A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate of −8°C per hour. What was the temperature 1 hour ago?

Answers

Answer 1

Answer:

Step-by-step explanation:

Absolute zero, the lowest temperature possible, is defined as being exactly 0 K and −273.15 °C. Until 19 May 2019, the temperature of the triple point of water was defined as exactly 273.16 k


Related Questions

Help / sorry it’s blurry

Answers

Answer:

jjsbajshsbssjsjwhhwwhjwejwjjw

A store purchases a bicycle from the manufacturer for $150. The store then sells the bicycle for $215. By what percentage did the store mark up the bicycle?

Answers

Answer:

it marked the bike up by 69 percent

Step-by-step explanation:

Someone help worth 5 points

Answers

Answer:

43

Step-by-step explanation:

Answer:

b 43 on edge 2021.........

A number x is less than 1/4

Answers

Answer:

Step-by-step explanation:

1/2

160 is what percent of 40?

Answers

Answer:. 400%

Step-by-step explanation:

Divide 160 by 40.

The result is 4.

To Change to a percentage, multiply by 100.

4 × 100 = 400%

The integer number 40 will be 25 percent of the integer number 160.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The percentage of 40 out of 160 will be given as,

P = (40 / 160) x 100

P = 0.25 x 100

P = 25%

The integer number 40 will be 25% of the integer number 160.

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PLEASE EXPLAIN TOO SO I CAN SOLVE OTHER SIMILAR ONES.
What is the measure of angle x? Explain how you know.

Answers

Answer: x = 30' , y = 45'

hope this helps

Step-by-step explanation:

U is 90' it's a right triangle

well simple VRT you already know 2 angles which is 60' and 90'

R = 60'

V = 90'

T = x

you know that a triangle = 180'

so you do

180 - 60 - 90 = x

30 = x

if you want to do y

then you already know that U is 90' on both sides.

since you also know S,

S = 45'

U = 90'

V = y

180 - 90 - 45 = y

45 = y

What is the the translation rule

Answers

The answe is X+12, Y+10

Choose the two rectangular prisms that have a volume of 36 cm

Answers

The height=2cm, Length=6m,Width=3cm

what is this expression simplified 5(2 + 2k)

Answers

Answer:

10 + 10k

Step-by-step explanation:


This expression simplified is k=0

The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters.
What is the volume of the pyramid in cubic centimeters?

Answers

Answer:

volume = 13500 [tex]cm^{3}[/tex]

Step-by-step explanation:

For a given pyramid, its volume can be determined by:

volume of pyramid = [tex]\frac{lwh}{3}[/tex]

Where: l is the base length, w is the base width and h id the height of the pyramid.

For the given question, l 30 cm, w = 30 cm and h = 45 cm.

So that,

volume = [tex]\frac{30*30*45}{3}[/tex]

            = [tex]\frac{40500}{3}[/tex]

            = 13500

volume = 13500 [tex]cm^{3}[/tex]

The volume of the pyramid is 13500 [tex]cm^{3}[/tex].

The volume of the square-based pyramid is [tex]13500cm^3[/tex]

The volume of a pyramid is given by

[tex]V=\dfrac{Ah}{3}[/tex]

where

[tex]A=\text{area of the square base}\\h=\text{perpendicular height}[/tex]

The area of the square base, [tex]A[/tex], is calculated as follows

[tex]A=side^2\\=(30cm)^2\\=900cm^2[/tex]

substitute the value of [tex]A[/tex], and [tex]h[/tex] ([tex]45cm[/tex]) into the volume formula to calculate the pyramid's volume

[tex]V=\dfrac{Ah}{3}\\\\=\dfrac{900\times 45}{3}\\\\=13500cm^3[/tex]

Therefore, the volume of the pyramid is [tex]13500cm^3[/tex]

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Need help ASAP
Thanks+ BRAINLIST only for correct answers (the answer negative is wrong)

Answers

None those two don’t correlate so I’m pretty sure it’s none
because these are unrelated things, it must be none.

Solve it pls 4 - 7k = 1 - 6k

Answers

k = 3
4 - 7k + 6k = 1 - 6k +6k
4 - k = 1
4 - k + k = 1 + k
4 = 1 + k
4 - 1 = 1 + k - 1
3 = k
k = 3

*starts crying from happiness*❤️❤️❤️❤️❤️❤️❤️❤️❤️

Answers

Step-by-step explanation:

find value of x!!! this is geometry

Answers

it is x=69 because the 1 turns into a snitch and caused the 9 to a turn into a 68 and if you add 1 to 68 it’ll be 1+68=68

Solve for c.
-5/8c = 20

A. c = -34

B. c = -32

C. c = 26

D. c = 28

Answers

Answer:

b

Step-by-step explanation:

solve for c by simplifying both sides of the equation then isolate the variable

4 1/5 x 5/14 in its simplest form

Answers

Answer:

1.5 as fraction it is  3/2 in simplest form

Step-by-step explanation:

The simplest form of the expression given is 3/2

What is an expression?

