All categories

2 years ago

Solve the following equation: x + 5 = 42 a -42, 42 b -5, 5 c -37, 47 d -47, 37

Mathematics

1 answer:

morpeh [17]2 years ago

7 0

Answer:

Please read the explanation:

The answer is 37.

Step-by-step explanation:

x + 5 = 42 Write out the equation.

x + 5 - 5 = 42 -5 Subtract 5 on both sides to isolate the variable, x

x = 37

<h3><u><em>Please rate this and please give brainliest. Thanks!!!</em></u></h3><h3><u><em>Appreciate it! : )</em></u></h3>

You might be interested in

From a group of 11 people, 4 are randomly selected. What is the probability the 4 oldest people in the group were selected

asambeis [7]

Answer:

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

<em>Probability = expected number of outcome/Total number of outcome</em>

If there are group of 11 people, then the total outcome of events will be 11

If we are to select 4 oldest people from the group, then the expected outcome is 4.

Hence, the probability that the 4 oldest people in the group were selected is 4/11.

3 0

2 years ago

The exponential distribution applies to lifetimes of a certain component. Its failure rate is unknown. Find the probability that

wlad13 [49]

Answer:

a) 0.0821

b) 0.0111

c) 0.0041

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \lambda e^{-\lambda x}$

In which $\lambda$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\lambda x}$

Either it lasts more 5 years or less, or it survives more than 5 years. The sum of the probabilities of these events is decimal 1. So

$P(X \leq 5) + P(X > 5) = 1$

In all 3 cases, we want P(X > 5). So

$P(X > 5) = 1 - P(X \leq 5)$

In which

$P(X \leq 5) = 1 - e^{-5\lambda}$

(a) lambda=.5

$P(X \leq 5) = 1 - e^{-5*0.5} = 0.9179$

$P(X > 5) = 1 - P(X \leq 5) = 1 - 0.9179 = 0.0821$

(b) lambda=0.9

$P(X \leq 5) = 1 - e^{-5*0.9} = 0.9889$

$P(X > 5) = 1 - P(X \leq 5) = 1 - 0.9889 = 0.0111$

(c) lambda=1.1

$P(X \leq 5) = 1 - e^{-5*1.1} = 0.9959$

$P(X > 5) = 1 - P(X \leq 5) = 1 - 0.9959 = 0.0041$

7 0

2 years ago

Marco read that a honeybee fly up to 2.548 meters per second.He rounded the number to 2.55 to which place value did marco round

Kazeer [188]

He rounded to the hundredth.

7 0

2 years ago

Graph the solution on the number line 3x + 3) - 244 or 1-**-1<br> I need answer

viva [34]

Okay so 3x + 3 - 244 = -238 so I think you would put -238 on the number line and then fill in the line to the negative spot I hope that helps

3 0

2 years ago

Find the value of Y

Anna35 [415]

Answer:

y=19

Step-by-step explanation:

2y + 2 = 180 - 120 -20

2y = 40 - 2

2y = 38

y=19

7 0

2 years ago