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3 years ago

How many solutions does the equation have?

Mathematics

2 answers:

olganol [36]3 years ago

8 0

This equation has no solutions

MaRussiya [10]3 years ago

3 0

In order to find out if the following equation has solutions or not, we have to solve it:

y+7=y-3

y-y=-3-7

0=-10 This has no logic, because 0 is not equivalent to -10

In fact:

$0\neq-10$

Then, this equation does not have a logic solution

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2 years ago

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The relevant rules of exponents are
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.. (t^-4)^-9·t^2
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3 years ago

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katrin2010 [14]

Step-by-step explanation:

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3 years ago

Read 2 more answers

Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 9 adult smartphone use

forsale [732]

Answer: 0.9617

Step-by-step explanation:

Given : The proportion of adults use their phones in meetings or classes : p=0.57

Number of adults randomly selected : n= 9

Let x be the random variable that represents the number of adults use their phones in meetings or classes.

By using binomial probability formula, to find the probability of getting success in x trials.

$P(x)=^nC_xp^x(1-p)^{n-x}$

The probability that at least 3 of them use their smartphones in meetings or classes will be :-

$P(x\geq3)=1-P(x$

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