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3 years ago

Is this a testable question ?

Biology

2 answers:

kotykmax [81]3 years ago

8 0

Yes because you can do a trial experiment to determine if a squeal like peanuts or not

solmaris [256]3 years ago

3 0

Yes, because you do not know if the squirrel like peanuts, so you will need to experiment✨

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A video game console manufacturer hired scientists and engineers to work on ways to improve the video cards used in their game s

Alex777 [14]

Answer: To obtain superior innovation

Explanation:

The company in other to be perceived above and to be preferred above their rivals, they are to create an innovation that is higher in quality and superiority to other game systems in other organisations

7 0

3 years ago

Wood deposits recovered from an archaeological site contain 36% of the C-14 they originally contained. How long ago did the tree

Veseljchak [2.6K]

Answer: It was obtained 8515 years ago

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process

a) to find the rate constant:

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

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

$k=\frac{0.693}{5760}=0.00012years^{-1}$

b) for completion of 36% of reaction

$t=\frac{2.303}{k}\log\frac{100}{36}$

$t=\frac{2.303}{0.00012}\log\frac{100}{36}$

t = 8515 years

The time was 8515 years.

3 0

3 years ago

3. Which organs are responsible for protecting the body? How?

Jlenok [28]

Answer:

Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel)

Explanation:

hope this helps

5 0

3 years ago

Read 2 more answers

What is the 95% CI for data set 2?

vesna_86 [32]

Answer: 20 ± 11.32

Explanation: Confidence Interval (CI) is an interval of values where there is a % certainty the true mean value lies in. For example, a 95% CI means there is a 95% certainty the true mean value lies in the interval.

For the data set 2, z-value for 95% confidence interval is z = 1.96

Formula to calculate CI is

x ± $z\frac{s}{\sqrt{n} }$