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ivanzaharov [21]
3 years ago
9

What number raise power 3 is 729

Mathematics
1 answer:
hram777 [196]3 years ago
5 0
3^x = 729
log(3^x) = log(729)
xlog(3) = log(729)
x = log(729)/log(3)
x = 6
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2x - 2y = 10 and x + 2y = 11
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Answer:

Step-by-step explanation:

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Estimate 428,731 - 175,842 = i have no idea
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428,731 - 175,842 = 252,889
4 0
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The kinetic energy (in joules) of a moving object can be calculated from the expression 1/2mv^2, where m is the mass of the obje
algol13

Answer: 116\text{ joules}


Step-by-step explanation:

Given: Mass of baseball=0.145 kg

Speed of baseball=40 meters per second

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3 years ago
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The sum of three numbers is 86. The third number is 4 times the first. The first number is 10 more than the second. What are the
Leona [35]

Answer:

The first number is 16

The second number is 6

The third number is 64

Step-by-step explanation:

The information from the word problem are;

The count of the numbers in the sum = 3 numbers

The value of the sum of the three numbers = 86

The value of the third number = 4 × The value of the first number

The value of the first number = 10 + The value of the second

Let 'x' represent the first number, let 'y' represent the second number and let 'z' represent the third number, we have;

x + y + z = 86...(1)

z = 4 × x...(2)

x = y + 10...(3)

From equation (3), we get;

x = y + 10

∴ y = x - 10...(4)

Substituting the value of <em>z</em> from equation (2) and the value of <em>y</em> from equation (4) in equation (1) gives;

x + y + z = 86

z = 4 × x = 4·x

y = x - 10

∴ x + y + z = x + (x - 10) + 4·x = 86

x + (x - 10) + 4·x = x + x - 10 + 4·x = 6·x - 10 = 86

6·x = 86 + 10 = 96

∴ x = 96/6 = 16

x = 16

From equation (2), we get;

z = 4 × x

∴ z = 4 × 16 = 64

z = 64

From equation (4), we get

y = x - 10

∴ y = 16 - 10 = 6

y = 6

Therefore; x = 16, y = 6, and z = 64

The numbers are 16, 6, and 64

8 0
2 years ago
With out subtracting 8.5-4.64 determine what digit will be in the hundreds place
icang [17]
A zero (0) would be in the hundreds place.

      8.50
-     4.64
---------
      3.86

 ^ ^ ^ ^ ^

 HTO.T H

 UEN.E U

 NNE .NN

 DSS .T D

<span> R      .H R</span>

<span> E      .S E</span>

<span> D    .     T</span>

<span> S    .     H</span>

<span>              S</span>


8 0
3 years ago
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