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sergeinik [125]
3 years ago
15

Solving system of equations using elimination 3x-3y=-6 , -5x+6y=12

Mathematics
1 answer:
suter [353]3 years ago
3 0

Answer:

x=0, y=2

Step-by-step explanation:

Please see attached picture for full solution.

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A
grandymaker [24]

Answer:

  • 2 seconds
  • 72 feet

Step-by-step explanation:

The usual equation used for the vertical component of ballistic motion is ...

  h(t) = -16t² +v₀t +h₀

where v₀ is the initial upward velocity, and h₀ is the initial height. Units of distance are feet, and units of time are seconds.

Your problem statement gives ...

  v₀ = 64 ft/s

  h₀ = 8 ft

so the equation of height is ...

  h(t) = -16t² +64t +8

__

For quadratic ax² +bx +c, the axis of symmetry is x=-b/(2a). Then the axis of symmetry of the height equation is ...

  t = -64/(2(-16)) = 2

The object will reach its maximum height after 2 seconds.

The height at that time will be ...

  h(2) = -16(2²) +64(2) +8 = 72

The maximum height will be 72 feet.

5 0
3 years ago
Find the value of 5 ∙ 23.<br><br><br>30<br><br>40&lt;<br><br>1,000
Mashutka [201]

Answer:  5 * 23 = 115 so 40<

Step-by-step explanation:

4 0
3 years ago
Question 1
ICE Princess25 [194]
<h3>Answer: Euler Line</h3>

Explanation:

The Euler Line contains the following points

  1. Orthocenter
  2. Circumcenter
  3. Centroid

all of which can be thought of as the "center" of a triangle. Strangely enough, the incenter is not generally found on the Euler line.

7 0
3 years ago
Read 2 more answers
Which equation represents a proportional relationship?
Verizon [17]

y = 3 x equation represents a proportional relationship.

Answer: Option B

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

A proportional variation represents a relationship between two variables x and y. It can be expressed in the form y=k x. Here, the ‘k’, the proportionality constant is equal to the slope m and the line goes through the origin

case A) y=2\left(x+\frac{1}{3}\right)

A linear equation that not passes through the origin and so not proportional variation

case B) y= 3 x

Is a linear equation but passes through the origin and so proportional variation

case C) y = - 3x+2

A linear equation that not passes through the origin and so not proportional variation

case D)  \text { D) } y=\frac{1}{2 x}

An inverse variation equation but not passes through the origin and so not proportional variation.

From these, equation option B is the proportion equation because in these equations, there is no addition and subtraction of any constant number. That’s why both these equations become proportional equations.

5 0
3 years ago
Read 2 more answers
Can someone give me answers?
Alenkasestr [34]

Answer:

Maybe if you give a better quality photo that isn't sideways! :D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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