A mathematical statement containing variables, numbers and connected by a mathematical operator is called an expression.

Given that, an expression  [tex]4\frac{1}{5}[/tex]  × [tex]\frac{5}{14}[/tex]

We are asked to simplify them,

[tex]4\frac{1}{5}[/tex]  × [tex]\frac{5}{14}[/tex]

= 21 / 5 × 5 / 14

= 21 / 14

= 3/2

Hence, the simplest form of the expression given is 3/2

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Please help, and thank you in advance.

Answers

1) 20%
2) 40%
3) 75%
4) 12%

please help and please explain, thank you:)​

Answers

Answer:

I think it is K = 2

Step-by-step explanation:

Hope this helps.

K=2 that’s the answer by the way!Have a great day

the measure of AOC is 90 find the value of x, A 30 B 10 C 11

Answers

10

Step-by-step explanation:

3x° + 46° +14°

3*10° + 46 + 14° =90

therefore the value of x is 10

The value of x on the given figure is 10.

Option D is the correct answer.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

From the figure,

3x + 46 + 14 = 90

Now,

Simplifying.

3x + 60 = 90

Subtracting 60 on both sides.

3x = 90 - 60

3x = 30

Dividing 3 into both sides.

x = 10

Thus,

The value of x on the given figure is 10.

Learn more about expressions here:

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The complete question is given on the attach image.

Solve the linear equation.
x/7 = -8

Answers

Answer:

x = - 56

Step-by-step explanation:

Given

[tex]\frac{x}{7}[/tex] = - 8 ( multiply both sides by 7 to clear the fraction )

x = - 56

Answer:

x = -56

Step-by-step explanation:

i just simplified both sides of the equation you could say.

Write and equation for the line graphed below? Use slope-intercept form. ASAP PLSS!

Answers

Answer:

3,5,-5

Step-by-step explanation:

because it on y asix

A rectangular lunch tray is 33 cm long and 26 cm wide.

What is the area of the tray in square centimeters?

Answers

Answer:

The area of the 858 square centimeters.

Step-by-step explanation:

You multiply 33 by 26 and that gives you the area. You can use the equation lw=a

im not sure of my answer i need help please!!

Answers

Answer:

C. y = -2/3x + 4

Step-by-step explanation:

y = mx + b

y-intercept of positive 4 on the y axis

m is the slope which is down 4 right 6 which reduces to -2/3

Complete the following
a)
3/5 = ./20
b)
./6=25/30

Answers

Answer:

a)12/20

because 5 × 4 = 20 so, 3 also needs to multiply by 4

b)5/6

because 30 ÷ 6 = 5, and 6 × 5 = 30,so, 25 needs to ÷ with 5

A) 12/20
B) 5/6
Need to multiply the numerator by the same multiplication as the denominator

2 1/2 divided by 5/6

Answers

Answer:

3

Step-by-step explanation:

2 1/2 / 5/6

= 5/2 / 5/6

= 5/2 * 6/5

= 6/2

= 3

Hope this helps!

4y=x+8 pls answer hurry up pls

Answers

Answer:

x=-8

y=2

Step-by-step explanation:

Complete the following table for the equation y = 2x + 5

Table: 0. 1. 2. 5. 7.

Pls help im in the middle of a test

Answers

Answer:

0 is 5

1 is 7

2 is 9

5 is 15

7 is 19

which of the following numbers is irrational

Answers

Answer:

E

Step-by-step explanation:

Irrational means cannot be put into a fraction. Or random repeating decimals is how I remember it.

√48 can be simplified to equal 4√3. √3 cannot be put into fraction form.

Lupita bought 7 pounds of pretzels at a local wholesaler for $16.80. Her friend Charles bought 5 pounds of pretzels at the supermarket for $12.75. Charles thinks he got the better deal because $12.75 is less than $16.80. Is Charles’s reasoning correct? Explain why or why not.

Answers

Answer:

Charles's reasoning is wrong.

Step-by-step explanation:

Lupita has 7 pounds for 16.8 and Charles has 5 pounds for 16.8.

Let's set up ratios.

So Lupita got the best deal, not Charles. Poor him.

Explain how to solve the equation
b - 7 = 12

Answers

Answer:

add 7 on both sides. b-7+7=12+7 to eliminate 7. you get b=19. hope this helps.

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