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ss7ja [257]
2 years ago
6

A sample contains 300 grams of carbon-11, which has a half-life of 20 minutes.

Mathematics
1 answer:
vladimir2022 [97]2 years ago
8 0

Answer:

Step-by-step explanation:

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Are gas bills, water bills, sewage bills, electricity bills fixed or variable expenses
ratelena [41]
The answer is variable expenses.
6 0
3 years ago
Keith bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He pa
ss7ja [257]

Answer: desktop = $1750, laptop = $1900

<u>Step-by-step explanation:</u>

Let x represent the cost of the desktop

then x + 150 is the cost of the laptop.

.07x + .055(x + 150) = 227

.07x + .055x + 8.25 = 227

.125x = 218.75

x = 1750

desktop (x) = $1750

laptop (x + 150) = $1750 + $150 = $1900

5 0
3 years ago
Simplify 3(x+2)-5x<br><br>1. 6-2x<br>2. 8x+2<br>3.-2x+2<br>4.2x+6​
gulaghasi [49]

Answer:

-2x + 6

Step-by-step explanation:

Step 1: Write expression

3(x + 2) - 5x

Step 2: Distribute

3x + 6 - 5x

Step 3: Combine like terms

-2x + 6

7 0
2 years ago
Read 2 more answers
Which function is a quadratic function? F(x) =2x^2, g(x) =5x^3,k(x)=-x,b(x)=-9x^4
Katen [24]

Answer:

F(x)=2x^2

Step-by-step explanation:

Basically, a quadratic function has x^2 in it (standard form ax^2+bx+c with non-zero a). The others have x^3, -x, x^4, etc., which clearly are NOT x^2.

5 0
2 years ago
Helppppppppppppppppp​
Sergeeva-Olga [200]
<h2>Answer: </h2>

15% of $49.64

=> 15/100 × 49.64

=> $7.446.

<u>After rounding to the nearest ten</u>,

=> <u>$7.5</u>

8 0
2 years ago
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