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Talja [164]
4 years ago
6

−2π Is this rational or irrational

Mathematics
2 answers:
Daniel [21]4 years ago
5 0

It is irrational.

π is an irrational number.

It follows that -2π is also irrational number.

Marta_Voda [28]4 years ago
4 0
-2 x 3.14 is Irrational
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What is the equation of the line that passes through the point (8, 8) and has a<br> slope of -22
Likurg_2 [28]

Answer:

Step-by-step explanation:

y - 8 = -22(x - 8)

y - 8 = -22x + 176

y = -22x + 184

7 0
3 years ago
you buy a commemorative coin for $110. Each year t, the value V , of the coin increases by 4 %.Write a model that describes the
emmainna [20.7K]
The answer is $220. 110+4%x
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4 years ago
PLEASE HELP! I know the top part I just need the bottom!
Zolol [24]

slope  = (y2-y1)/(x2-x1)

        = (70-52)/(8-1)

    = 18/7

=2.6

point slope form

y-y1 = m(x-x1)

y-52 = 2.6(x-1)

distribute

y-52 = 2.6x-2.6

add 52 to each side

y = 2.6x+49.4

y = 2.6x +49


the initial temperature is 49.4 or about 49

and it increases about 2.6 degrees each week


7 0
4 years ago
Hiking up a mountain, you notice that the air temperature drops 10 degrees every 1000 meters increase in elevation. Write a mult
Elina [12.6K]

 decrease in temperature if you hike up the mountain 3000 meters is  -30° .

<u>Step-by-step explanation:</u>

Here we have , Hiking up a mountain, you notice that the air temperature drops 10 degrees every 1000 meters increase in elevation . We need to find Write a multiplication expression to represent the decrease in temperature if you hike up the mountain 3000 meters. Let's find out:

For every 1000 meters rise in elevation , there is decrease in 10° of temperature . So , For rise in n meters in  elevation , there is decrease in n×10° of temperature i.e

Decrease in temperature = (n/1000)×(-10) i.e.

⇒  (n/1000)×(-10)

⇒ \frac{n}{1000}(-10)

At n = 3000 meters:

⇒ \frac{3000}{1000}(-10)

⇒ 3}(-10)

⇒ -30°  

Therefore ,  decrease in temperature if you hike up the mountain 3000 meters is  -30° .

8 0
3 years ago
A cube has a volume of 0.215ft³. What is te length of each side of the cube?
enyata [817]

Answer:

length ≈ 0.599 feet

Step-by-step explanation:

volume = length³

0.215ft³ = length³

cube root both sides to isolate the length

∛(0.215ft³) = length

length ≈ 0.599 feet

6 0
3 years ago
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