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SOVA2 [1]
3 years ago
14

Is y=1/2x-1 proportional

Mathematics
1 answer:
Ber [7]3 years ago
7 0

Answer: No

Step-by-step explanation: Since y=2x+1 does not pass through the origin (i.e. there exists the constant term of 1 ), the variables y and x are not directly proportional - though, they do have a linear relationship.

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Justin is at Bashas and sees a sign for 20% off ground beef. If the regular price is $10.50, what is the price after the discoun
Vinvika [58]

Answer:

$8.40

Step-by-step explanation:

"20% off" translates into multiplication of the regular price by (1 - 0.20), or 0.80:

The price after discount is 0.80($10.50) = $8.40

6 0
3 years ago
What is the slope of a line that is perpendicular to the line who’s equation is y=4/5x-3
alexandr402 [8]

This line y = 4/5 x - 3 has slope = 4/5

Perpendicular lines, slope is opposite and reciprocal so slope of a line that is perpendicular to the line y = 4/5 x - 3 is -5/4

Answer

- 5/4

8 0
3 years ago
Read 2 more answers
Please? I really need this answer if you can
Yanka [14]
From two to three there are 8 gaps and it is up to 7 so
Third answer 2 7/8
7 0
3 years ago
The population of bacteria in a culture doubles every 14 hours. How long will it take for
Snezhnost [94]

Answer:  22 hours 11 minutes

<u>Step-by-step explanation:</u>

P=P_o\cdot e^{(kt)}\\\\\text{Since the initial population is doubled in 14 hours, then:}\\2P_o=P_o\cdot e^{k\cdot 14}\\2=e^{14k}\\ln\ 2=ln\ e^{14k}\\ln\ 2=14k\\\\\dfrac{ln\ 2}{14}=k\\\\0.0495=k\\\\\\\text{Now that the k-value has been determined, we can find the time when the}\\\text{population is tripled:}\\3P_o=P_o\cdot e^{0.0495t}\\3=e^{0.0495t}\\ln\ 3=ln\ e^{0.0495t}\\ln\ 3=0.0495t\\\\\dfrac{ln\ 3}{0.0495}=5\\\\22.19=t\\\\22\ hrs +0.19\ hrs

22\ hours + \bigg[\dfrac{19}{100}=\dfrac{x}{60}\bigg]\\\\22\ hours + 11\ minutes

4 0
3 years ago
Super confused new topic please help
kumpel [21]

Answer:

1960cm squared

Step-by-step explanation:

in case you're still confused ask where you're still confused and I'll offer my assistance.good day.

5 0
2 years ago
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