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vodka [1.7K]
4 years ago
14

See if you can put these inventions in the correct order, most recent to oldest!

Mathematics
2 answers:
SCORPION-xisa [38]4 years ago
7 0

Answer:

Electric TV, Airplane, Refrigerator, Computer, Steel

Step-by-step explanation:

stiv31 [10]4 years ago
7 0

Answer:

Electric TV, Airplane, Steel, Refrigerator, Mechanical Computer

Step-by-step explanation:

According to google:

Airplane (1903)

Steel (1850s)

Electric TV (1927)

Mechanical Computer (1822)

Refrigerator (1834)

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Is y= x2-1 a linear equation
Mekhanik [1.2K]
Yes, it is a linear equation.
4 0
3 years ago
Which expressions are equivalent to StartFraction 1 Over 36 EndFraction? Check all that apply. 3 Superscript negative 6 6 Supers
Elenna [48]

Answer:

6^-2

6^3/6^5

6^-9 *6^ 7

Step-by-step explanation:

We want the fractions equal to 1/36

We know that a^-b = 1/a^b

We also know that a^b / a^c = a^(b-c)

We also know that a^b * a^c = a^(b+c)

3^ -6 = 1/3^6 = 1/729

6^-2 = 1/6^2 = 1/36

6^3/6^5 = 6^(3-5) = 6^-2 = 1/6^2 = 1/36

6^2 / 6^-1 = 6^(2- -1) = 6^3 = 216

6*6^-2 = 6^(1-2) = 6^-1 = 1/6

6^-9 *6^ 7 = 6^(-9+7) = 6^ -2 = 1/6^2 = 1/36

5 0
3 years ago
Read 2 more answers
2. A spy uses a telescope to track a rocket launched vertically from a launch pad 6 km away. The rocket travels upwards at a vel
grandymaker [24]

Answer:

The rate of change in distance between the spy and the rocket is 10.8 km/min,

or about 180 m/sec.

Step-by-step explanation:

At "Time=0" the rocket is 6km from the spy.

The rocket travels vertically 8km in about 0.37 minutes, calculated by 8km÷21.6km/min.

At that point, the rocket is 10 km from the spy., calculated by 6²+8²=10²

The difference is 4 kiilometers over 0.37minutes, about 22.2 seconds

Divide Distance by Time to get Rate:

4km/0.37min = 10.8 km/min

That is about 180 meters per second.

7 0
3 years ago
I need help on this question plz
PIT_PIT [208]
In the third equation, the left side has ab.
You are solving for a, so you need a alone.
Dividing ab by b gives you a alone.

Answer: The third choice.
7 0
3 years ago
You bought a freezer that is 2 feet wide, 4 feet long and 30 inches deep
Dima020 [189]
2 (w) x 4 (l) x 30 (b) = 240 sq ft.

length x width x height 
7 0
4 years ago
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