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Tpy6a [65]
2 years ago
8

What is the value of a? A. 12 B. 15 C. 17.25 D. 21.25

Mathematics
1 answer:
dimaraw [331]2 years ago
8 0

Answer:

C 17.25

Step-by-step explanation:

i think aanswer its c

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Please tell me the answer and explain
bezimeni [28]

Answer:

first box: 12

second box: 5.5

the boxes in chart in order is 12, 17.5, 23, 39.5

Step-by-step explanation:

I've done this before

7 0
3 years ago
A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour. Which equation represents how many grams of the
Dahasolnce [82]

The exponential equation that represents how many grams of the compound will remain after 8 hours is:

B: C=260(0.962)^8

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

A radioactive compound with mass of 260 grams decays at a rate of 3.8% per hour, hence the equation for the mass after t hours is given by:

A(t) = 260(1 - 0.038)^t

A(t) = 260(0.962)^t

After 8 hours, the amount is given by:

A(t) = 260(0.962)^8

Hence option B is correct.

More can be learned about exponential equations at brainly.com/question/25537936

7 0
2 years ago
Help me with this one
stepan [7]
You need to multiply by 10 2 times.
6 0
4 years ago
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If the figure is a polygon, name it by its number of sides.
maxonik [38]

Answer: five sides is the answer:))


Step-by-step explanation:


4 0
3 years ago
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What is the slope of the line that goes through the points (7,10) and (3,-3)
PilotLPTM [1.2K]
Ypu would subtract Y from the other points Y
- 3 - 10 =  - 13
Then you would subtract X from the ither points X.
3 - 7 =  - 4
Then you would put the Y value over the X
\frac{ - 13}{ - 4}
Then simiplify
\frac{13}{4}

7 0
3 years ago
Read 2 more answers
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