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lesya [120]
3 years ago
11

Is this chart proportional. Yes or No. Why? (1,40), (2,50), (4,70), (7,80)

Mathematics
2 answers:
posledela3 years ago
8 0
Yes because the input & out put number are not the same
Amiraneli [1.4K]3 years ago
3 0

Answer:

(1,40) equation: y=40x

(2,50) equation: y=25x

(4,70) equation: y=17.5x

(7,80) equation: y=11.43x

does not represent a proportional relationship because they all have different equations.

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an entertainment firm offers several DJ choices and light show that range in price based on the rental time period. the DJ's cos
Mnenie [13.5K]

Answer:

219 + 159 <= x <= 369 + 309

378 <= x <= 678

Step-by-step explanation:

4 0
2 years ago
if a book cost 13.56 and its been 2 years since turned in and the fine is 0.05 a day how much would it be now
Gala2k [10]
I think it is $50.06.
I used a calculator for this.

Hope this helps! :)

8 0
4 years ago
Read 2 more answers
if x-1 is a factor of P(x)=x^3- 5x^2 + 7x-3 which of the following represents the complete factorization for P(x)?​
kozerog [31]

Answer:

P(x) =  (x-1)² (x-3)

Step-by-step explanation:

P(x)=x³- 5x² + 7x-3 = x² (x-1) - 4x(x-1) + 3(x-1) = (x²-4x+3)(x-1)

P(x) = (x-1)(x-3)(x-1) = (x-1)² (x-3)

3 0
4 years ago
7/8 in decimal and percent form please and thank you
svetlana [45]

Answer:    Decimal: 0.875       Percent: 87.5%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Could use some help please and thank you quickly tho it’s timed
andriy [413]

Answer:

option c)

d = 1

Step-by-step explanation:

Given the equation in the question,

-3d / (d² - 2d - 8) + (3 / d-4) = (-2 / d+2)

quadratic factorisation

-3d / (d+2)(d-4) + (3 / d-4) = (-2 / d+2)

-3d / (d+2)(d-4) = (-2 / d+2) - (3 / d-4)

taking LCM on right side

-3d / (d+2)(d-4) = ( -2(d-4)  -  3(d+2)) / (d+2)(d-4)

canceling  (d+2)(d-4) on both sides

-3d = -2(d-4)  -  3(d+2)

-3d = -2d + 8 - 3d - 6

-3d + 2d + 3d = 8 - 6

2d = 2

d = 1

5 0
3 years ago
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