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Alisiya [41]
3 years ago
9

Evaluate the following:

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0
It is the same as 7-4
7-4=3
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Calvin paints pictures and sells them at art shows. He charges $ 56.25 for a large painting. He charges $25.80 for a small paint
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He made $ 394.90 because you need to add all the large paintings then the small ones then add them all
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4 years ago
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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)
  • 5x + 10 + 4x + 12 = 2x^2 + 6x + 4x + 12
  • 9x + 22 = 2x^2 + 10x + 12

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
    x = 2

The two answers are x = -2.5, and x = 2.

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2 years ago
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erry jogs the same round trip path everyday. He jogs 0.7 miles to the park and then 0.5 miles from the park to the playground. A
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To solve this problem you must use the information given in the problem above:

1. You have that he jogs 0.7miles to the park and then 0.5miles to the playground, then he jogs 0.3 miles to the bridge and 0.9miles to his house.

2. Therefore, as you can see, Jerry completes his jog when he arrives to his house. So, he is 0miles from his house.

Then, the answer is: 0miles

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3 years ago
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Please help me it’s due in 12 minutes also pls explain why
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Root 25 is the rational number as it equals 5
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Why is angle h congruent to angle k
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Because both of the polygons are congruent and are flipped so there for they are the same angle
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