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KiRa [710]
3 years ago
6

Just answer the question below in the screenshot it!! Good luck!

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0

Answer:

it would be c

Step-by-step explanation:

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A 30 gram sample of a substance that's used to sterilize surgical instruments has a k-value of 0.1235. Find the substances half
jok3333 [9.3K]

Answer : The substances half life in days is, 5.6 days.

Step-by-step explanation :

Half life : It is defined as the amount of time taken by a radioactive material to decay to half of its original value.

All radioactive decays follow first order kinetics.

The relation between the half-life and rate constant is:

k=\frac{0.693}{t_{1/2}}

where,

k = rate constant = 0.1235 per days

t_{1/2} = half-life

Now put all the given values in the above formula, we get:

0.1235\text {days}^{-1}=\frac{0.693}{t_{1/2}}

t_{1/2}=5.6\text{ days}

Thus, the substances half life in days is, 5.6 days.

5 0
3 years ago
What is the measure of angle I, m
strojnjashka [21]

Answer:

angle I =110

70 +I = 180 (opp side of parallelogram are equal)

I = 180 - 70

angle I =110

3 0
3 years ago
F(x) = 2x2 – 15<br> Find f(-2)
bogdanovich [222]
Wherever you see an x, replace it with -2,
So f(-2) = 2(-2^2) -15
= (2x4)-15
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8 0
3 years ago
At oceanside middle school 110 students tried out for the football team only 80% of the students that tryout make the team how m
Olenka [21]

Step-by-step explanation:

answer is 22 students in the team

<em>how </em><em>do </em><em>u </em><em>get </em><em>it? </em>

you know it is 80% of the students went for try out so you do 100% - 80% give you 20% students the number of students in the team already. so you do 20 / 100 x 110 students which already in the whole school over 1 which would give it 22

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3 years ago
What's the awnswer to 10 divided by 2/7?
Dvinal [7]
34.48

(2/7=.29, 10/.29=34.48)
4 0
3 years ago
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