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2 years ago

PLEASE HELP! What are the solutions to the equation 2^−x = −2x?

Mathematics

1 answer:

topjm [15]2 years ago

6 0

Plit the second term in 2{x}^{2}-x-12x2 −x−1 into two terms2{x}^{2}+x-2x-1=02x2 +x−2x−1=0
2 Factor out common terms in the first two terms, then in the last two termsx(2x+1)-(2x+1)=0x(2x+1)−(2x+1)=0
3 Factor out the common term 2x+12x+1(2x+1)(x-1)=0(2x+1)(x−1)=0
4 Solve for xxx=-\frac{1}{2},1x=−21 ,1

Decimal Form: -0.5, 1

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gulaghasi [49]

Answer:

58%

Step-by-step explanation:

This is a problem of conditional probability.

Let A represent the event that student has dark hair.

So P(A) = 55% = 0.55

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So, P(B) = 60% = 0.60

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We are to find the probability that a randomly selected student will have dark hair, given that the student has blue eyes. Using the given formula and values, we get:

$P(A|B)=\frac{P(A \cap B)}{P(B)}\\\\ P(A|B)=\frac{0.35}{0.60}\\\\ P(A|B)=0.58$

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3 years ago

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zimovet [89]

Answer:

1: 155

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7: 202

8:?

9: ?

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Step-by-step explanation:

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2 years ago

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Doss [256]

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Step-by-step explanation:

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216 students enrolled in a freshman-level chemistry class. By the end of the semester, 5 times the number of students passed as

Semenov [28]

Answer:

The no. of student failed is 36.

Step-by-step explanation:

Given, the number of student enrolled= 216

Let us suppose number of student failed = x

Given,

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1 year ago

Divide 645 by 3 to get your answer

likoan [24]

Answer:

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Step-by-step explanation:

You can use long division to find the answer.

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3 years ago

PLEASE HELP! What are the solutions to the equation ​2^−x = −2x?

PLEASE HELP! What are the solutions to the equation 2^−x = −2x?