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3 years ago

A one-celled organism that has a nucleus is a _______

2 answers:

5 0

1. prokaryote

2. they absorb water that surrounds them from moist, shadowy areas.

3. chloroplasts

4. reptiles have gills that take oxygen from water

5. false

defon3 years ago

3 0

All plants have a chloroplasts

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Find a substance half-life in days. round your answer to the nearest tenths

jeka57 [31]

A 33 gram sample has k value of .1124
(Actually I think the problem SHOULD be worded: A 33 gram sample has k value of -.1124/days)

See attached graphic:
Half-Life = ln (.5) / k
Half-Life = -.693147 / -.1124/days
Half-Life = 6.1667882562 days

Source:
http://www.1728.org/halflif2.htm

3 0

3 years ago

Read 2 more answers

Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water

Hoochie [10]

Answer:

Step-by-step explanation:

You have to use ratios. If 5 of 12 members bought water, then x of 168 members will buy water.

$\frac{5}{12} = \frac{x}{168}\\12x = 840\\x = 70$

70 members will buy bottled water.

8 0

3 years ago

3(x-2)+2(x+1)=-14 plz show work

Rom4ik [11]

Hello!

First, let's write the problem.
$3\left(x-2\right)+2\left(x+1\right)=-14$
Apply the distributive property on the left side of the equation.
$=3x-6+2x+2$
Add like terms.
$=5x-4$
Let's plug that in into the original equation.
$5x-4=-14$
Add 4 to both sides.
$5x-4+4=-14+4$
$5x=-10$
Divide both sides by 5.
$\frac{5x}{5}=\frac{-10}{5}$

Our final answer would be,
$x=-2$

You can feel free to let me know if you have any questions regarding this!
Thanks!

- TetraFish

5 0

3 years ago

Read 2 more answers

The diameter is 10ft what is the radius

inessss [21]

Radius- 5

The radius is half, so if you want to find the radius, you have to see what if half of the diameter, which is 10. So 10 divided by 2 is 5 which is the radius. Easy.

3 0

3 years ago

What is the angle of Z?

gizmo_the_mogwai [7]

Answer:

Angle Z is 33.

Step-by-step explanation:

Angle Z is also 33. X and Z are equivalent angle therefore it has to be 33 as well.

3 0

3 years ago