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Sonbull [250]
3 years ago
5

What is 1+ 2/5 over 2?

Mathematics
2 answers:
katovenus [111]3 years ago
5 0

Answer:

17/5 OR 3.4

Step-by-step explanation:

<u>1 + 2/5</u>

   2

<u>5/5 + 2/5</u>

      2

<u>7/5</u>

2

<u>7</u>  +  <u>2</u>

5      1

7/5 + 10/5

=17/5

Brrunno [24]3 years ago
4 0

Answer:

yeet

Step-by-step explanation:

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One argument against the American standard system of measurement is a lesser degree of accuracy than that of the metric system.
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In this item, we are to divide one (1) inch into 16 equal parts to be able to conclude that American standard system is less accurate than the metric system. 
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This in itself is already a proof enough that there are 4 decimal places after the decimal point which makes this hard to properly measure.

Whereas, if we are to divide a centimeter into the millimeters, we will have 10 equal parts and that would be 1 mm = 0.1 cm.

The number above only has one decimal place and the level of accuracy should be higher. 
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State whether f is a function
Alenkinab [10]
<h2>Answer:</h2>

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<h2>Step by step solution:</h2>

A function f from a set A to a set B is a relation that assigns to each element x in the set A exactly one element y in the set B. The set A is the domain (also called the set of inputs) of the function and the set B contains the range (also called the set of outputs). On the other hand, a function has an inverse function if and only if passes the Horizontal Line Test for Inverse Functions. This test tells us that a function f has an inverse function if and only if there is no any horizontal line that intersects the graph of f at more than one point. So the function is called one-to-one. The graph of f is shown below. As you can see, this function does not pass the Horizontal Line Test, therefore the inverse is not a function. However, let's find f^-{1}(x):

f(x)=6x^4 \\ \\ Substitute \ f(x) \ by \ y \\ \\ y=6x^4 \\ \\ Interchange \ x \ and \ y: \\ \\ x=6y^4 \\ \\ Solve \ for \ y: \\ \\ y^4=\frac{x}{6} \\ \\ Solving \\ \\y=\pm \sqrt[4]{\frac{x}{6}} \\ \\ \boxed{y=\pm \left(\frac{x}{6}\right)^{\frac{1}{4}}}

and this is not a function because there are elements in the set of inputs that match with two elements in the set of outputs.

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3 years ago
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I don't get this I really need help to understand this "/
Alisiya [41]
I don't either it is quite hard to be fair
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