All categories

2 years ago

2 [{2-2(2÷2-2)} ÷2]÷2

Mathematics

1 answer:

mash [69]2 years ago

6 0

Step-by-step explanation:

2 [ { 2 - 2 ( 2 ÷ 2 - 2 ) } ÷ 2 ] ÷ 2

2 [ { 2 - 2 ( 1 - 2 ) } ÷ 2 ] ÷ 2

2 [ { 2 - 2 ( - 1 ) } ÷ 2 ] ÷ 2

2 [ { 2 + 2 } ÷ 2 ] ÷ 2

2 [ 4 ÷ 2 ] ÷ 2

2 ( 2 ) ÷ 2

4 ÷ 2

$...$

You might be interested in

Select Correct Answer From Drop Down Menu

BARSIC [14]

Answer:

Solution (-3, -5)

systems or linear equations

y = x - 2

y = 3x + 4

Step-by-step explanation:

-2,-2 ( 0,4

8 0

3 years ago

A thermometer is taken from an inside room to the outside, where the air temperature is 20° f. after 1 minute the thermometer re

fomenos

The change in the temperature is proportional to the difference in temperatures. Let's call the initial temperature of the room and the thermometer $E_0$ and the current temperature $E(t)$ where $t$ is the elapsed time in minutes. The outside temperature is 20 F.

Newton's Law of Cooling:

$E(t) - 20 = (E_0 - 20) e^{- k t}$

We're given $E(1)=70 \textrm{ and } E(5)=45$

$70-20 = (E_0 - 20) e^{-k}$

$45-20 =(E_0 - 20) e^{-5k}$

Dividing,

$\dfrac{50}{25}=e^{4k}$

$k = \dfrac 1 4 \ln 2$

Now,

$E(t) - 20 = (E_0 - 20) e^{- k t}$

$E_0 = 20 + (E(t) - 20)e^{k t}$

$E_0 = 20 + (E(1) - 20)e^{k}$

$E_0 = 20 + (70 - 20)e^{\ln 2/4}$

$E_0 = 20 + 50 \cdot 2^{1/4} \approx 79.46 \textrm{ degrees F}$

3 0

4 years ago

34 + (-21) +15 = 0<br> 5<br> -2<br> NE<br> 2.

Blababa [14]

Answer:

$34 + ( - 21) + 15 = 28$

4 0

3 years ago

Is the relationship shown by the data linear? x -9, -5, -1, 3 y -2,-7,-12, -17

Temka [501]

x y
------ -----
-9 -2
-5 -7
-1 -12
3 -17

ur x's all have a difference of 4, and ur y's all have a difference of -5...so yes, this is linear with a slope of (-7+2) / (-5 + 9) = -5/4

5 0

4 years ago

HELP ME!!! I wanna pass please

ale4655 [162]

The answer would be c (w = 12 feet)!

5 0

3 years ago

Read 2 more answers

2 [{2-2(2÷2-2)} ÷2]÷2​

2 [{2-2(2÷2-2)} ÷2]÷2