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3 years ago

Find all the real square roots of 0.0625

Mathematics

1 answer:

Fudgin [204]3 years ago

8 0

Answer and workings in the attachment below.

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Researchers investigated the possible beneficial effect on heart health of drinking black tea and whether adding milk to the tea

Elanso [62]

Answer:

(a) It is an experiment.

(b) Group III has been tested to compare the effect of tea

Step-by-step explanation:

24 volunteers are randomly selected to one of the three groups.

Group I drinks two cups of hot black tea without milk

Group II drinks two cups of hot black tea with milk

Group III drinks two cups of hot water but no tea.

At the end of the month, the researchers measured the change in each of the participant's heart health.

The average change of health status of three Groups can be measured and let it be X1', X2' and X3'. We can set up the hypothesis of no difference of heart health i.e H0 : µ1 = µ2 = µ3 against the alternative hypothesis that they are not equal. As the sample size is less than 30, we can use t-statistic.

Under the above logic, (a) it is an experiment.

(b) Group III has been tested to compare the effect of tea or to have comparison between GroupI and Group III.

4 0

3 years ago

Determine the ordered pair that satisfies the equation, 5x + 2y = 7.

AveGali [126]

Answer:

None of the first 4 do. so I guess the answers E.

Step-by-step explanation:

8 0

3 years ago

Solve and check 8-(6-8x) =4x+4

navik [9.2K]

Greetings!

"Solve and check $8-(6-8x)=4x+4$ "...

Solve for x:
 $8-(6-8x)=4x+4$
Remove the Parenthesis.
$8-6-8x=4x+4$
Simplify.
$2-8x=4x+4$
Add -4 to both sides.
$(2-8x)+(-4)=(4x+4)+(-4)$
Simplify.
$-2-8x=4x$
Add 8x to both sides.
$(-2-8x)+8x=(4x)+8x$
Simplify.
$-2=12x$
Divide both sides by 12.
$(-2)/12=(12x)/12$
Simplify.
$-0.166666667=x$

The answer is: x=-0.166666667

Hope this helps.
-Benjamin

7 0

3 years ago

Pls help pls help pls help

Yakvenalex [24]

3 is the correct answer Finn he is corn

3 0

3 years ago

Jefferson Elementary School is sending 8 of its students to a drumming contest in Orlando, Florida. The cost will be $588 per pe

Liula [17]

Answer:

4704

Step-by-step explanation:

8*588=4704

7 0

3 years ago