All categories

3 years ago

Help test due tonight ! no links please

Mathematics

1 answer:

AnnZ [28]3 years ago

6 0

That is correct that the lord has been

You might be interested in

What is the answer too 6+3=x-8?

LuckyWell [14K]

Answer:

x = 17

Step-by-step explanation:

8 0

3 years ago

PLEASE HELP!!!!

wel

Answer:

Mike is not right

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the enlarged rectangular prism

y-----> surface area of the original rectangular prism

$z^{2}=\frac{x}{y}$

In this problem we have

$z=2$

substitute

$2^{2}=\frac{x}{y}$

$4=\frac{x}{y}$

$x=4y$

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

therefore

Mike is not right

<em>Verify with an example</em>

we have a rectangular prism

$L=5\ m$

$W=2\ m$

$H=3\ m$

The surface area of the prism is equal to

$SA=2(LW)+(2L+2W)H$

substitute the values

$SA=2*(5*2)+(2*5+2*2)*3=62\ m^{2}$

If he doubles each dimension of any rectangular prism

then

the new dimensions will be

$L=5*2=10\ m$

$W=2*2=4\ m$

$H=3*2=6\ m$

The new surface area will be

$SA=2*(10*4)+(2*10+2*4)*6=248\ m^{2}$

$248/62=4$

therefore

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

8 0

3 years ago

Abdul purchased a prepaid phone card for 45.00 . Calls cost 6 cents a minute using this card. The credit, (in dollars), left on

kipiarov [429]

C= 45.00 - 0.06x

C= 45.00 - 0.06(50)

C= 45.00 - 3 = $42 left

6 0

4 years ago

Which is equivalent to 64 1/4?

Alchen [17]

Answer: 2 $4\sqrt{x} 4$

Step-by-step explanation:

7 0

3 years ago

a tractor requires 4 gallons of diesel fuel to plow for 90 minutes. how many gallons of fuel would be required to plow for 8 hou

andrew-mc [135]

You divide 90/60 which is an hour and you get 1.5 and you multiply that by 8..... which is 12 gallons.

6 0

4 years ago

Help test due tonight ! *no links please *

Help test due tonight ! no links please