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andre [41]
3 years ago
14

What is the slope of the line that passes through the points (20,-3) and (-10,7)

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

-1/3

Step-by-step explanation:

To find the slope we use

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

   = (7 - -3)/(-10 -20)

  = (7+3)/ -30

  = 10/-30

   = -1/3

denis-greek [22]3 years ago
3 0

Answer:

The slope between the two points is -\frac{1}{3}

Step-by-step explanation:

The formula for finding the slope between is m=\frac{y2-y1}{x2-x1}.

We will use the given coordinate points.

y2 = 7

y1 = -3

x2 = -10

x1 = 20

Now, we will plug these values into our formula.

m=\frac{7-(-3)}{-10-20}

m=\frac{10}{-30}

m=-\frac{1}{3}

So, the slope between the two slopes is -\frac{1}{3}

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Which of the options below shows an expression that will correctly solve the following question?
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Answer:

Solution,

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Area(A)=212km²

Now As we have,

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Step-by-step explanation:

Since we have to divide the area by length to get the width. So, option C is correct.

5 0
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Find f(-4) <br> if f(x) = {(2,-4), (4,0), (5,-4), (-4, 0)}
Troyanec [42]

Answer:

If f(x) = 2x2 - 4x + 3 evaluate for f(3) and f(-4) 2. g(x) = V - 2x; find g(-27) and g(-1) ... {(-3,0), (+3, 3),(-3,2)} ... If f(x) = 5x+5, find and simplify f(4).

8 0
3 years ago
Answer with explanation
Savatey [412]

Answer: a and d

Step-by-step explanation:

(to find all points of discontinuity, set denominator equal to zero and solve)

x^2-7x+10=0\\\\

(to factor, find two numbers when added together equal -7 and when multiplied together equal 10)

-2 + -5 = -7

-2(-5) = 10

-2 and -5 are the two numbers

(x-2)(x-5)=0\\\\x-2=0\\x=2\\\\x-5=0\\x=5\\\\x=2,5

7 0
3 years ago
Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total t
Ilia_Sergeevich [38]

Answer: 220

<u>Step-by-step explanation:</u>

Children (x): $2

Teens (y): $3, \frac{3}{4}x

Adults: (z): $5

Quantity: x + y + z = 570  ⇒  x + \frac{3}{4}x + z = 570  ⇒ 1.75x + z = 570  

Cost: 2x + 3y + 5z = 1950  ⇒  2x + 3(\frac{3}{4}x) + 5z = 1950  ⇒  2x + 2.25x + 5z = 1950  ⇒  4.25x + 5z = 1950

Qty:    1.75x +  z =  570  →  5(1.75x +  z =  570)  →    8.75x + 5z = 2850

Cost: 4.25x + 5z = 1950 → -1(4.25x + 5z = 1950 → <u> -4.25x - 5z</u> = <u>-1950 </u>

                                                                                  4.50x        =   900

                                                                                          x       =    200

Teens (y): \frac{3}{4}x

           y = \frac{3}{4}(200)

             = \frac{600}{4}

             = 150

Quantity: x + y + z = 570  

              200 + 150 + z = 570

                     350     + z = 570

                                    z = 220


6 0
3 years ago
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