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4 years ago

A cell with 2cm sides has what surface area?

1 answer:

8 0

A cell with 2cm sides has a surface area of 6 × a2 or a2 + a2 + a2 + a2 + a2 + a2

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Steps for variables and expressions?

ArbitrLikvidat [17]

IT DEPENDS.. I can answer if u can be more specific

8 0

3 years ago

The radius of a cylinder is increased by 5 percent. Given that the height is constant, find the percentage increase in volume.

telo118 [61]

Step-by-step explanation:

Volume =pir^h

V1=pi r1^h

V2=pir2^2h

Now,V1/V2=r1^2/r2^2

v1/v2=r1^2/(1.05)^2 ((r2=r1+5/100r1)

v1/v2=1/1.1025

v1/v2=0.907

(v1/v2-1)=0.0907×100%

(v1-v2)/v2=9.07%

increase in volume is 9.07%

7 0

3 years ago

One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write th

alexandr402 [8]

Table #1:

Using the first two points (2,1) and (5,3)

You get (x-2)/3 = (y-1)/2

But then the 3rd point (8,7) does not work, so this is not linear.

Table #2

Using the first two points (1,10) and (2,13)

You get x-1 = (y-10) /3

But then the 3rd point (3,18) does not work so this is also not linear.

Table #3

Using the first two points (2,1) and (4,6)

You get x-2 /2 = y-1 /5

And all the other points will work with this, which makes this table linear.

Rewrite the equation to get y = 5/2x-4

5 0

3 years ago

if one inch represents 14 feet how many inches would you use to make a scale drawing of a building that is 199 feet

gayaneshka [121]

Answer:

14.2 inches

Step-by-step explanation:

Given

1 inch = 14 feet

Required

Find the equivalent of 199 feet

Write out the given expression;

1 inch = 14 feet

Divide both sides by 14

$\frac{1\ inch}{14} = \frac{14\ feet}{14}$

$\frac{1\ inch}{14} = 1\ foot$

$1 foot = \frac{1}{14}inch$

Let x represent the equivalent of 199 feet in inches;

Such that:

$x = 199\ feet$

$x = 199 * 1 foot$

Substitute $1 foot = \frac{1}{14}inch$

$x = 199 * 1 foot$ becomes

$x = 199 * \frac{1}{14} inch$

$x = \frac{199}{14} inch$

$x = 14.2142857143 inch$

x = 14.2 inches (Approximated)

6 0

4 years ago

Write the equation of a line that passes through ( 4, 6), and has a slope of 1/3

nlexa [21]

Answer:

y = 1/3x + 14/3

Step-by-step explanation:

y = mx + b

we know the slope, so the equation would be --> y = 1/3x + b

Now we plug in the coordinates of the given point (4, 6) the line goes through, and solve for b:

y = 1/3x + b

6 = 1/3(4) + b

6 = 4/3 + b

-4/3 -4/3

----------------

14/3 = b

3 0

3 years ago