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DIA [1.3K]
4 years ago
7

Dorian posted two online videos on the same day.

Mathematics
2 answers:
vaieri [72.5K]4 years ago
7 0
Hi how do I answer hi how do I answer
Maslowich4 years ago
7 0

Answer: the answer is (The rate of change for the function for video A is constant, but the rate of change for video B is not constant.) So C.

Step-by-step explanation: We’re in the same class and I got this question right so your welcome :)

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To join a gym, you have to pay an initial fee of $50 and $30 per month. Write an equation representing total cost (t).
Vladimir [108]
50+30m= t

m: number of months
t: total
6 0
4 years ago
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The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length a
sukhopar [10]

Answer:

The length and width of the rectangle are 20 inches and 17 inches .

Step-by-step explanation:

Formula

Area of a rectangle = Length × Breadth

As given

The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches.

Let us assume that the length is denoted by l.

Thus

Breadth = l - 3

Put in the above formula

340 = l × (l - 3)

340 = l² - 3l

l² - 3l - 340 = 0

l² - 20l + 17l - 340 = 0

l(l-20) + 17 (l-20) = 0

(l - 20) ( l+ 17) = 0

l = 20

l = -17 (This valueof length is neglected because length cannot be negative.)

As l = 20 inches

Breadth = 20 - 3

             = 17 inches

Therefore the length and width of the rectangle are 20 inches and 17 inches .

4 0
3 years ago
Read 2 more answers
You measure 27 watermelons' weights, and find they have a mean weight of 71 ounces. Assume the population standard deviation is
velikii [3]

Answer:

(69.94, 72.06)

Step-by-step explanation:

Confidence Interval formula = Mean ± z × Standard deviation/√n

Mean = 71 ounces

Standard deviation = 2.8 ounces

z score = 95% confidence interval = 1.96

Confidence Interval = 71 ± 1.96 × 2.8/√27

= 71 ± 1.96 × 0.5388602512

= 71 ± 1.0561660924

71 - 1.0561660924

= 69.943833908 ounces

Approximately = 69.94 ounces

71 + 1.0561660924

= 72.0561660924 ounces

Approximately = 72.06 ounces

95% Confidence Interval = (69.94, 72.06).

5 0
3 years ago
Mike drove 397 miles on 8 hours. About how many miles did she drive each hour?
Alina [70]

Answer:

49.6

Step-by-step explanation:

just divide 397 by 8

3 0
3 years ago
Read 2 more answers
Im struggling on this problem PLEASE show the WORK (-x+3)-(x-5)
ANTONII [103]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

Let's simplify step-by-step.

− x + 3 − ( x − 5 )

Distribute the Negative Sign:

= − x + 3 + − 1 ( x − 5 )

= − x + 3 + − 1x + ( − 1 ) ( − 5 )

= − x + 3 + − x + 5

Combine Like Terms:

= − x + 3 + − x + 5

= ( − x + − x ) + ( 3 + 5 )

= − 2x + 8

Answer:

= − 2x + 8

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

5 0
3 years ago
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