.

Let q = probability of giving out wrong number = 15 % = 0.15

p = probability of not giving out wrong number = 1 - q = 1 - 0.15 = 0.75

For a binomial probability, P(x) = ⁿCₓqˣpⁿ⁻ˣ. With n = 10 and x = 1, the probability of getting a number wrong P(x = 1) = ¹⁰C₁q¹p¹⁰⁻¹

= 10(0.15)(0.75)⁹

= 1.5(0.0751)

= 0.1126

= 11.26 %

b. At most one wrong is P(x ≤ 1) = P(0) + P(1)

= ¹⁰C₀q⁰p¹⁰⁻⁰ + ¹⁰C₁q¹p¹⁰⁻¹

= 1 × 1 × (0.75)¹⁰ + 10(0.15)(0.75)⁹

= 0.0563 + 0.01126

= 0.06756

= 6.756 %

≅ 6.76 %

Since the probability of at most one wrong number i got P(x ≤ 1) = 6.76 % ≠ 15 % the original probability of at most one are not equal, it thus appears that the original probability of 15 % is wrong.

3 0
3 years ago
Lance used two gallons of paint to pain 785 square feet. How many gallons will he need to purchase to cover 2,500 square feet?
Digiron [165]

Answer:

7 gallon

Step-by-step explanation:

Divide the space that needs paints by how much space has been painted

2500/785 = 3.18

Then double that because it takes 2 gallons to paint every 785 square feet

3.18 x 2 = 6.36

You would need 6.36 gallons of paint, which would round up to 7 because you cannot buy 0.36 of a gallon

8 0
2 years ago
13. Maria earns $8 per hour plus a 5% commission on the price
Pani-rosa [81]

Answer:

Inequality:

120 + 0.05x ≥ 200

Solution:

x ≥ $1,600

Her total weekly sales must be equal to or greater than $1,600

Step-by-step explanation:

Let x represent the weekly sales she must make to reach her goal.

Given;

Pay rate = $8

Weekly total work hours = 15 hours

Commission on sales = 5% = 0.05

Total weekly earnings is;

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120 + 0.05x

Minimum Weekly target earnings = $200

So;

120 + 0.05x ≥ 200

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0.05x ≥ 200 - 120

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Her total weekly sales must be equal to or greater than $1,600

6 0
3 years ago
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