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blondinia [14]
3 years ago
8

‐4x+7y=‐13 -2x+8y=‐2 Solve the system of equation

Mathematics
2 answers:
timama [110]3 years ago
3 0

Answer: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (5,1)

Equation Form: x=5,y=1

Gala2k [10]3 years ago
3 0

Answer:

(5,1)

Step-by-step explanation:

4x + 7•(x /4-1/4) = -13

   -9x/4 = -45/4

   -9x = -45

Solve equation for the variable  x

 9x = 45

  x = 5

By now we know this much :

x = 5

   y = x/4-1/4

Use the  x  value to solve for  y

   y = (/4)(5)-1/4 = 1

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In parallelogram RSTU, SW = 4 cm, WT = 6 cm, RS = 5 cm, and ST = 7 cm.
zaharov [31]

<u>Answer-</u>

<em>The length of line segment WU is</em><em> 4 cm</em><em>.</em>

Option 1. 4 cm is correct.

<u>Solution-</u>

As given that, RSTU is an parallelogram.

RT and SU are its two diagonals. They intersect each other at point W.

Properties of parallelogram is that they bisect each other.

i.e SW = WU and RW = WT

As given that, SW = 4 cm.

So, WU = SW = 4 cm

Therefore, the length of line segment WU is 4 cm.

8 0
4 years ago
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OverLord2011 [107]

Answer:

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a=2(d-vt)/t^2

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Step-by-step explanation:

Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula, d is

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Given the formula for calculating the displacement of a body as shown below;

d=vt - 1/2at^2

Where,

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v = final velocity

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To make acceleration(a), the subject of the formula

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d - vt=vt - vt - 1/2at^2

d - vt= -1/2at^2

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Divide both sides by t^2

2(d - vt) / t^2 = -at^2 / t^2

2(d - vt) / t^2 = -a

a= -2(d - vt) / t^2

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3 years ago
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Answer:

B. $54

Step-by-step explanation:

PEMDAS: Do multiplication and division first

65 - (2*7=14) + (9/3=3)

65-14+3

Go from left to right and solve

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Step-by-step explanation:

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