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Misha Larkins [42]
3 years ago
11

What is the point slope form of (1,3) , (-1,4)​

Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

Answer:

y - 3 = -\frac{1}{2}(x - 1)

Step-by-step explanation:

slope m = (y₂ - y₁) / (x₂ - x₁)

             = (4 - 3) / (-1 - 1)

             = -\frac{1}{2}

Point slope form:

y - y₁ = m(x - x₁)

y - 3 = -\frac{1}{2}(x - 1)

can be further simplify:

y - 3 = -\frac{1}{2}x + \frac{1}{2}

y - 7/2 = -1/2x

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It is telling me to use compatible numbers to estimate the percent of 19% of 30
nexus9112 [7]
19% of 30

19 / 30 = 5.7

19 percent of 30 is approx. 5.7

Hope that helps! -Nadia aka UnicornFudge
7 0
3 years ago
Read 2 more answers
Use the theoretical probability formula to solve the problem. Express the probability as a fraction
serg [7]

Answer:

c. 3 / 13

d. 2 / 13

Step-by-step explanation:

c.

A deck of cards has 52 cards. There are cards of 4 suits- Spades, Hearts, Diamonds and Clubs.

So, there are 52/4= 13 cards of each suit.

Among these 13 cards, there are 3 picture cards or face cards as they are called. These are the Jack, Queen and King cards.

So, the number of total picture cards = 4*3 = 12

the number of cards are 52

theoretical probability formula: P =  favorable events/  possible events

P = 12 / 52

P = 3 / 13

d.

there are four aces and four sevens in the deck

so favorable events = 4 + 4 = 8

possible eventas = 52

P = 8 / 52

P = 2 / 13

4 0
3 years ago
Bars of soap come in packages of 2 and packages of 8. The 2-bar pack costs $1.98, and the 8-bar pack costs $8.88. Which is the b
Sunny_sXe [5.5K]

Answer:

the answer is 2-bar pack that costs 1.98, it is 0.99 per bar.

Step-by-step explanation:

divide $1.98 and 2 which comes to $0.99 then divide $8.88 and 8 which comes to $1.11 so 0.99 is cheaper and the better deal

7 0
2 years ago
Pls Help !!!!!!!!!!!!!!
Sedaia [141]

Answer:

30

Step-by-step explanation:

7 0
3 years ago
Need help answering this question!!!!
Y_Kistochka [10]
For this case we use the following formula
Area of Sector = Area * radians of sector / 2 * pi radians
Where,
Area: it is the area of the complete circle.
We have then:
Area = pi * r ^ 2
Area = pi * (6) ^ 2
Area = 36pi
Substituting values:
5pi = 36pi * radians of sector / 2 * pi
Clearing:
radians of sector = ((5pi) * (2pi)) / (36pi)
radians of sector = (10pi ^ 2) / (36pi)
radians of sector = (10pi) / (36)
radians of sector = (10/36) pi
radians of sector = (5/18) pi
in degrees:
(5/18) pi * (180 / pi) = 50 degrees
Answer:
The measure of the central angle is:
50 degrees
6 0
3 years ago
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