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3 years ago

Why does an investigator change the value of a variable parameter during an investigation

Mathematics

2 answers:

Inessa05 [86]3 years ago

7 0

To understand the case clearly
As we do...to understand questions clearly

hope i helped u

plz mark the brainliest

leva [86]3 years ago

5 0

So the scientist can it it eaily

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A teenager’s heart pumps an average of 7200 L of blood every 24 hours. What is the rate of change of volume of blood?

love history [14]

Answer:

300L per hour

Step-by-step explanation:

The rate of change of volume of blood pumped by the teenager's heart expresses the volume of blood pumped with respect to hour.

Rate of change of volume of blood = $\frac{volume of blood}{time}$

= $\frac{7200L}{24}$

= 300L/hour

The rate of change of volume of blood by the teenager's heart is 300 litres per hour. This implies that his/ her heart pumps 300 litres of blood every hour.

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3 years ago

Rewrite (21+31).4 using the disbributive property of multiplication over addition

Mamont248 [21]

Answer: evaluate it is 52

Step-by-step explanation:

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3 years ago

HELP BY FIVE MINUTES PLEASE

kati45 [8]

Those are adjacent angles. They equal 180 degrees.

10x-20+6x+8= 180

16x-12=180

Add 12.

16x= 192

x=12

I hope this helps!
~kaikers

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3 years ago

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Vladimir [108]

56.3 I believe is the answer

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Cheryl wants to have $2300 in spending money to take on a trip to Disney World in three years. How much must she deposit now in

Savatey [412]

Use the compound amount formula:

$2,300 = P(1+0.02)^3. Solve this for P:

P = $2,300 / (1.02)^3 = $2167.34.

By depositing $2,167.34 now, Cheryl would have $$2300 after three years.

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3 years ago