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Brums [2.3K]
3 years ago
8

Can some help with this question

Mathematics
2 answers:
zhuklara [117]3 years ago
8 0

Answer:

y+1 = 3(x-1)


Step-by-step explanation:

We need to find the slope

We have one point (1,-1)  Another point is (2,2)

Slope = (y2-y2)/(x2-x1)

         = (2--1)/(2-1)

       = (2+1)/(2-1)

        = 3/1

The slope is 3

Point slope for of a line is given by

y-y1 = m(x-x1)

We are to use the point (1,-1)

y--1 = 3(x-1)

y+1 = 3(x-1)


marissa [1.9K]3 years ago
6 0

Answer:

y + 1 = 3(x - 1)

Step-by-step explanation:

The given point is (1,-1) meaning that x1 = 1 and y1 = -1

The slope of this line is m = 3 because we go up 3 and over to the right 1 (eg: go from the point (1,-1) to (2,2) to see this in action)

Plug these three pieces of info into the point slope formula below

y - y1 = m(x - x1)

y - (-1) = 3(x - 1)

y + 1 = 3(x - 1)

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Help please !!!! This is really hard
ankoles [38]

Answer:

Option -c  :5^ -12  .  2^ 40

Step-by-step explanation:

(  5^6 . 2^8    )( 5^-2  . 2^5 )

(  5^6 . 5^-2  )   ( 2^8  . 2^5 )

5^ -12  .  2^ 40

Option -c :  5^ -12  .  2^ 40

I hope im right!!  

4 0
2 years ago
Janice bought 5 bags of gummy bears at $0.85 each and 9 packs of gum at $1.20 each for her class party.
STatiana [176]
5 times 0.85 = 4.25 gummy bears
 9 times 1.20 = 10.80 gum
10.80 + 4.25 = 15.05 total<span />
6 0
3 years ago
Read 2 more answers
The necklace charm shown has two parts, each shaped like a trapezoid with identical dimensions. What is the total area, in squar
pashok25 [27]
The area of the trapezoid can be calculated through the equation, 
                               A = (b₁ + b₂)h / 2
where b₁ and b₂ are the bases and h is the height. Substituting the known values from the given, 
                              A = (25mm + 32mm)(15 mm) / 2 
                               A = 427.5 mm²
Since there are two trapezoids in the necklace, the area calculated is to be multiplied by two to get the total area. 
                        total area = (427.5 mm²)(2) 
                        <em>total area = 855 mm²</em>
3 0
3 years ago
Read 2 more answers
What's the volume to this prism?
DIA [1.3K]

Answer:

36 cubic inch

Step-by-step explanation:

The formula for the volume of a rectangular prism is:

V=whl

----------------------------------------------------------------------------------------------------------------

So:

6 × 3 × 2 = 36

----------------------------------------------------------------------------------------------------------------

Have a good day :)

8 0
3 years ago
A landscaper is making a garden bed in the shape of a rectangle. The length of the garden bed is 2.5 feet longer than twice the
Step2247 [10]

Answer:

I'll setup the problem, then you can do the calculations

Step-by-step explanation:

Perimeter = 2width(W) + 2length (L)

Area = LW

L = 2.5 + 2W

LW = 62.5

substitute L in equation for area

2.5W +  {2W}^{2}  = 62.5 \\  \\  {2W}^{2}  + 2.5 - 62.5 \\  \\  use \:  quadratic \:  solution \\\frac{ - b ±  \sqrt{ {b}^{2}  - 4ac}}{2a}

a = 2; b = 2.5; c = 62.5

send a comment if you have a question

7 0
3 years ago
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