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2 years ago

Which of the following controls what enters or exits a cell?

Mathematics

1 answer:

zzz [600]2 years ago

7 0

Answer:

The cell membrane

Step-by-step explanation:

The function of the cell membrane is to regulate what forgien substances come in and out of the cell.

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Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's heigh

kodGreya [7K]

Answer: 2.11 s

Step-by-step explanation:

Given

Equation of rockets height is given by

$\Rightarrow h(t)=-8t^2+16+2$

Height will be zero once the rocket lands on the ground

So, we can write

$\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s$

7 0

2 years ago

Help please help please help please

marissa [1.9K]

Answer:

x=5

Step-by-step explanation:

I'm pretty sure it's x=5 because if you multiply that and the quadratic function it is -12 1/2 not 12 1/2 (hope this helps :)

8 0

3 years ago

Read 2 more answers

What is the following product? (2V7 +3V6)(5V2+4V3)

raketka [301]

$(2\sqrt{7}+3\sqrt{6})(5\sqrt{2}+4\sqrt{3}) \\\\\\ \begin{array}{lllllll} 10\sqrt{14}&+&15\sqrt{12}&+&8\sqrt{21}&+&12\sqrt{18}\\\\ &&15\sqrt{2^2\cdot 3}&&&&12\sqrt{3^2\cdot 2}\\\\ &&15\cdot 2\sqrt{3}&&&&12\cdot 3\sqrt{2}\\\\ &&30\sqrt{3}&&&&36\sqrt{2}\\\\ 10\sqrt{14}&+&30\sqrt{3}&+&8\sqrt{21}&+&36\sqrt{2}\\\\ 10\sqrt{14}&+&8\sqrt{21}&+&30\sqrt{3}&+&36\sqrt{2} \end{array}$

5 0

1 year ago

What is the solution to the equation squareroot 4t+5=3

zubka84 [21]

Answer:

Step-by-step explanation:

√(4t+5) = 3

4t + 5 = 9

4t = 4

t = 1

8 0

2 years ago

Read 2 more answers

Complete the steps to solve the equation -19x - 11 = -125.

amm1812

Answer:

Step-by-step explanation:

-19x-11= -125 add 11 to both sides

-19x= -114 divide by -19

x= 6

8 0

2 years ago