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Semenov [28]
3 years ago
12

Can someone help me please these are my last 2 questions thank you so much if you answer

Mathematics
2 answers:
Slav-nsk [51]3 years ago
6 0
Number 7 is a. 0.013
number 8 is c.3
_
5
Bumek [7]3 years ago
5 0
0.013 its A........................

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GET 5 STARS, THANKS, AND BRAILIEST!!!
Scrat [10]

Answer:

its (7,6)

Step-by-step explanation:

2x + y = 20

2(7) + 6 = 20

14 + 6 = 20

20 = 20

6x - 5y = 12

6(7) - 5(6) = 12

42 - 30 = 12

12 = 12

5 0
2 years ago
If a△ b=a2+ab−b2, then find (3 △ 2) △ 13. WILL MARK BRAINLIEST PLS HELP!!!!!!!!!!!!!!!!!!!!
Olenka [21]

Answer:

The answer is

<h2>18</h2>

Step-by-step explanation:

a ∆ b = a² + ab + b²

(3 ∆ 2)

a = 3 b = 2

(3 ∆ 2) = 3² +3(2) + 2²

= 9 + 5 + 4

= 9 + 9

= 18

Hope this helps you

7 0
2 years ago
Read 2 more answers
Solve for the variable <br><br><br> u^2 + 2 = 11
stira [4]

Answer:

There are two roots:  -3 and 3

Step-by-step explanation:

Combine the like terms first.  We get u^2 = 9.

There are two roots:  -3 and 3.

8 0
3 years ago
Don’t understand that problem
nata0808 [166]

Answer:

  (2c³ -20c² -10c) -(c² -40c +100)

Step-by-step explanation:

<u>Profit</u>

For a problem involving cost, revenue, and profit, you are expected to know that <em>profit is the difference between revenue and cost</em>. That is, if it costs you $2 to make a necklace you sell for $10, your profit is $10 -2 = $8.

<u>Problem</u>

The problem gives you polynomial expressions for revenue and cost, and asks you to combine them to make an expression for profit. In this first part, we simply show <em>how</em> we will combine them. (We presume a later part of the question will ask you to simplify the result.)

  profit = revenue - cost

Substituting the given expressions, we have ...

  profit = (2c³ -20c² -10c) -(c² -40c +100) . . . . . matches last choice

5 0
2 years ago
Helpppppppppppppppppppppppppppppppppppppppppppp​
azamat

Answer:

I can help

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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