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3 years ago

Find the percent change from 120 to 192

Mathematics

2 answers:

Radda [10]3 years ago

6 0

Answer:

The percent change is 60

$60%$

melomori [17]3 years ago

5 0

Answer: 60% increase

Step-by-step explanation:

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Please help me with this !!!

Alona [7]

I filled it in for you, just remember that 200 is 2 times 100, aka 100%

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3 years ago

Derivative of these questions<br>

shtirl [24]

Answer: $\bold{y'=\dfrac{1}{2(a-b)^2}\bigg(\dfrac{1}{\sqrt{x+a}}+\dfrac{1}{\sqrt{x+b}}\bigg)}$

<u>Step-by-step explanation:</u>

$y=\dfrac{1}{\sqrt{x+a}-\sqrt{x+b}}\\\\\\\text{Rationalize the denominator:}\\y=\dfrac{1}{\sqrt{x+a}-\sqrt{x+b}}\bigg(\dfrac{\sqrt{x+a}+\sqrt{x+b}}{\sqrt{x+a}+\sqrt{x+b}}\bigg)\\\\\\y=\dfrac{\sqrt{x+a}+\sqrt{x+b}}{x+a-x-b}\\\\\\y=\dfrac{\sqrt{x+a}+\sqrt{x+b}}{a-b}\\\\\\\text{Apply the derivative (derivative of the numerator (top) divided by the}\\\text{denominator (bottom) squared).}$

$\text{Derivative of }\sqrt{x+a}\quad \rightarrow \quad (x+a)^{\frac{1}{2}}\quad = \quad \dfrac{1}{2}(x + a)^{-\frac{1}{2}}\\\\\text{Derivative of }\sqrt{x+b}\quad \rightarrow \quad (x+b)^{\frac{1}{2}}\quad = \quad \dfrac{1}{2}(x + b)^{-\frac{1}{2}}\\\\\\\text{Derivative of}\ \dfrac{\sqrt{x+a}+\sqrt{x+b}}{a-b}:\\\\= \dfrac{\dfrac{1}{2}(x + a)^{-\frac{1}{2}}+\dfrac{1}{2}(x + b)^{-\frac{1}{2}}}{(a-b)^2}$

$\text{Factor out }\dfrac{1}{2}\ \text{from the numerator:}\\\\\dfrac{(x+a)^{-\frac{1}{2}}+(x+b)^{-\frac{1}{2}}}{2(a-b)^2}\\\\\\\text{Move the terms with negative exponents to the denominator:}\\\\=\dfrac{1}{2(a-b)^2}\bigg(\dfrac{1}{\sqrt{x+a}}+\dfrac{1}{\sqrt{x+b}}\bigg)$

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3 years ago

Use the DESMOS graphing calculator to find the solution to the system.

Lady_Fox [76]

Answer:

Can you be more specific of what you are looking for please? i just entered it into the calc but what are you looking for as the answer?

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3 years ago

A railway car is shaped like a rectangular prism with a length of 18 meters, a width of 3 meters, and a height of 4 meters.

nekit [7.7K]

Answer:

216 cubic meters

Step-by-step explanation:

4 0

2 years ago

Can someone help me for this question?

denpristay [2]

1. determine the defined range

2. write all numerators above the common denominator

3. remove parenthesis

4. collect like terms

5. multiply both sides by (2x+1) x (2x-1)

6. simplify the product

7. multiply parenthesis by -4

8. cancel equal terms

9. move constant to the right

10. add the numbers

11. divide both sides by 6

ANSWER: x = 11/6

8 0

3 years ago

Find the percent change from 120 to 192​

Find the percent change from 120 to 192