Me pueden ayudar porfa

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A scientist begins an experiment with a culture of 5 bacteria cells. Every hour, the number of bacteria cells triples. Which equation can be used to represent the number of bacteria cells, y, as it relates to time in hours, x?a. y = 5 xb. y = 3(5) xc. y = 3 xd. y = 5(3) x
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Which of the following statements is false? (5 points) Select one: a. The sum of two rational numbers is always rational. b. The product of a nonzero rational number and an irrational number is always irrational. c. The product of two rational numbers is always rational. d. The sum of two irrational numbers is always rational.

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Answer is d the sum of two irrational numbers is always rational.

Rewrite 5 2/3 as an improper fraction.

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5 2/3 would be 3 times 5 +2 think of it as starting the letter C from the bottom to the top multiply the bottom and middle add the top

If you do that you should get 17/3

Answer:

I think it is 17/3

Step-by-step explanation:

How many seconds in 2.6 days

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1 minute = 60 seconds
1 hour = 60 minutes = 3600 seconds
1 day = 24 hours = 1440 minutes = 86400 seconds
2.6 day = 2.6 * 86400 seconds = 224 640 seconds

Solve the equation and check your answer.
(that is one fifth )
1/5t-3=-17

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$(1)/(5) t$ - 3 = -17

First, simplify $(1)/(5) t$ to $(t)/(5)$ / Your problem should look like: $(t)/(5) - 3 = -17$
Second, multiply both sides by 5. / Your problem should look like: $t - 15 = -85$
Third, add 15 to both sides. / Your problem should look like: $t = -85 + 15$
Fourth, simplify -85 + 15 to get -70. / Your problem should look like: $t = -70$

CHECKING:
$(1)/(5) t - 3 = -17$
First, let t = -70 / Your problem should look like: $(1)/(5) x -70-3=-17$
Second, simplify $(1)/(5) x -70$ to $-(1)/(5)x70$ / Your problem should look like: $-(1)/(5) x 70-3=-17$
Third, simplify $(1)/(5) x70$ to $(70)/(5)$ / Your problem should look like: $- (70)/(5) -3=-17$
Fourth, since 14 goes into 5 to get 70, simplify the fraction by 14. / Your problem should look like: $-14-3=-17$
Fifth, simplify -14 - 3 to get -17 / Your problem should look like: $-17 = -17$

Answer: t = -70

How can we tell if a number is divisible by 4

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if a number ends in a two digit number that is divisible by 4 then the who number is divisible by 4.

eg: 608, 728

because 08 is divisble by 4 then so is 608 and the same for 28 and 728

The last two digits of the number are divisible by 4.

Find the measures of the interior angles.