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iren2701 [21]
2 years ago
12

What do I write????!??!!????????!!!!!

Mathematics
2 answers:
riadik2000 [5.3K]2 years ago
7 0
1. Do they match? No
How do you know? When substituted y = 3(2) - 4 is 2
y = 3(4) - 4 is 8
y = 3(8) - 4 is 20 not 14. So the table isn’t fully correct.

2. Do they match? No
How do you know? Because it says she walks UP the stairs not down. So -2 doesn’t make sense.

3. Do they match? Yes
How do you know? 0 means that the pile didn’t start with 6 so when you add 3 to 0, it’s 3. (duh lol)

On day 1, it starts with 6, (1)(6) = 6, and then they added 3 rocks, so it’s 9.

Day 2, twice as many rocks, so it starts with 12 now. + 3 is 15.

Day 3 starts with 18 rocks now. + 3 is 21.

attashe74 [19]2 years ago
3 0

Answer: Write your answers in the box, if you have spaces.

Step-by-step explanation:

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Eight less than the product of 7 and a number is 3. Use the variable w for the unknown number
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W = unknown number
7w - 8 = 3    (product of 7 and a number, w, subtract 8) is 3
7w = 11
w = 11/7


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Thallium-210 has a half-life of 1.32 minutes. Find an equation for the percent of Thallium-210 sample that remains after t minut
Lady bird [3.3K]

Answer:

  p(t) = 100%·2^(-t/1.32)

Step-by-step explanation:

The equation for exponential decay is ...

  (remaining amount) = (initial amount)·2^(-t/(half-life))

Here, we can represent the percentage remaining by p(t) and the initial amount by 100%. Then, for a half-life of 1.32 minutes, the amount remaining is ...

  p(t) = 100%·2^(-t/1.32) . . . . . where t is in minutes

_____

Alternate functional forms are possible, such as ...

  p(t) = 100%·e^(-0.525112t)

  p(t) = 100%·0.591489^t

4 0
2 years ago
ASAP answer it please.!!!!!!!!!!!!!!!!!!! thank uuu
masya89 [10]

Answer:

X=120 and y=10,z=120

Step-by-step explanation:

corresponding angles

thus 120=(13y-10)=x

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Alex’s printer can print 8 photos in 12 minutes.
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Answer:

B and D

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