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uranmaximum [27]
3 years ago
15

How much of a radioactive kind of silver will be left after 50 seconds in the half-life is 25 seconds and you start with 204gram

s?
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
7 0

Answer:

51 grams.

Step-by-step explanation:

After 25 seconds  204 * 1/2 = 102 grams is left.

So after 50 seconds ( 2 * 25), 102 * 1/2 = 51 g are left.

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Identify the focus, directrix, and axis of symmetry of 11x=y^2
ale4655 [162]

<u>Answers </u>

focus: (0, \frac{11}{4})

directrix: x = -\frac{11}{4}

AOS: y = 0

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

11x = y²

 x = \frac{1}{11}y²

 x = \frac{1}{11}(y - 0)² + 0

Vertex: (0, 0)

Axis of symmetry: y = 0

Focus: \frac{1}{4p} = a     a = \frac{1}{11}

\frac{1}{4p} = \frac{1}{11}

4p = 11

 p = \frac{11}{4} so, focus is: (0, \frac{11}{4})

Directrix: -p = -\frac{11}{4} so, directrix is: x = -\frac{11}{4}




8 0
3 years ago
What is the standard form of 46
Korolek [52]

Answer:

46

Step-by-step explanation:

46 is already in standard form

4 0
4 years ago
What are examples of the distributive property?
Elena L [17]
Here is an example:

3(4x +7)
2( 3 +5) =2( 3 ) = 2 ( 5 )
8 0
4 years ago
A fish tank contains eight algae-eaters, five catfish, and six tilapia fish. A storekeeper randomly selects two fish (one after
Montano1993 [528]

Answer:

P = 10/171

P = 0.058

The probability that both fish selected are Catfish is 0.0058

Step-by-step explanation:

Given:

The tank contains;

Algae eaters = 8

Catfish = 5

Tilapia fish = 6

Total number of fish = 8+5+6= 19

To determine the probability that both fish selected are Catfish P;

P = 5/19 × 4/18

( The number of the total number of fishes, and Catfish reduce by one after each selection because it is selected without replacement)

P = 10/171

P = 0.058

8 0
4 years ago
suppose the linear regression line y= 2.4x + 3.1 predicts the time,in minutes it takes you to be served at a food stand if there
Scorpion4ik [409]

Answer:

Just substitute "x" with "3".

Step-by-step explanation:

y = 2.4x + 3.1

y = 2.4(3) +3.1

y = 7.2 + 3.1

y= 10.3

Answer: 10.3 minutes

3 0
4 years ago
Read 2 more answers
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