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3 years ago

14

write a function for this table -- urgent -- I'm putting all my points into this!!!! -- bad answers reported! -- no explanation

necessary

1 answer:

viktelen [127]3 years ago

8 0

Answer:

$3x^{2} -3x-6$

Step-by-step explanation:

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Cindy's Gift Shoppe purchased 8-inch candles at $9.95 a dozen, less a 25 percent trade discount. If the owner wishes to sell the

Diano4ka-milaya [45]

The first thing you should do for this case is to take 35% out of 9.95
We have then
(0.35) * (9.95) = 3.4825
Then, we must add this value from the original price of a dozen
9.95+3.4825 = <span> <span>13.4325
less a 25 percent trade discount
</span></span> 13.4325*(1-0.25)=<span> <span>10.074375
</span></span> answer
the selling price of each dozen should be $<span> <span>10.074375</span></span>

6 0

3 years ago

What is x if <br> Show your working<br> 4x+5=5x-1

weeeeeb [17]

Answer:

x=6

Step-by-step explanation:

First, add 1 on both sides

4x + 5 = 5x -1

+1 +1

4x+6 =5x

Then, subtract 4x on both sides

4x+6 =5x

-4x -4x

6=x

So, x equals 6

Hope this helps! :)

4 0

3 years ago

The length of a rectangle is increasing at a rate of 4 meters per day and the width is increasing at a rate of 1 meter per day.

puteri [66]

Answer:

$\displaystyle \frac{dA}{dt} = 102 \ m^2/day$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Geometry</u>

Area of a Rectangle: A = lw

l is length
w is width

<u>Calculus</u>

Derivatives

Derivative Notation

Implicit Differentiation

Differentiation with respect to time

Derivative Rule [Product Rule]: $\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)$

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $\displaystyle l = 10 \ meters$ <u />

<u /> $\displaystyle \frac{dl}{dt} = 4 \ m/day$ <u />

<u /> $\displaystyle w = 23 \ meters$ <u />

<u /> $\displaystyle \frac{dw}{dt} = 1 \ m/day$ <u />

<u />

<u>Step 2: Differentiate</u>

[Area of Rectangle] Product Rule: $\displaystyle \frac{dA}{dt} = l\frac{dw}{dt} + w\frac{dl}{dt}$

<u>Step 3: Solve</u>

[Rate] Substitute in variables [Derivative]: $\displaystyle \frac{dA}{dt} = (10 \ m)(1 \ m/day) + (23 \ m)(4 \ m/day)$
[Rate] Multiply: $\displaystyle \frac{dA}{dt} = 10 \ m^2/day + 92 \ m^2/day$
[Rate] Add: $\displaystyle \frac{dA}{dt} = 102 \ m^2/day$

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Implicit Differentiation

Book: College Calculus 10e

8 0

3 years ago

An odd number between 301 and 370 has three different digits. If the sum of its digits is five times the hundreds digit, find th

damaskus [11]

For the answer to the question above, <span>
5x3 (the hundreds digit)= 15
so 3+x+y=15. 15-3=12. x+y=12.
No even number + odd number can be = 12, so both digits must be odd.
That leaves us with 3+3+z=15, 3+3+x =15 and 3+5+y= 15. 3+1+9 (highest odd digit)= 13 so that is wrong.
3+3+9= 15, but there is a double digit, so wrong again. 3+5+7=15. 357 is the answer.</span>

5 0

3 years ago

Find the distance between the points (-4, -20) and (20, -20)

Gnoma [55]

Answer:

Babes, see the pic for the answer...

3 0

3 years ago

Read 2 more answers