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2 years ago

What is 2 3/5 + 1 3/5

Mathematics

2 answers:

Vlada [557]2 years ago

6 0

Answer: 4 1/5

Step-by-step explanation:

Rewriting our equation with parts separated

=2 + 3/5 + 1 + 3/5

Solving the whole number parts

2 + 1= 3

Solving the fraction parts

3/5 + 3/5 = 6/5

Simplifying the fraction part, 6/5,

6/5 = 1 1/5

Combining the whole and fraction parts

3 + 1+ 1/5 = 4 1/5

Solution by Formulas

converting mixed numbers to fractions, our initial equation becomes,

13/5 + 8/5

Applying the fractions formula for addition,

=(13 × 5) + (8 × 5)/5 × 5

=65+40 / 25

=105/25

Simplifying 105/25, the answer is

=4 1/5

alina1380 [7]2 years ago

6 0

Answer:

4 1/5

Step-by-step explanation:

2 3/5 + 1 3/5

3 6/5

But we cannot leave an improper fraction

3 + 1 1/5

4 1/5

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Deffense [45]

I that 'y' is 45 degrees because of alternate angles (I think its called).

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And so if we use the fact that alternate angle must be equal then y= 45 degrees (I think!)

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NISA [10]

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$\frac{\sqrt{\pi}}{4}$

Step-by-step explanation:

You are going to integrate the following function:

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lets call to this integral, the integral Io.

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$I_n=\int_0^{\infty}x^ne^{-ax^2}dx$

furthermore you use the fact that:

$I_n=-\frac{\partial I_{n-2}}{\partial a}$

by using this last expression in an iterative way you obtain the following:

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Answer:

Step-by-step explanation:

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2 years ago

If sin θ = 2 over 7 and tan θ > 0, what is the value of cos θ?

sergey [27]

Sin θ = 2 / 7
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sin θ = opposite / hypotenuse
tan θ = opposite / adjacent
cos θ = adjacent / hypotenuse

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