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seraphim [82]
4 years ago
15

12

Mathematics
1 answer:
Alenkasestr [34]4 years ago
7 0
<h2>A  = 3x – 5 and  B = 3 – x</h2>

Step-by-step explanation:

The given linear expressions are:

A + B = 2x – 2                       ...... (1)

and A - B = 4x – 8                ...... (2)

To find, the value of A and B = ?

Adding equations (1) and (2), we get

A + B + A - B = 2x – 2 + 4x – 8  

⇒ A + A  = 6x – 10

⇒ 2A  = 2(3x – 5)

⇒ A  = 3x – 5

Putting the value of A in equation (1), we get

3x – 5 + B = 2x – 2    

⇒ B = 2x – 2 - 3x + 5

⇒ B = 3 – x

Thus, A  = 3x – 5 and  B = 3 – x

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Find the equation of a line perpendicular to 4x – 4y = -4 that contains the point (-5, -2).
svetlana [45]

Answer:

Y = -X - 7

Step-by-step explanation:

y-y1 =m(x-x1)

y-(-2)= -1(x-(-5)

y+2 = -1(x+5)

Solve for y

subtract 2 from both sides

y=-x-5-2

Y = -x-7

7 0
3 years ago
Question number 7 Give a reasonable domain and range for the function in this context
alina1380 [7]

Answer: D: [0, ∞)  

              R: [0, ∞)

Step-by-step explanation:

f(x) = 1.5x

  • x is the number of bottles
  • f(x) is the cost

Domain is the x-values.  The least amount of bottles you can buy is 0 and the most you can buy is infinite <em>(technically you can only buy the amount you can afford and the amount the store has to sell but for mathematical purposes you can buy an infinite amount)</em>

So, the domain (D) is x = 0 to ∞ → D: [0, ∞)

Range is the y-values. The least and most amounts are based on the domain. Since the smallest x-value is 0, input that value into the equation to solve for f(x).  Similarly, input the greatest x-value to solve for f(x).

f(x) = 1.5(0)

     = 0

f(x) = 1.5(∞)

     = ∞

So, the range (R) is f(x) = 0 to ∞ → R: [0, ∞)

3 0
4 years ago
See below! Thanks Durtle!
ZanzabumX [31]

Answer:

(6,7)

Step-by-step explanation:

The length of the new vector is \sqrt{85}, with side lengths 7 and 6. Therefore, the new coordinates are (6,7). Hope this helps!

4 0
3 years ago
Help plz ill give extra points
Vinil7 [7]
The correct answer is D. An outlier on a graph is going to be a point that is either off center of the line that can be drawn or that is further away from the rest of the points. In this case the point at 0, 18 is the furthest point so therefore it must be the outlier. Noticing that at that point the length and mass of the shark is very small, it is fair to say that that shark is a newborn small shark and he is the outlier among the larger and longer sharks in the ocean.

Hope this helps
3 0
3 years ago
Cedarburg's zoo has two elephants. The male elephant weighs 3 3/4 tons and the female
kati45 [8]

Answer:

the male weigh than the female

Step-by-step explanation:

\frac{19}{6}=3\frac{1}{6}

3 0
3 years ago
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