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Scilla [17]
2 years ago
12

Help please

Mathematics
1 answer:
ddd [48]2 years ago
7 0

Answer:

  • B. When the peak temperature is 40°C, 72 units of electricity are used on average.

Step-by-step explanation:

We see the relationship is closer to linear in the interval 30 to 40

<u>Approximate points:</u>

  • (30, 34) and (34, 54)

<u>The slope of the line:</u>

  • m = (54 - 34)/(34- 30) = 20/4 = 5

<u>The line is:</u>

  • y - 34 = 5(x - 30)
  • y = 5x - 116

<u>At x = 40, the value of y would be:</u>

  • y = 5*40 - 116 = 84

The closet option is B

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A box contains four equal sized cards labeled 1,3,5,7 Tim will select one card from the box What is the probability that Tim wil
Mice21 [21]

Answer:

0 is the probability that Tim will select a card labeled with a number 6.

Step-by-step explanation:

We are given the following in the question:

Number of cards = 4

Cards with labels:

1,3,5,7

Tim will select one card from the box. We have to find the probability that Tim will select a card labeled with a number 6.

Formula:

\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}

\text{P(Label 6) = }\dfrac{0}{4}= 0

0 is the probability that Tim will select a card labeled with a number 6. Thus, it is an impossible event.

4 0
3 years ago
Help!!!! YOU WILL BE REWARDED WITH BRAINLIEST AND 15 POINTS! HELP ASAP LOOK AT MY FILES THAT I UPLOADED
Naily [24]

Answer:

The second box plot best represents the data

6 0
2 years ago
Thank u :)!! for the help
Simora [160]

Answer:

$0.75

Step-by-step explanation:

Consider any one of the values given in the table.

Cost of 5 tickets = $3.75

So, cost of 1 ticket

= $3.75/5

= $0.75

Verification:

Verify the answer by other values.

Cost of 10 tickets = $7.50

So, cost of 1 ticket

= $7.50/10

= $0.75

Cost of 15 tickets = $11.25

So, cost of 1 ticket

= $11.25/15

= $0.75

Cost of 20 tickets = $15.00

So, cost of 1 ticket

= $15.00/20

= $0.75

The cost of 1 ticket is same in all cases.

Hence, verified.

5 0
3 years ago
Katie could already play five songs on her harp. She decided to learn to new songs each week. If S = songs and W = weeks, which
denis-greek [22]

Answer:

she would have to record a the amount of songs She did every week

5 0
2 years ago
Hey guys, I'm relearning some Algebra and was confused about this problem. In the equation, the problem was divided by 3. This m
spayn [35]

Answer and Step-by-step explanation:

The signs didn't really "swap". Instead, the whole function was divided by -1, or we could say the function was divided by -3. That would turn:

-18x² - 15x + 3 = 0

into

(-18 / -3)x² - (15 / -3)x + (3 / -3) = 0

6x² + 5x - 1 = 0

And that gives the "swapped signs".

4 0
3 years ago
Read 2 more answers
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