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3 years ago

13

Help please. I cant figure it out and it’s hard.

1 answer:

aivan3 [116]3 years ago

7 0

Answer:

The student is comparing the different heart rates due to the temperature. The independent variable is the Temperature and the dependent variable is the beats of the heart from the larva.

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Pls help me solve this question, also include step by step calculation ya. Thks

sp2606 [1]

$\displaystyle\\Answer:\ x=\sqrt{2}\ \ \ \ \ x=-\sqrt{2}\ \ \ \ \ x=\frac{ln5}{2}$

Step-by-step explanation:

$5x^2-x^2e^{2x}+2e^{2x}=10$

$Let:\ x^2=t \ \ \ \ \ e^{2x}=v\\Hence,\\5t-tv+2v^2=10\\5t-tv+2v^2-10=10-10\\5t-tv-10+2v^2=0\\t(5-v)-2(5-v)=0\\(5-v)(t-2)=0\\5-v=0\\5-v+v=0+v\\5=v\\5=e^{2x}$

<em>Prologarithmize both parts of the equation:</em>

$ln5=lne^{2x}\\ln5=2x*lne\\ln5=2x*1\\ln5=2x\\$

<u><em> Divide both parts of the equation by 2:</em></u>

$\displaystyle\\x=\frac{ln5}{2}$

$t-2=0\\t-2+2=0+2\\t=2\\x^2=2\\x=\sqrt{2} \\x=-\sqrt{2}$

6 0

1 year ago

HELP PLEASE ASAP

Vladimir79 [104]

By using dimensional analysis, this problem can be simple.

$100cm * \frac{1m}{100cm} = 1m$

B

4 0

3 years ago

Select all statements thats show the correct reasoning for finding 15 divided by 2/9

Anton [14]

No there is nothing here please provide answers

6 0

3 years ago

Chapter 7: Right Triangle Relationships and

Ipatiy [6.2K]

Answer:

the square of greater side is equal to the sum of two other side in right angled rectangle

Step-by-step explanation:

also known as trigonometry of Pythagoras.

5 0

3 years ago

Evaluate 1/4 c + 3D when c equals 6 and d equals 7

sergeinik [125]

Answer:

22.5

Step-by-step explanation:

1/4*6= 1.5

3*7= 21

21+1.5= 22.5

hope this helps <3

5 0

3 years ago