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AysviL [449]
4 years ago
10

36 POINTSSSS,HELLPPPPPPPPP In which part of the atmosphere does the temperature decrease as the altitude increases?

Mathematics
1 answer:
lakkis [162]4 years ago
3 0

Answer:

D

Step-by-step explanation:

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Which is equivalent to 2 (t - 4) + 1?
SashulF [63]

Answer:

2t -7

Step-by-step explanation:

it should be right .......

...

.....

6 0
3 years ago
Read 2 more answers
Helppp whats number 1 A B and C?!
9966 [12]
A=-4/3
B=1/5
C=-5/4
Hope that helps.
8 0
3 years ago
Read 2 more answers
when each edge of a cube is decreased by 1 cm, its volume is decreased by 91 cm^3 .Find the length of the a side of the original
Leokris [45]

Step-by-step explanation:

the original side length is x.

the volume of a block is length × width × height.

so, for a cube with all sides being equal, the volume in our case is x³ (x × x × x).

now, with the same formula but with every side shortened by 1 cm we get

(x-1)(x-1)(x-1) = x³ - 91 (the original volume minus 91)

now, we have to do the multiplications.

(x-1)(x-1) = x² - 2x + 1

(x²-2x+1)(x-1) = x³ - x² - 2x² + 2x + x - 1 = x³ -3x² + 3x -1

x³ - 3x² + 3x - 1 = x³ - 91

-3x² + 3x = -90

-x² + x = -30

x² - x = 30

x² - x - 30 = 0

the general solution to such a squared equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = -1

c = -30

x = (1 ± sqrt((-1)² - 4×1×-30))/(2×1) =

= (1 ± sqrt(1 + 120))/2 = (1 ± sqrt(121))/2 =

= (1 ± 11)/2

x1 = (1 + 11)/2 = 12/2 = 6

x2 = (1 - 11)/2 = -10/2 = -5

a negative number does not make any sense for a side length, so our solution is x = 6 cm.

the original side length of the cube is 6 cm.

to check :

6³ = 216

(6-1)³ = 5³ = 125

216 - 125 = 91

perfect.

8 0
2 years ago
will mark brainiest I need the answer as soon as possible can you order from least to greatest and show your work
Svetlanka [38]

You have two choices: the easiest is to turn every fraction to its numerical equivalent:

-\dfrac{9}{10}=-0.9,\ \ -\dfrac{3}{7}\approx -0.42857,\ \ -\dfrac{3}{4}=-0.75,\ \ -\dfrac{6}{5} = -1.2, -\dfrac{4}{3}\approx -1.33

Now, remember that negative numbers are ordered in the opposite way with respect to positive numbers (for example, 4 is larger than 2, but -4 is smaller than -2). So, the order is

-\dfrac{4}{3} < -\dfrac{6}{5} < -\dfrac{9}{10} < -\dfrac{3}{4} < -\dfrac{3}{7}

Alternatively, you can convert all the fractions so that they have the same denominator. In this case, you will need the least common multiple of 10, 7, 4, 5 and 3, which is 420. Once you do so, you can easily order the fractions using numerators only.


5 0
3 years ago
What is the surface area of an orange with a circumference of 10 in? Round your answer to the nearest square inch.
Fed [463]

Answer:

A= 4pi r

C = 2pi r

Step-by-step explanation:

3 0
3 years ago
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