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krek1111 [17]
3 years ago
9

7n2 + 5 = 453 Solve the quadratic function

Mathematics
2 answers:
Reptile [31]3 years ago
8 0

7n^2 + 5 = 453

Subtract 5 from both sides:

7n^2 = 448

Divide both sides by 7:

N^2 = 64

Take the square root of both sides:

N = 8

Olenka [21]3 years ago
6 0

See attachment for math work and answer.

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D = {x|x is a whole number}
pickupchik [31]

The given statement is true.

Step-by-step explanation:

Given sets are:

D = {x|x is a whole number}

E = {x|x is a perfect square between 1 and 9}

F = {x|x is an even number greater than or equal to 2 and less than 9}

as the sets are given in set builder notation,, we will first write the sets in set notation.

So,

D = {0,1,2,3,4,...}

E = {4,9}

F = {2,4,6,8}

Now,

EUF = {4,9} U {2,4,6,8}

= {2,4,6,8}

Hence,

The given statement is true.

Keywords: Union,sets

Learn more about sets at:

  • brainly.com/question/9381523
  • brainly.com/question/9231234

#LearnwithBrainly

4 0
3 years ago
Need help due tonight!!
Luba_88 [7]

Answer:

64

Step-by-step explanation:

Each side length is being multiplied by 8

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2 years ago
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AlladinOne [14]

Answer:

10f ?

Step-by-step explanation:

fx10

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1. What is the y-inter slope of the graph? What does it mean in terms of this situation?
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Answer:

1. the y-intercept is 9.5 and it means the starting length of the candle

2. the slope is -1/2 and it means that the candle burns 1/2 an inch every hour

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