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Karolina [17]
3 years ago
14

Which set of coordinates satisfies the equations 3x − 2y = 15 and 4x − y = 20?

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
3 0

The answer is C. (5,0)

lions [1.4K]3 years ago
3 0

Answer:

easy 5 ,0 c the x axis is run 5 then you rise on the positive y axis 0 and theres your awnser

Step-by-step explanation:

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X= 2/3 y= 1/2 z=4 2/3 work out the value of z+x *y
Blizzard [7]

Answer: 16/9 or 1 7/9

Step-by-step explanation:

plug in the values

4 2/3 + 2/3 * 1/2

add the first two values

4 2/3 + 2/3 = 4 4/3 or 5 1/3

multiply 5 1/3 by 1/2

5 1/3 * 1/3 =  16/9 or 1 7/9

6 0
3 years ago
Write the quadratic function in vertex form: f(x) = 4x2 + 2x -5
Andrei [34K]
Please use " ^ " to denote exponentiation:  <span>f(x) = 4x^2 + 2x -5.  To find the vertex form of this equation, complete the square:

f(x) = 4x^2 + 2x                                           - 5
      = 4(x^2 + (2/4)x)                                         - 5
      =  4(x^2 + (1/2)x )                                  -5
      = 4(x^2 + (1/2)x + 1/16  ) - 4/16 - 5
      = 4(x+1/4) - 21/4    <= in vertex form

Here h= -1/4 and k = -21/4.  The vertex is at (-1/4, -21/4)</span>
3 0
3 years ago
Read 2 more answers
Which set of values could be the side lengths of a 30-60-90 triangle?
yulyashka [42]
C). 6*6√2*12 is your answer.... i think 
7 0
3 years ago
Read 2 more answers
Determine which function has a greater change of rate.<br> Be sure to show work as well.
Paha777 [63]
Find slope
a. (-1,5) (0,0)
0-5/0+1
= -5
b. 4-3/4-3
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6 0
3 years ago
Braydon, a scuba diver, has a tank that holds 6 liters of air under a pressure of 220 pounds per square inch (psi).
mixer [17]

Answer: 4 litres of air is held in Braydon’s tank.

Step-by-step explanation:

The law relating pressure to volume is the Boyle's law. It states that the volume of a given mass of gas is inversely proportional to its pressure as long as temperature remains constant. It is expressed as

P1V1 = P2V2

Where

P1 and P2 are the initial and final pressures of the gas.

V1 and V2 are the initial and final volumes of the gas.

From the information given,

V1 = 6 litres

P = 220 psi

P2 = 330 psi

Therefore,

6 × 220 = 330V2

V2 = 1320/330 = 4 litres

6 0
3 years ago
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