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sveticcg [70]
3 years ago
9

Choose the equation that represents a line that passes through points (−1, 2) and (3, 1).

Mathematics
1 answer:
nlexa [21]3 years ago
8 0

Answer:

(B) x + 4y = 7

Step-by-step explanation:

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The weekly cost (C) of growing and selling x acres of flowers is approximated by C = 0.2x2 – 12x + 240. How many acres of flower
Anna71 [15]
To determine how many acres would minimize cost, we need to differentiate the expression given and set it to zero and obtain the value of x. We do as follows:

C(x) = 0.2x^2 - 12x +240
C'(x) = 0.4x - 12
0 = 0.4x - 12
x = 30 acres <---------amount of flowers needed to minimize cost
3 0
3 years ago
Arianna is saving money for college so she invests $1,000 into a savings account that earns interest every year. If the amount i
Verdich [7]

Answer: $1,624

Step-by-step explanation:

The amount after x-years is given as :

9x^{2} + 50x + 1000

Since x represents number of years , this means that after 6 years , the amount will be :

9(6^{2} ) + 50(6) + 1000

⇒9(36) + 300 + 1000

⇒324 + 300 + 1000 =

Therefore, the amount after 6 years will be $1,624

7 0
4 years ago
Which table represents a linear function?
Phoenix [80]
For it to be a linear equation, the same difference in x must produce the same difference in y always.

Choice A.
difference in x: 2 - 1 = 1
difference in y: -6 - (-2) = -4

difference in x: 3 - 2 = 1
difference in y: -2 - (-6) = 4

A difference of 1 in x gave a difference of -4 in y and another difference of 1 in x gave a difference of 4 in y.
This is not linear.

Choice B.
difference in x: 2 - 1 = 1
difference in y: -5 - (-2) = -3

difference in x: 3 - 2 = 1
difference in y: -9 - (-5) = -4

A difference of 1 in x gave a difference of -3 in y and another difference of 1 in x gave a difference of -4 in y.
This is not linear.

Choice C.
difference in x: 2 - 1 = 1
difference in y: -10 - (-2) = -8

difference in x: 3 - 2 = 1
difference in y: -18 - (-10) = -8

Do the other differences. All differences in y are -8 corresponding to a difference in x of -1.

This is linear.

Choice D.
The differences in y vary. It is not linear.

Answer: Choice C is linear.
3 0
3 years ago
Read 2 more answers
If y = 7x, what happens to x when y is increased by 5 times its original value?
liberstina [14]

Answer:

C) x also increases 5 times its original value

35/5=7

70/10=7

Step-by-step explanation:


5 0
3 years ago
What role did the Funk Brothers play in Motown music?
IRISSAK [1]

Answer:

instrumental backing

EXPLANATION:

The Funk Brothers were a group of Detroit-based session musicians who performed the backing to most Motown recordings from 1959 until the company moved to Los Angeles in 1972.

Reference:

Ryan, Jack (2016). Recollections, the Detroit Years: The Motown Sound by the People who Made it. Glendower Media. p. 102. ISBN 978-0914303190.

8 0
3 years ago
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