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2 years ago

What is scientific notation and why is it important

2 answers:

7 0

Scientific notation is shorthand for writing really big or really small numbers. Without it we could not do certain calculations because there would be just too many digits and it would be tedious.

For example:
writing out the numbers in standard form..
1,440,000,000 ÷ 0.0000012 = ???
= 1,200,000,000,000,000

Scientific notation...
144×10^7 ÷ 12×10^-7 = 12×10^14

Komok [63]2 years ago

5 0

Scientific notation, is a way of writing numbers that accommodates values that's too large or too small to be conveniently written or comprehended in standard decimal notation. ... Scientific notation is important to modern society because it provides to people working with these numbers.

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Write the equation of the line that's passes through (2,-3) and a slope of -5 I standard form

sashaice [31]

Y= - 5x + 7

Use the point and slope to solve for b, which is 7.

7 0

3 years ago

The ratio of boys to girls on rowans swim team is 2:3.if there are 40 total swimmers on the team,how many of them are girls?

Bogdan [553]

Answer:

The ratio of girls is 24.

Step-by-step explanation:

If the total amount of swimmers is 40, you can divide it by 8 to get 5 multiples. If three of those 5's belong to the ratio of girls, the equation is 3 x 8. The answer is 24.

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2 years ago

Use the scale of 1 cm:15 cm to find each missing dimension.

Hunter-Best [27]

Answer:

1 the answer is 60

2. the answer is 135

3. the answer is 337.5

4 0

3 years ago

Read 2 more answers

Ivan has cut 19 pieces of reinforcing bar (rebar) that are each 1.14 meters long. What is the total length of the rebar used fo

madreJ [45]

Answer:

The total length of rebar used is 21.66 meters.

Step-by-step explanation:

Given:

Ivan had cut a reinforcing bar in 19 pieces and length of each bar is 1.14 meters.

Number of pieces = 19

Length of each piece = 1.14

We need to find the total length of reinforcing bar.

To calculate the total length we will multiply number of pieces with length of each piece.

Hence,

Total length of rebar = Number of pieces × Length of each piece = $19\times1.14 = 21..66 m$

Rounding to nearest hundred = 21.66 m

Hence the total length of reinforcing bar is 21.66 meters.

4 0

3 years ago

A self storage center is a storage room that is 8 feet long, 6 feet wide, and 10 feet high. What is the volume of the room?

KonstantinChe [14]

The formula for volume is width * height * length or w*h*l. to do this problem you have to do 8*6*10 which is 480. so, the volume of the room is 480 ft^3 (cubed).

7 0

2 years ago