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elixir [45]
3 years ago
8

I need help!?!?!?!??!?!?!?!?!?!?! Lol help neededdddd

Mathematics
2 answers:
erastova [34]3 years ago
7 0

Answer:

<u>The</u><u> </u><u>first</u><u> </u><u>graph</u>

Step-by-step explanation:

x + 5 \geqslant 10 \\ x \geqslant 5

Anettt [7]3 years ago
6 0

Answer: Choice A

Filled in circle at 5; shading to the right

================================================

Explanation:

Think of it as x+5 = 10. You'd solve for x by subtracting 5 from both sides. This is to undo the addition operation.

So you'll do the same for the inequality to get x \ge 5. The graph of which consists of a closed filled in circle at 5 on the number line. Then we shade to the right. This visually describes any x value that is 5 or larger.

So that's why the answer is choice A

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Thomas has $6.35 in dimes and quarters. The number of dimes is three more than three times the number of quarters. How many quar
mr Goodwill [35]

Answer:

He has 11 quarters

Step-by-step explanation:

* Lets study the information in the problem to solve it

- The value of dimes and quarters is $6.35

- There are dimes and quarters

- The dime = 10 cents

- The quarter = 25 cents

* We must change the money from dollars to cents

∵ $1 = 100 cents

∴ $6.35 = 6.35 × 100 = 635 cents

- The number of dimes = 3 + 3 × number of quarters

* Let number of dimes is D and number of quarter is Q

∴ D = 3 + 3Q

∴ 10D + 25Q = 635

* Substitute the value of D from first equation in the second equation

∴ 10(3 + 3Q) + 25Q = 635 ⇒ open the bracket

∴ 10(3) + 10(3Q) + 25Q = 635

∴ 30 + 30Q + 25Q = 635 ⇒ collect like terms

∴ 30 + 55Q = 635 ⇒ subtract 30 from both sides

∴ 55Q = 605 ⇒ divide both sides by 55

∴ Q = 11

* He has 11 quarters

5 0
3 years ago
If the mean of five values is 8.6 and four of the values are 10, 7, 8, and 7, find
Anna007 [38]

Answer:

The fifth value is 11

6 0
2 years ago
I need immediate help
Greeley [361]

Answer:

when we put 1 from a2 we can say that a2 equal to 2 because 2.5^n-1= 2

Step-by-step explanation:

answer is b

7 0
3 years ago
Write the opposite polynomial for -3x ^3+12x-4
ValentinkaMS [17]

Answer:

3x³ - 12x + 4  

Step-by-step explanation:

The opposite of a polynomial P is -P.

You find the opposite of P by multiplying it by -1.

 P = -3x³ + 12x - 4

-P = (-1)( -3x³ +       12x   -      4)     Distribute -1 to each term

    = (-1)(-3x³) + (-1)(12x)  - (-1)(4)     Multiply each coefficient by -1

    =       3x³  +     (-12)x -     (-4)

   =       3x³  -        12x   +     4

8 0
3 years ago
Can someone help me with this ?
zhannawk [14.2K]

Answer:

50

Step-by-step explanation:

12x + 15 = 5x +  85   {Subtract 15 from both sides}

12x + 15 - 15 = 5x + 85 - 15  

          12x = 5x + 70        {Subtract 5x from both sides}

12x - 5x   = 70

         7x = 70         {Divide both sides by 7}

          x = 70/7

x = 10

∠U = 5x = 5*10 = 50

7 0
3 years ago
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