2 years ago

What's 1628 rounded to 3 significant figures

Mathematics

1 answer:

Alenkasestr [34]2 years ago

6 0

The 8 rounds up so the answer is 1630

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Aleksandr-060686 [28]

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2 years ago

Express in the form of p/q : (i) 0.12▁3 (ii) 0. ▁621 (iii) 2.2▁18

konstantin123 [22]

Answer:

1)0.123( bar on 3)

Let X = 0.123 ( bar on 3)

Then X = 0.1233 --------(1)

Multiply equation (1) by 100 we get,

100X = 12.33 --------(2)

Again multiply equation (2) by 10 we get,

1000X = 123.33 -------(3)

Subtract equation (2) from equation (3) we get,

1000X = 123.33

100X = 12.33

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900X = 111

X = 111/900

Hence,

0.123 ( bar on 3) is in the form of 111/900 which is in the form of P/Q.

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3 years ago

What (3×5^2)/(5)^2 equal? Plz answer fast and with work and I will give brainliest

balu736 [363]

Answer:

The answer is 3.

Step-by-step explanation:

Given that the Indices Law is,

${a}^{m} \div {a}^{n} = {a}^{m - n}$

${a}^{0} = 1$

So the expression is :

$3 \times {5}^{2} \div {5}^{2}$

$= 3 \times {5}^{2 - 2}$

$= 3 \times {5}^{0}$

$= 3 \times 1$

$= 3$

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2 years ago

100 200 300 400 500 600 700 Quantity Supplied nstructions: Refer to the graph and answer the questions below

mash [69]

Answer:

a. 400

b. 4$

Step-by-step explanation:

2$ equals 0 Quantity

3$ equals 100 Quantity

4$ equals 200 Quantity

We can see that starting from 2$, a dollar will increase the Quantity by 100

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1 year ago

A scientist needs 60 liters of a 40% solution of alcohol.He has a 30% solution and a 60% solution available.How many liters of t

stich3 [128]

Answer:

He should mix 25 liters of the 30% solution, and 35 liters of 60% solution.

Step-by-step explanation:

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1 year ago