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Free_Kalibri [48]
3 years ago
12

A 78 gram sample of Uranium loses half of its mass each year. What is the exponential equation? Please explain why A is the corr

ect answer
A. y=78(0.5)^x


B. y=78(1.5)^x
Mathematics
1 answer:
Fiesta28 [93]3 years ago
8 0

Answer:

A

Step-by-step explanation:

The first answer is correct because we have a decay factor.

The sample is losing mass, so the number that is being multiplied by a power of x must be less than 1.

If the second answer were used, then the sample would be gaining mass.

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J is 14 less than 22 solve for j and find the equation
Bumek [7]

Answer:

j=8

Step-by-step explanation:

22-14=8

4 0
3 years ago
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Solve for x: - 6 < x - 1 < 9
dusya [7]

Answer:

-5<x<10

Step-by-step explanation: in these types of questions you have to leave x alone which means you have to do the following:

-6<x-1<9

when we throw -1 to the left side the solution would be like this -6+1=5

and when we throw it to the right side the solution would be 9+1=10

which means;

-5<x<10

8 0
4 years ago
What is the definition of the determinant
weeeeeb [17]

a quantity obtained by the addition of products of the elements of a square matrix according to a given rule.

4 0
3 years ago
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The function p(w)=238(1.6)^w represents the number of specialty items produced at the old factory w weeks after a change in mana
Alexxandr [17]

a.) w = 0

Old factory: p(w)=238(1.6)^w        Plug in 0

p(0)=238(1.6)^0        

When a number has an exponent of 0, the number becomes 1

p(0) = 238(1)

p(0) = 238


New factory: w = 0, p(0) or y = 190         (0,190)


238 - 190 = 48

During Week 0, 48 more specialty items were produced at the old factory than at the new factory.


Sorry I don't know how to do b or c

7 0
3 years ago
Answer all question
ch4aika [34]

Answer:

1. LCM of 18 & 12 = 36 minutes

2. 0.00095897

explanation.

2 18 2 12

____I______ ___l_________

3 9 2 6

____l_______. ___I_________

3 3 3 3

_____l________. ___l_________

l 1

18= 2×3×3 12=2×2×3

1 2 2 1

=1 × 3 =2 × 3

L.C.M= product of greatest power of each prime factor.

2 2

= 2 × 3

=4×9 = 36

hence, time taken by both to meet again

LCM of 18 & 12 =36 minutes

4 0
3 years ago
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