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likoan [24]
3 years ago
10

A line passes through (2, −1) and (4, 5).

Mathematics
2 answers:
liberstina [14]3 years ago
7 0
The answer to the first question is B
The second question is B
PSYCHO15rus [73]3 years ago
6 0

Answer:

<h2>1) Option B is the correct answer.</h2><h2>2) Option B is the correct answer.</h2>

Step-by-step explanation:

1) We have equation of line passing through (x₁,y₁) and (x₂,y₂) given by

                       y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

   (x₁,y₁) = (2, −1) and (x₂,y₂) = (4, 5)

Substituting

       y-(-1)=\frac{5-(-1)}{4-2}(x-2)\\\\y+1=3(x-2)\\\\y+1=3x-6\\\\-3x+y=-7

Option B is the correct answer.

2) Point slope form of line is given by

                 y-y₁ = m(x-x₁)

        (x₁,y₁) = (1, 9) and m = 5

     Substituting    

               y-9 = 5(x-1)        

     Option B is the correct answer.  

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Mary got a piggy bank as a gift with X cents in it. If she saves Y cents each month for a year, how much money will she have in
-BARSIC- [3]

Answer:

The total money she saved in a year = X + 12Y.

Step-by-step explanation:

Mary got a piggy bank as a gift.

Sum of money in the piggy bank while she got it as a gift = X cents

Sum of money she saved = Y cents per month

1 year = 12 months

So, sum of money she saved in 1 year = Y × 12

= 12Y

Hence, the total money she saved in a year = X + 12Y.

3 0
2 years ago
If the price for 12 cookies is 42 dollars how much would if cost for 1 cookie
Andrews [41]

Answer:

$3.50

Step-by-step explanation:

42 divided by 12 is the price of one cookie.

42 divided by 12 = $3.50

hope this helps :)

7 0
3 years ago
What is the value of p?
maks197457 [2]
Can you show all the answer choices, so I know if I am correct or not?
7 0
3 years ago
9= 2/3 (x+12) plz help
avanturin [10]

Answer:  x=3/2  

Step-by-step explanation:

Multiply the parentheses by 2/3.  9=2/3x+8.

Multiply  both sides by 3 .  27=2x+24

Move the term. When moved to the left side it changes from positive to a negative.  -2x=24-27.

-2x=-3

Divide both sides by -2

x=3/2   (x=1 1/2, x=1.5)

5 0
3 years ago
You produce 100 items and 47 of them will be shipped out of state. What percent of the items will be shipped out of state?
larisa [96]
47%.
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So if you had 34 things being shipped out of state then 34% of them would be shipped out of state.
3 0
3 years ago
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