3 years ago

What's the scientific notation for 420

Mathematics

2 answers:

LenKa [72]3 years ago

8 0

4.2•10^2 is the answer to your question

fenix001 [56]3 years ago

4 0

The person on top got the correct answer so put his down i was gonna write that

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Can someone please help me and explain it?

Georgia [21]

Step-by-step explanation:

3x<-5+10

3x<+5

x<5/3

hope it helps!

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3 years ago

What is 1,054.0402 in expanded notation?

viktelen [127]

1,000 + 50 + 40 + 0.04 + 0.0002 is the number above in expanded notation.

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3 years ago

Elena has a washing machine with a 20 gallon capacity. She always uses a 20 gram measure of soap for every 10 gallons of water.

baherus [9]

Answer:

For $20$ minutes Elena add water to correct the error.

Step-by-step explanation:

The capacity of the washing machine is $20$ gallons.

She uses $20$ gram soap for $10$ gallon of water

Her son by mistake dissolved $60$ grams of soap to $10$ gallons of water.

$\[60\]-$ gram soap is right for $30$ gallons of water, thus $20$ gallon of water must be added more.

She pore water $2$ gallons per minute thus, $20$ gallons of water will take $10$ minutes.

Learn more about equations : brainly.com/question/20727602?referrer=searchResults

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3 years ago

Chloe has a box that is 15 cm long, 4 cm wide, and 9 cm tall. How many 1 cm by 1 cm by 1 cm dice can Chloe fit into the box?

ElenaW [278]

540 dice should fit into the box

5 0

3 years ago

Find the distance between points M (6,16) and Z (-1,14) to the nearest tenth, please help step by step

insens350 [35]

The distance between 2 points P(a, b) and Q(c,d) is given by the formula:

$\displaystyle{d= \sqrt{(b-d)^2+(a-c)^2}$ ,

Apply the formula for the points M(6, 16) and Z(-1, 14):

$\displaystyle{d= \sqrt{(16-14)^2+(6-(-1))^2}= \sqrt{2^2+7^2}= \sqrt{4+49}= \sqrt{53}\approx 7.28$

which rounded to the nearest tenth is 7.3 (units)

Answer: 7.3 units

3 0

3 years ago