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3 years ago

Simplify using the order of operations. (2 + 1) 3 ÷ 32 = 1 3 9 2

Mathematics

1 answer:

puteri [66]3 years ago

5 0

Answer: I believe the answer is 0.1875. Must be a typo here, because...

Step-by-step explanation: parentheses first. (2+1)3%32=

After parentheses are taken out. 3x3%32= No exponents, so multiply or divide, whatever comes first.

6%32 is 0.1875

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At a fixed operating setting, the pressure in a line downstream of a reciprocating compressor has a mean value of 950 kPa with a

prisoha [69]

Answer:

4.75% probability that the line pressure will exceed 1000 kPa during any measurement

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 950, \sigma = 30$

What is the probability that the line pressure will exceed 1000 kPa during any measurement

This is 1 subtracted by the pvalue of Z when X = 1000. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{1000 - 950}{30}$

$Z = 1.67$

$Z = 1.67$ has a pvalue of 0.9525

1 - 0.9525 = 0.0475

4.75% probability that the line pressure will exceed 1000 kPa during any measurement

7 0

3 years ago

Can You Please Help Me

ELEN [110]

Since an integer is a whole number, the numbers closer to 0 on the number line are -2 and -1, so there are 2 options.

The answer is 2 choices, in short.

4 0

3 years ago

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What is 5 1/2 is its simple form?

Semmy [17]

Even numbers can’t be simplified

3 0

3 years ago

Pls, help!!!! Will make brainliest!!!

riadik2000 [5.3K]

Answer:

y=2x+6

Step-by-step explanation:

slope intercept formula → y=mx+b

$\frac{6-2}{0-(-2)} =\frac{4}{2} =2\\$

so 2 is your slope and the point (0,6) crosses the y-intercept at 6 since x = 0

plugin 2 for m (or the slope) and 6 for b (y-intercept)

your answer → y=2x+6

4 0

2 years ago

Barry owns a music store, He recorded the sales of a newly launched album as part of his biweekly inventory. The table shows the

dimulka [17.4K]

Hi! Basically, the problem is asking us to find the values of a, b, and c in the equation $f(x)=a x^{2} +bx+c$ . Since we have three unknowns, we just need three equations. We can find these equations by using the data in the table.

First let's plug x = 0 and f(x) = 0.
$0=0+0+c$
$c=0$

Now that we know c, it's time to pick two more pairs. Let's plug-in (2,78) and (4,152)

$78=4a+2b$
$152=16a+4b$

Before proceeding with the process of eliminating one variable, let us first reduce both equations to their lowest terms. We divide the first equation by 2 and we divide the second one by 4.

$39=2a+b$
$38=4a+b$

Next, we subtract equation 2 from equation 1.

$1=-2a$
$a=-0.5$

Finally, we substitute the value of a to equation 2 to get the value of b.

$38=4(-0.5)+b$
$b=40$

Therefore, the function should be $f(x)=-0.5 x^{2} +40x$

5 0

3 years ago

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