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.
Answer:
7) 16 sq units
8) L = 22 cm
Step-by-step explanation:
7) A = 1/2h·(sum of bases)
= 1/2(4)(5+3)
= 2(8) or 16 sq units
8) A (trapezoid) = 1/2(7)(10+12)
= 1/2(22)(7)
= 11(7) or 77 sq cm
To find 'l' in triangle:
A = 1/2·L·7
77 = 7L /2
7L = 154
L = 22 cm
<h3>5/6 × 3/10</h3>
<em>Multiply 5/6 by 3/10 (to do this,</em><em> multiply the numerator by the numerator </em><em>and the </em><em>denominator by the denominator).</em>
<h3>5 × 3/6 × 10</h3>
<em>Perform the</em><em> multiplications </em><em>in the </em><em>previous fraction.</em>
<h3>15/60</h3>
<em>Reduce the fraction </em><em>15/60</em><em> to its</em><em> lowest expression by extracting</em><em> and canceling 15.</em>
<h3>1/4 ≈ 0.25</h3>
The purchase price of the stock includes the commission paid
to the stockbroker. You have to multiply the cost per stock of the stock to the
number of shares purchased by Maureen to get the purchase price. You have to
multiply the purchase price with the percentage of commission to get the
commission. You add the purchase price and the commission to get the total
purchase price of the stock.
200 shares x $12.5 per share = $2,500
$2,500 x 1% commission
= $25
Total purchase price = $2,525