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vovangra [49]
3 years ago
9

9.

Mathematics
1 answer:
notsponge [240]3 years ago
3 0

Answer:

B) x = 2, y = 3, z = 5

Step-by-step explanation:

3x −2y + 4z = 20

3(2) - 2(3) + 4(5) = 20

20 = 20

−x + 5y +12z = 73

-2 + 5(3) + 12(5) = 73

73 = 73

x + 3y −2z = 1

2 + 3(3) - 2(5) = 1

1 = 1

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sleet_krkn [62]
<span><span> x = 0</span> <span>  y = -x/2+2</span> <span>  z = -x-y+1 
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4 0
3 years ago
Consider a parabola P that is congruent to y=x^2, opens upward, and has vertex (0,0). Find the equation of a new parabola that r
slega [8]

9514 1404 393

Answer:

  y = -(x+1)^2 +3

Step-by-step explanation:

Translating f(x) left by 1 unit replaces x with x+1.

Translating f(x) up by 3 units replaces f(x) with f(x)+3.

Reflecting f(x) over the x-axis replaces f(x) with -f(x).

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When y = x^2 is reflected over the x-axis, it becomes ...

  y = -x^2

When y = -x^2 is translated 1 unit left, it becomes ...

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7 0
3 years ago
Ms Hart had 40 dollars to spend on costume boxes for the musical. If she bought 12 boxes and received 4 dollars in change, how m
artcher [175]

Answer:each box cost =$3

Step-by-step explanation:

Amount of money Ms Hart has to spent on costume boxes=$40

Amount gotten as change after purchase=$4

Amount actually used up buying costume boxes =$40-$4=36

Since she bought 12 boxes , each box cost =$36/ 12=$3

5 0
3 years ago
The area of a square is 81 square centimeters. What is the perimeter of the square?
loris [4]

Answer:

p = 36cm

Step-by-step explanation:

p = 4a

4 × 9 = 36

<em>good luck, i hope this helps :) </em>

<em />

3 0
3 years ago
juan went to the sporting goods store. he spent $14 on a batting glove. he spent half of the remaining money on a football. late
Nuetrik [128]

Answer: 38 dollars

Step-by-step explanation:

  • work in reverse (include dollar sign in your answer, I can't get it on my keyboard)
  • 10  + 2 = 12
  • 12 x 2 = 24
  • 24 + 14= 38
4 0
2 years ago
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