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wariber [46]
3 years ago
5

I NEED HELP PLEASE SOMEBODY HELP

Mathematics
2 answers:
spin [16.1K]3 years ago
6 0

not a funtion, is a funtion, not a funtion, is a function

Serjik [45]3 years ago
6 0

If the x-coordinate (first value of the ordered pair) shows up more than once, the relation is <em>not a function</em>.

Top to bottom, you have ...

  • NOT . . . . (3, _) appears twice
  • IS
  • NOT . . . . (4, _) appears twice
  • IS

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Twice the sum of three and a number is 30. Find the number
DedPeter [7]

9514 1404 393

Answer:

  • 2(x +3) = 30
  • 12

Step-by-step explanation:

When x represents the number, "the sum of 3 and a number" is (x+3). Twice that sum is 2(x+3). "Is 30" means this expression is equal to 30:

  2(x +3) = 30 . . . . an equation for the given conditions

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We can solve this equation by dividing by 2:

  x + 3 = 15

  x = 12 . . . . . . subtract 3

The number is 12.

5 0
3 years ago
What is 279 ÷34 estimated
Anestetic [448]

279/34 = 8.20588235294

But if you would like to round it up it would be 8.2 or 8.21 depending on what you'd like to round it up to.

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3 0
3 years ago
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Dimas [21]

Answer:

5 min

Step-by-step explanation:

I think its 17- 2ft (which was already dug)

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4 0
2 years ago
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One number is eight more than a second number. Five times the first is 8 less than 2 times the second. Find the numbers.
Elena-2011 [213]

Step-by-step explanation:

let the 2 numbers be x and y.

x - 8 = y --(1)

5x = 2y - 8 --(2)

sub (1) into (2):

5x = 2(x - 8) - 8

5x = 2x - 24

3x = -24

x = -8

sub x = -8 into (1):

y = -8 - 8 = -16

first number is -8 and second number is -16.

Topic: algebraic equations + simultaneous equation

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

4 0
2 years ago
You are creating a logo for a local company in the shape of an isosceles triangle. The legs measure 5 inches each. What is the g
Bumek [7]

Answer:

9 inches

Step-by-step explanation:

Here, we want to know the greatest length of the third side

We apply the triangle inequality theorem here

To get the third side, then the sum of the lengths of the two must be greater than the measure of the third side

let us call the third side x

Then;

5 + 5 > x

10 > x

The highest whole number before 10 is 9: so it is the greatest possible whole number the base of the isosceles triangle can have

7 0
2 years ago
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