3 years ago

What is the difference between Delta x and dx? ...?

1 answer:

6 0

Δx (delta x) is about a secant line, a line between two points representing the rate of change between those two points. That's a "differential" (between the two points).

dx is about a tangent line to one point, representing an instantaneous rate of change. That makes it a "derivative."

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A $500 television is on sale for 20% off. However, you must pay 6% in sales tax. What is the final price of the television after

GrogVix [38]

20% off means you are paying 80% of the original price ( 100% - 20% = 80%)

Multiply the price of the tv by 80% to find the sale price:

500 x 0.80 = 400

Now multiply the sales price by 1 plus the tax rate to find final cost:

400 x 1.06 = 424

Final price including tax is $424

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3 years ago

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antoniya [11.8K]

Answer:

<AFB

Step-by-step explanation:

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2 years ago

Simplify 2 +5 + (-4 +i)

rodikova [14]

Answer:

the answer is 4 because

2+5+(-4+1)

= 7+(-3)

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3 years ago

What is the y intercept of the line whose equation is y = 1/2x - 3

den301095 [7]

The y intercept is when x=0 so y=1/2(0) -3 so y=0-3 so y=-3

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3 years ago

Read 2 more answers

The dimensions of a rectangular garden were 5m by 12m. Each dimensions was increased by the same amount. the garden has an area

Alex_Xolod [135]

Let's say, the amount that each side was increased was "a"
so, it was 5 wide and 12 long, now it's 5+a wide and 12+a long

we know the area is 120, so whatever "a" is, we know that

(5+a)(12+a) = 120

so $\bf (5+a)(12+a) = 120\implies 60+17a+a^2=120
\\\\\\
a^2+\underline{17} a\underline{-60}=0\qquad \qquad 
\begin{cases}
20\cdot -3\implies \underline{-60}\\\\
20-3\implies \underline{17}
\end{cases}$

use those factors, solve for "a"

4 0

3 years ago