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shutvik [7]
3 years ago
5

The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant

ity to fall to half its original amount.Carbon 14 has a half-line of 5730 years.Suppose given samples of carbon 14 weigh 5/8 of a pound and 7/8 of a pound.What was the total weight of the samples 11,460 years ago?
Mathematics
1 answer:
NikAS [45]3 years ago
4 0

Answer:

That's two half lives. 5/8 * 2 * 2 = 20/8 = 5/2 pounds7/8 * 2 * 2 = 28/8 = 7/2 pounds

Step-by-step explanation:

Brainliest plz?

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3. How is the Fundamental Theorem of Algebra true for quadratic polynomials?
myrzilka [38]

Answer:

Step-by-step explanation:

Theorm-The Fundamental Theorem of Algebra: If P(x) is a polynomial of degree n ≥ 1, then P(x) = 0 has exactly n roots, including multiple and complex roots.

Let's verify that the Fundamental Theorem of Algebra holds for quadratic polynomials.

A quadratic polynomial is a second degree polynomial. According to the Fundamental Theorem of Algebra, the quadratic set = 0 has exactly two roots.

As we have seen, factoring a quadratic equation will result in one of three possible situations.

graph 1

The quadratic may have 2 distinct  real roots. This graph crosses the

x-axis in two locations. These  graphs may open upward  or downward.

graph 2

It may appear that the quadratic  has only one real root. But, it  actually has one repeated root.  This graph is tangent to the x-axis  in one location (touching once).

graph 3

The quadratic may have two  non-real complex roots called  a conjugate pair. This graph will  not cross or touch the x-axis, but  it will have two roots.

6 0
3 years ago
Click photo for question
Lana71 [14]

In a triangle when an angle between two equal length sides is 60 that means that the triangle is equilateral.
6 0
3 years ago
A police officer wears a belt that carries an extra 10 pounds on their waistline. The police officer weighs p pounds.
Lelechka [254]

Answer: T = 10p

Step-by-step explanation: Since we don't know what is the total weight, we put the an variable, T to represent the total weight. The 10p means that the poilce officer gained 10 Pounds.

3 0
3 years ago
What is equivalent to 7-2(x+2)<-4-3(1-x)
Alex_Xolod [135]

after solving 7-2(x+2) we get x>2

Step-by-step explanation:

We need to find the value of x in:

7-2(x+2)

Solving:

7-2(x+2)

So, after solving 7-2(x+2) we get x>2

Keywords: Solving the expression

Learn more about Solving the expression at:

  • brainly.com/question/9390381
  • brainly.com/question/5723059
  • brainly.com/question/6075514

#learnwithBrainly

3 0
3 years ago
A wedding dress was marked up 35% and is now selling for $270.00. What was the original price of the dress?
qaws [65]
$270 equals 135% of the original price

270/x=135/100

135*2=270
100*2=200

Final answer: $200
5 0
3 years ago
Read 2 more answers
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