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aivan3 [116]
3 years ago
7

9%7D%5E%7B-1%7D" id="TexFormula1" title="{(\frac{4}{3}) ^{-1} - (\frac{1}{4} )^{-1})}^{-1}" alt="{(\frac{4}{3}) ^{-1} - (\frac{1}{4} )^{-1})}^{-1}" align="absmiddle" class="latex-formula">
Pls include steps
Mathematics
1 answer:
neonofarm [45]3 years ago
7 0

Step-by-step explanation:

(4/3)–1 = 3/4 and (1/4)–1 = 4/1

now we have,

(3/4 - 4)–1 = (-13/4)–1

= -4/13

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HELP ME NOW PLEASE NOW ADGAFDKD;LHJ!!!!!!<br><br><br> PLEASE AND THANK YOU :)))))
Eddi Din [679]

I got D.

There's a few ways to solve it; I prefer using tables, but there are functions on a TI-84 that'll do it for you too. The logic here is, you have a standard normal distribution which means right away, the mean is 0 and the standard deviation is 1. This means you can use a Z table that helps you calculate the area beneath a normal curve for a range of values. Here, your two Z scores are -1.21 and .84. You might notice that this table doesn't account for negative values, but the cool thing about a normal distribution is that we can assume symmetry, so you can just look for 1.21 and call it good. The actual calculation here is:

1 - Z-score of 1.21 - Z-score .84 ... use the table or calculator

1 - .1131 - .2005 = .6864

Because this table calculates areas to the RIGHT of the mean, you have to play around with it a little to get the bit in the middle that your graph asks for. You subtract from 1 to make sure you're getting the area in the middle and not the area of the tails in this problem.

7 0
3 years ago
As an estimation we are told 5 miles is 8 km.<br> Convert 57.5 miles to km.
tester [92]

The answer would be about 93 km in length.

5 0
3 years ago
A pizza is to be cut into halves. Each of these halves is to be cut into sevenths. What fraction of the pizza is each of the fin
Hitman42 [59]

Answer: \dfrac{1}{14}

Step-by-step explanation:

Given, A pizza is to be cut into halves.

Since half is represented by \dfrac12 .

So each piece is now \dfrac12 of the original.

if each of these halves is to be cut into sevenths, then the fraction of  final pieces would be: \dfrac{1}{2}\times\dfrac{1}{7}=\dfrac{1}{14} or we can say each half is divides into 7 pieces since there are two halves, so there will be 2 x 7 = 14 peices.

And the fraction of the pizza is each of the final pieces = \dfrac{1}{14} .

7 0
3 years ago
How can i find the answer to 188x31?
eduard
The answer to 188x31 is 5,828
7 0
3 years ago
In a class of 40 students, 20% are females. How many males are in the class?​
Vadim26 [7]

Answer:

In a class of 40 students, 20% are females. How many males are in the class?​

ANSWER

= 32

6 0
2 years ago
Read 2 more answers
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