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qaws [65]
3 years ago
15

Select the correct answer.

Mathematics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

An experimental study because it will give the most accurate results.

Step-by-step explanation:

The observational study could also be somewhat useful, but the most accurate results will come from an experimental study. You will test the difference in DNA, blood pressure, and such. Whilst, the observational study, you only can observe the effects from the outside. The sample studies mean nothing because you can't test both sides of the complete study.

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Please solve with explanation 30 points
kumpel [21]

Answer:

Dwow haha salamat sa poiñts idolo stay safe hakd9g

5 0
2 years ago
If k is a positive integer and n = k(k + 7), is n divisible by 6 ? (1) k is odd. (2) When k is divided by 3, the remainder is 2.
olganol [36]

Answer:

1.) Yes

2.) Yes

Step-by-step explanation:

Given that

n = k(k + 7)

If k is a positive integer and n = k(k + 7), is n divisible by 6 ?

(1) k is odd. Yes.

Let assume that k = 3

Then, n = 3(3 + 7)

n = 3 × 10

n = 30.

30 is divisible by 6.

(2) When k is divided by 3, the remainder is 2. That is,

Let k = 5

Then,

5/3 = 1 remainder 2

Substitute k into the equation

n = k(k + 7)

n = 5(5 + 7)

n = 5 × 12

n = 60

And 60 is divisible by 6.

Therefore, the answer to both questions is Yes.

5 0
3 years ago
Sarah works at a zoo.
ipn [44]

Answer:

An elephant pregnancy lasts around 22 months, meaning that new born baby elephants are not small! A baby elephant is called a calf and can weigh between 200 and 300 lbs and stand about 3 feet (1 m) tall.

7 0
3 years ago
Read 2 more answers
Please help...............................!
arlik [135]
Class F=36.6666666667%
class E=33.3333333333%
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4 0
3 years ago
Consumer Math The sales tax in the town where Amanda lives is 7%. Amanda paid $35 in sales tax on a new stereo. What was the pri
Natasha2012 [34]

Answer

Find out the what was the price of the stereo .

To prove

Let us assume that the price of the stereo be x .

As given

Consumer Math The sales tax in the town where Amanda lives is 7%.

7% is written in the decimal form

= \frac{7}{100}

= 0.07

As given

Amanda paid $35 in sales tax on a new stereo .

Than the equation becomes

x × 0.07 = 35

x = \frac{35}{0.07}

solving the above

x = $ 500

Therefore the price of the stereo is $ 500 .

Hence proved


5 0
3 years ago
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