3 years ago

Find the additive inverse of each rational number. 1.- 1/2 2. 0.25 3. 9/10 4. -0.4

Mathematics

1 answer:

AURORKA [14]3 years ago

5 0

Answer:

i think its 3 9/10 hope this helps u

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Gross Pay: 28.75

jarptica [38.1K]

Answer:

No, you would multiply by 1.15

Step-by-step explanation:

A percentage goes by 'Hundreths' or .01

So 15% would be .15

We don't want to lose money along the way so we add a 1 it so it goes up for the total, like this:

28.75 * 1.15 = 33.1

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3 years ago

Find x for,<br> sin⁻¹ 4x + sin⁻¹ 3x = -<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%20%7D%7B2%7D" id="TexFormula1" title="\

Novay_Z [31]

<h2>Explanation:</h2><h2></h2>

Let's solve this problem graphically. Here we have the following equation:

$sin^{-1}(4x) + sin^{-1}(3x) = -\frac{\pi}{2}$

So we can rewrite this as:

$f(x)=sin^{-1}(4x) + sin^{-1}(3x) \\ \\ g(x)= -\frac{\pi}{2}$

So the solution to the equation is the x-value at which the functions f and g intersect. In other words:

$f(x)=g(x) \\ \\ sin^{-1}(4x) + sin^{-1}(3x) = -\frac{\pi}{2}$

Using graphing calculator, we get that this value occurs at:

$\boxed{x=-0.2}$

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4 years ago

What is the fully factored form of the expression 45x²y2 + 18x3

Llana [10]

Answer:

9x^2(5y^2 + 2x).

Step-by-step explanation:

First find the Greatest Common Factor of the 2 terms.

GCF of 18 and 45 = 9

GCF of x^2 and x^3 = x^2.

The complete GCF is therefore 9x^2.

So, dividing each term by the GCF, we obtain:

9x^2(5y^2 + 2x).

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3 years ago

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ExtremeBDS [4]

Y + 8 = 2
-8 =-8
Y=-6

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3 years ago

What is the common denominator between 3/8 and 1/2

Nimfa-mama [501]

1/2 = 4/8

3/8 = 3/8

8 is the common denominator between these two fractions

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3 years ago