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DochEvi [55]
3 years ago
15

Julianne desk is 75 centimeters long she say her desk is 7.5 meters long describe her error

Mathematics
2 answers:
allsm [11]3 years ago
8 0
First of all she said meters instead of centimeter.
and 2 she added a decimal point in between 7 and 5.
algol133 years ago
8 0
7.5 means it is 7 meters and 5 centimeters but 75cm is 0.75 or just 75cm
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MrMuchimi
The answer is y=x-5.
7 0
3 years ago
Please could you explain this step by step I’m really stuck.
allochka39001 [22]

Answer:

x = -2.5
x = 2

Step-by-step explanation:

Hello!

We can remove the denominators by multiplying everything by it.

Solve:

  • \frac{5}{x + 3} + \frac4{x + 2} = 2
  • 5 + \frac{4(x + 3)}{x + 2} = 2(x + 3)
  • 5 + \frac{4x + 12}{x + 2} = 2x + 6
  • 5(x + 2) +4x + 12 = (2x + 6)(x + 2)
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Let's make one side equal to 0.

  • 0 = 2x^2 + x - 10

Solve by factoring, and then the zero product property.

  • 0 = 2x^2 + x - 10\\

Multiply 2 and -10. You get -20. Think of two number that multiply to -20, and add to 1. If we think about the standard form of a quadratic, ax^2 + bx + c, think two numbers that equal "ac" and add up to "b".

  • 0 = 2x^2 - 4x + 5x - 10
  • 0 = 2x(x - 2) + 5(x - 2)
  • 0 = (2x + 5)(x - 2)

Using the zero product property, set each factor to 0 and solve for x.

  1. 2x + 5 = 0
    2x = -5
    x = -5/2 = -2.5
  2. x - 2 = 0
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The two answers are x = -2.5, and x = 2.

3 0
2 years ago
Read 2 more answers
send help!!!! Please!! The sum of the measures of the angles from any triangle is 180 degrees. In triangle ABC, angles A and B h
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Subtract 45 from both sides:

3x = 135

Divide both sides by 3:

X = 135/3

X = 45

Angle A = 45

Angle B = 45

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7 0
3 years ago
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Aleonysh [2.5K]

y intercept : (0,6)

Explanation:

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Replace b in the equation:

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Andre45 [30]
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