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3 years ago

How do cells maintain homeostasis? Describe one way a cell will maintain stable internal conditions.

Mathematics

1 answer:

suter [353]3 years ago

8 0

Answer:

One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. Cells are suspended in a fluid environment.

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The average test scores for a particular test in algebra was 84 with a standard deviation of 5. What percentage of the students

bija089 [108]

Answer:

The percentage of the students scored higher than 89% is 15.87%

Step-by-step explanation:

we are given

The average test scores for a particular test in algebra was 84

so, mean is 84

$\mu=84$

a standard deviation of 5

so,

$\sigma=5$

we have

x=89

now, we can use z-score formula

$z=\frac{x-\mu}{\sigma}$

now, we can plug values

$z=\frac{89-84}{5}$

$z=1$

now, we can use calculator

and we get

$p(z>1)=0.1587$

So,

The percentage of the students scored higher than 89% is 15.87%

5 0

4 years ago

A wallet is marked with a sale sticker saying it is 76% off. The original price is $57.41. What is the sale price?

liubo4ka [24]

Answer: The sales price is $13.78

The original price is $57.41. It is selling at 76% off.
First, we need to find the discount. To find the discount, we need to find out what is 76% of $57.41

-------------------------------------------------
Find discount
-------------------------------------------------
76% x $57.41 ← change the percentage to decimal

= 0.76 x 57.41

= $43. 63 (nearest hundredth)

Now that we know the discount, we can find the sales price by subtracting the discount from the original price.

-------------------------------------------------
Find sales price
-------------------------------------------------
$57.41 - $43.63 = $13.78

-------------------------------------------------
The sales price is $13.78.
-------------------------------------------------

6 0

4 years ago

Helpppppppppppppppppp

Helen [10]

Answer:b

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The length of a rectangle is 2 Inches less than three times its width, and its perimeter is 36 Inches. Find the width of the

elixir [45]

Answer: Width = 5 inches

Concept:

Here, we need to know the idea of the perimeter.

A perimeter is a path that encompasses/surrounds/outlines a shape.

Perimeter of rectangle = 2 (w + l)

w = width

l = length

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

w = w

l = 3w - 2

P = 36 inches

Given formula

P = 2 (w + l)

Substitute the value into the formula

36 = 2 (w + 3w - 2)

Simplify values in the parentheses

36 = 2 (4w -2)

Divide 2 on both sides

36 / 2 = 2 (4w - 2) / 2

18 = 4w - 2

Add 2 on both sides

18 + 2 = 4w - 2 + 2

20 = 4w

Divide 4 on both sides

20 / 4 = 4w / 4

w = 5

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

Melissa made 164 fluid ounces of

abruzzese [7]

Answer:

Step-by-step explanation:

6 0

3 years ago