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Alecsey [184]
3 years ago
15

The answer I need this answer emergency pls help

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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PLEASE HELP ASAP
Ksenya-84 [330]
1. The area of the photograph is:
 
 A=LxW
 
 A is the area of the photograph (A=54 in²).
 L is the lenght of the photograph (L=12-4x).
 W is the widht of the photograph (W=12-2x)
 
 2. When you substitute these values into the formula A=LxW, you obtain:
 
 A=LxW
 54=(12-4x)(12-2x)
 
 3. When you apply the distributive property, you have:
 
 54=144-24x-48x+8x²
 8x²-72x+144-54=0
 
 4. Finally, you obtain a quadratic equation for the area of the photo:
 
 8x²-72x+90=0
 
 5. Therefore, the answer is:
 
 8x²-72x+90=0

6 0
3 years ago
Suppose P(E) = 81%; P(E and F) = 9%; and P(E or F) = 65%,
PIT_PIT [208]

Using Venn probabilities, it is found that P(F) = -0.07, which is not a probability, as it is a negative value.

------------------

  • We have two events, E and F.
  • Their probabilities are: P(E) = 0.81, P(E \cap F) = 0.09, P(E \cup F) = 0.65
  • The probabilities are related by the following equation:

P(E \cap F) = P(E) + P(F) - P(E \cup F)

  • Replacing into the equation, we can find P(F).

0.09 = 0.81 + P(F) - 0.65

0.16 + P(F) = 0.09

P(F) = -0.07

P(F) = -0.07, which is not a probability, as it is a negative value.

A similar problem is given at brainly.com/question/21421475

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It has to be one of the negative answers. I’m not sure which one but I am sure it’s a negative number. :)
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I don't understand how to do this can someone please tell me the answer?:|
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2.2 times 3.3=7.26 because u just do it normally and move the decimal in twice because it's in two place values and there are 2 decimals so u move it twice to the left
4 0
3 years ago
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