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kolbaska11 [484]
3 years ago
15

?????????????!!!!!!!!!

Mathematics
2 answers:
Zinaida [17]3 years ago
6 0
The answer is B
Hope this helps
Svetach [21]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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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.

3 0
2 years ago
Read 2 more answers
Scott stood on a 42 in. high chair, then jumped into a 8 in.
Mamont248 [21]

Answer:

8-42 = -34 will be applied

4 0
3 years ago
Given f(x) = 5x + 3, find f(5)
Neko [114]

Answer:

Hey there!

f(x)=5x+3

f(5)=5(5)+3

f(5)=25+3

f(5)=28

Let me know if this helps :)

5 0
3 years ago
Read 2 more answers
What do two equivalent expressions always have in common
igomit [66]
Both have the same when simplified to its lowest point in the expression
3 0
3 years ago
7th grade math help me please :)
Vanyuwa [196]

Step-by-step explanation:

6^4=1296.

so the answer is 1296..................

5 0
3 years ago
Read 2 more answers
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