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vivado [14]
3 years ago
6

Eric starts with 10 milligrams of a radioactive substance. The amount of the substance decreases by 12 each week for a number of

weeks, w. He writes the expression 10(12)w to find the amount of radioactive substance remaining after w weeks. Andrea starts with 1 milligram of a radioactive substance. The amount of the substance decreases by 20% each week for a number of weeks, w. She writes the expression (1−0.2)w to find the amount of radioactive substance remaining after w weeks. Use the drop-down menus to explain what each part of Eric’s and Andrea’s expressions mean.
Mathematics
2 answers:
Nady [450]3 years ago
7 0

Answer:

In Pic

Brainliest?

Step-by-step explanation:

Vesna [10]3 years ago
6 0

Answer: Mark as brainliest "If" help

Step-by-step explanation: Hope It helps,,

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The graph of a quadratic function has a minimum at (0, 2). The graph contains the point (-3, 11). What is another point on the g
NemiM [27]

Answer:

Step-by-step explanation:

Graphs of quadratics are symmetrical about the vertex (minimum or maximum point).  

The x value of the point (-3, 11) is 3 units to the left of the vertex (0, 2), the x value that is 3 units to the right of the vertex will have the same y value, so the point

(3, 11) is also on the graph

8 0
4 years ago
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How to find the constant of a function.
Vedmedyk [2.9K]

Answer: What Is a Constant Function?

A constant function is a function having the same range for different values of the domain. Graphically a constant function is a straight line, which is parallel to the x-axis. The domain of the function is the x-value and is represented on the x-axis, and the range of the function is y or f(x) which is marked with reference to the y-axis.

Step-by-step explanation:

4 0
3 years ago
Marcia says she can use rounding to find the exact product of 6x75. She says that since 75 is halfway between 7 tens and 8 tens
Mazyrski [523]
Yes because 6x75=450
6x70=420
6x80=480

So 420+30=450
450+30=480
5 0
3 years ago
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What is the equation, in vertex form, of the quadratic function that has a vertex at V(−2, −6) and passes through point P(−4, −7
Roman55 [17]

Answer:

<h3>             f(x) = -¹/₄(x + 2)² - 6</h3>

Step-by-step explanation:

The vertex form of an equation of the parabola:  

                                                         f(x) = a(x - h)² + k

vertex is (-2, -6)  so  h = -2,  k = -6

so:

      f(x) = a(x - (-2))² + (-6)

      f(x) = a(x + 2)² - 6

the parabola goes through the point (-4, -7) so for x=-4,  f(x)=-7

  -7 = a(-4+2)²  - 6

  -7 +6 = a(-2)² - 6 +6

 - 1  = a(4)

     a = -¹/₄

Therefore the equation of the parabola in vertex form:

                                 f(x) = -¹/₄(x + 2)² - 6

4 0
3 years ago
OK!!! I NEED HELP AGAIN AND ITS HONESTLY SUPER EASY :/ I DONT KNOW WHY IM NOT doing it BY MYSELF BUTTTTT---- GIVING BRAINLIEST,
slavikrds [6]

Answer: 16 fl oz

Step-by-step explanation:

4 0
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