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Svetradugi [14.3K]
3 years ago
15

What is 0.4 × 16.21 = ?

Mathematics
1 answer:
babunello [35]3 years ago
8 0
Answer: 6.484

Explanation: used a calculator
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Dmitry_Shevchenko [17]
V≈1.32×105cm³=31.6cm
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3 years ago
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What the value of r that makes the value true? r+(-0.14)=0.47
siniylev [52]

r+(-0.14)=0.47\\\\r-0.14=0.47\qquad|\text{add 0.14 to both sides}\\\\r-0.14+0.14=0.47+0.14\\\\r=0.61

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The area of a rectangular dining room is 16 square meters. The perimeter is 16 meters. What are the dimensions of the dining roo
neonofarm [45]

Answer:

4

Step-by-step explanation:

The area is 16, and you know that it's 2 sides u need to multiply

The perimeter is 16, and you know that you need to add up all the sides

So....

A = b * h

A = 4 * 4

A = 16    CORRECT

And....

P = S + S + S + S                                                         ( s = sides)

P = 4 + 4 + 4 + 4

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Hope this helped!

Have a supercalifragilisticexpialidocious day!

6 0
3 years ago
Which of these options best describes backtracking, in a maths sense?
Aleks04 [339]

Answer:

1. Re-writing an equation to remove all the variables.

Step-by-step explanation:

Backtracking is the procedure required for solving problems that has series of parts combined as one. It involves the retracing each part after one or two parts has been solved to solve the whole problem.

In mathematics when given an equation with variables, the solution can be obtained by calculating the values of each variable. To determine the final solution sometimes requires substitution procedure.

The best option that describe backtracking in maths-sense is; re-writing an equation to remove all the variables.

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47 is the prime number
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4 years ago
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