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KiRa [710]
3 years ago
7

Check my answer?

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0
Yes, you are correct. Suppose the relationship is p=aq. Put p=10 and q=2 in, we can get p=5q. So when q=20, p=20*5=100. So the answer is D. Be confident with yourself~
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Given the rule: an=7(1/2)n-1 identify the first term
Shkiper50 [21]

Answer:

  • using the rule given: 2.5
  • using an exponential rule: 7

Step-by-step explanation:

Evaluating the linear rule given, for n = 1, we have ...

  a1 = 7(1/2)(1) -1 = 7/2 -1 = 5/2 = 2.5

_____

We suspect you may intend the exponential function ...

  an = 7(1/2)^(n-1)

Then, for n = 1, we have ...

  a1 = 7(1/2)^(1 -1) = 7(1) = 7 . . . . the first term is 7

_____

When writing an exponential expression in plain text, it requires the exponential operator, a caret (^). If the exponent contains any arithmetic, as this one does, it must be enclosed in parentheses.

3 0
3 years ago
Brendan has 33 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 615 cents, how many
Amanda [17]
If all were dimes, the value would be $3.30. Brendan has $2.85 more than that. Each quarter that replaces a dime increases the value by $0.15, so Brendan must have $2.85/$0.15 = 19 quarters.

Brendan has 14 dimes and 19 quarters.
6 0
2 years ago
Help me please
Nimfa-mama [501]
They are both in standard form.
7 0
3 years ago
What is 851.64 in expanded notation?
navik [9.2K]
8 x 100 = 800
5 x 10= 50
1x1=    1
6 x 0.10= 0.6
4 x 0.01 = 0.04
              = 851.64
7 0
3 years ago
I don't understand what it's asking
Arlecino [84]

Answer:

bdbdjsjsbsbsbbshssbdjdjdjsjhshshdjdd

4 0
2 years ago
Read 2 more answers
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