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3 years ago

What does "k" stand for

Mathematics

2 answers:

Anna007 [38]3 years ago

5 0

K = scale factor......
:)

astraxan [27]3 years ago

4 0

K=scale factor. it doesn't stand for anything starting with letter k . it is just the commonly used notation.

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Question 24 only. Please explain solution

Anika [276]

$2500/2 = 1250. 1250/2 = 625. 625/2 = 312.5. 312.5/2 = 156.25. 156.25/2 = 78.125. 78.125/2 = 39.0625 Add all the end numbers up = 2460.9375. 2460.9375/2 = 1230.46875. 2460.9375 - 1230.46875 = 1230.46875. Therefore, she payed back 1230.46875, meaning she had 1230.46875 left in her account. Hope i helped! :D

3 0

3 years ago

Jessie is fencing in a rectangular plot outside of her back door so that she can let her dogs out to play. She has 60 feet of fe

DerKrebs [107]

Answer:

Dimensions are length 15 feet and width 30 feet.

Maximum area of the plot is 450 feet².

Step-by-step explanation:

Let the length of the plot = x feet and width = y feet.

Since, the amount of fencing to be applied on the three sides of the plot is 60 feet.

We have,

$2x + y = 60$ i.e. $y=60-2x$

Now, Area of the rectangular plot = Length × Width

i.e. Area of the rectangular plot = $x \times y$

i.e. Area of the rectangular plot = $x\times (60-2x)$

i.e. Area of the rectangular plot = $-2x^2+60x$

Since, the maximum of the quadratic equation $ax^2+bx+c$ will be obtained at $x= \frac{-b}{2a}$ .

Then, the maximum of the area of the plot is at the point $x= \frac{-60}{2\times (-2)}$ i.e. x= 15

Then, maximum area of the rectangular plot = $-2x^2+60x$

i.e. maximum area of the rectangular plot = $-2\times 15^2+60\times 15$

i.e. maximum area of the rectangular plot = -450+900 = 450 feet²

Hence, Maximum area of the plot is 450 feet².

Then, $y=60-2\times 15$ implies $y=60-30$ i.e. y= 30.

Hence, the maximum area is enclosed by the length 15 feet and width 30 feet.

6 0

4 years ago

4 Write a recursive formula for the sequence below. f(1) = 3, f(2) = 7, f(3)=11, f(4)=15

iren2701 [21]

Answer:

aₙ = aₙ₋₁ + 4

Step-by-step explanation:

Finding the common difference (d) :

d = f(2) - f(1)
d = 7 - 3
d = 4

Hence, the recursive formula :

aₙ = aₙ₋₁ + 4

8 0

3 years ago

Find the area of 9.5 cm and 4.1 cm

xeze [42]

9.5 cm x 4.1 cm = 38.95 cm^2

4 0

4 years ago

Read 2 more answers

3/4m + 12 = 36 (this is a Two-Step Equation btw)

elena-s [515]

Hey! Sorry if my answer comes late, I'm going to try and explain the problem to you.

So first you subtract 12 from 36, getting 24.

Now, you have to figure out what m is since 3/4 of it is 24. What is 24 3/4 of?

32.

So, the answer is m = 32

3 0

3 years ago

Read 2 more answers