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3 years ago

Round to the nearest ten and hundred 762

Mathematics

2 answers:

Phoenix [80]3 years ago

8 0

Nearest tens is 60 and nearest hundred is 800

user100 [1]3 years ago

8 0

Answer:

The round value to the nearest ten and hundred of number 762 is 760 and 800 respectively.

Step-by-step explanation:

While rounding off the number we have to follow certain rules:

If the rightmost digit to be removed is more than 5, the preceding number is increased by one. For example: 1.8 ≈ 5
If the rightmost digit to be removed is less than 5, the preceding number is not changed. For example: 23.1 ≈ 23
If the rightmost digit to be removed is 5, then the preceding number is not changed if it is an even number but it is increased by one if it is an odd number. For example: 0.45 ≈ 0.4, 0.75≈ 0.8

762 ≈ 760 round off to the nearest ten

762 ≈ 800 round off to the nearest hundred

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Answer:

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4 years ago

5.Find the slope of a line perpendicular to

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Hi there!

When the slopes of two perpendicular lines are multiplied the outcome will be -1.

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Let's call the slope of the perpendicular line m and take into account the given data of the question and my earlier explanation. We then find the following:

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3 years ago

How many atoms sodium would a 4 mole sample of Na3P have?

ioda

<h3>Answer:</h3>

2 × 10²⁴ atoms Na₃P

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<h3>Step-by-step explanation:</h3>

<u>Step 1: Define</u>

4 mol Na₃P

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

<u /> $\displaystyle 4 \ mol \ Na_3P(\frac{6.022 \cdot 10^{23} \ atoms \ Na_3P}{1 \ mol \ Na_3P} )$ = 2.4088 × 10²⁴ atoms Na₃P

<u>Step 4: Check</u>

<em>We are given 1 sig fig. Follow sig fig rules and round.</em>

2.4088 × 10²⁴ atoms Na₃P ≈ 2 × 10²⁴ atoms Na₃P

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3 years ago