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3 years ago

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Which of the following functions is a direct variation?

1 answer:

ololo11 [35]3 years ago

5 0

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

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What is the answer 4d+12e=

Phantasy [73]

Answer:

d = -3e

Step-by-step explanation:

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8 0

3 years ago

Given the six rational numbers below, come up with the greatest sum, difference, product,

Svetlanka [38]

The greatest sum, difference, product and quotient is 9, 12, 90 and 26 respectively.

<h3>How to determine the operations</h3>

Given the numbers -5 1/2, 3. 75, -20. 8, -4, 11 1/4

a. SUM

=8 + $11* \frac{1}{4}$

= $8 + \frac{45}{4}$

= $\frac{32 + 4}{4}$

= $\frac{36}{4}$

= 9

B. Difference

= 8 - (-4)

= 8 + 4

= 12

C. Product

= $8 * \frac{45}{4}$

= $2 * \frac{45}{1}$

= 90

D. Quotient

= $8 * 3. 25$

= 26

Thus, the greatest sum, difference, product and quotient is 9, 12, 90 and 26 respectively.

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brainly.com/question/4344214

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3 0

3 years ago

(3x^2+4x-2)-(4x^2-2x-5)

stiv31 [10]

-x^2+6x+3
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4 0

3 years ago

Read 2 more answers

A department store surveyed 428 shoppers, and the following information was obtained: 216 shoppers made a purchase, and 294 were

Maurinko [17]

Answer:

(a) 169

(b) 341

(c) 125

(d) 87

Step-by-step explanation:

Consider the Venn diagram below.

The total number of shoppers surveyed is, <em>N</em> = 428.

Number of shoppers who made a purchase, <em>n</em> (P) = 216

Number of shoppers who were satisfied with the service they received,

<em>n</em> (S) = 294

Number of shoppers who made a purchase but were not satisfied with the service, $n(S^{c}\cap P)$ = 47

(a)

The number of shoppers who made a purchase and were satisfied with the service = <em>n</em> (S ∩ P)

$n(S\cap P)=n(P)-n(S^{c}\cap P)\\=216-47\\=169$

(b)

The numbers of shoppers who made a purchase or were satisfied with the service = <em>n</em> (P ∪ S)

$n(P\cup S)=n(P)+n(S)-n(P\cap S)\\=n(P)+n(S)-n(S\cap P)\\=216+294-169\\=341$

(c)

The numbers of shoppers who were satisfied with the service but did not make a purchase = $n(S\cap P^{c})$

$n (S\cap P^{c} ) = n (S) - n (S \cap P)\\=294-169\\=125$

(d)

The number of shoppers who were not satisfied and did not make a purchase = $n(S^{c}\cap P^{c})$

$n(S^{c}\cap P^{c})=N-n(S\cup P)\\=N-n(P\cup S)\\=428-341\\=87$

6 0

3 years ago

An objects _________

kari74 [83]

I can’t really see it

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3 years ago