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3 years ago

Evaluate 12x-(4y+7z) for x=9 y= 4 and z = 2

Mathematics

1 answer:

Brums [2.3K]3 years ago

6 0

The answer to "12x-(4y+7z) for x=9 y= 4 and z = 2" is 78.

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Answer:

1/4 * 1/5 = 1/20

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3 years ago

Giving Brainliest No Links

AleksAgata [21]

Answer:

3 1/4

Step-by-step explanation:

3 5/8 is too long

3 is too short so is 3 1/8

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2 years ago

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Combine any like terms in the expression. If there are no like terms, rewrite the expression.

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Answer:

2x+x

Step-by-step explanation:

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3 years ago

The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had th

Maru [420]

Student 4 has the largest percent error.

Step-by-step explanation:

The percent error of a measurement is given by

$p=\frac{|x-x_{true}|}{x_{true}}\cdot 100$

where

x is the value of the measurement

$x_{true}$ is the actual value

For student 1:

$x=49\\x_{true}=50$

Percent error:

$p=\frac{|49-50|}{50}\cdot 100=0.02\cdot 100=2\%$

For student 2:

$x=25.5\\x_{true}=25$

Percent error:

$p=\frac{|25.5-25|}{25.5}\cdot 100=0.0196\cdot 100 = 1.96\%$

For student 3:

$x=7.5\\x_{true}=8$

Percent error:

$p=\frac{|7.5-8|}{8}\cdot 100=0.0625\cdot 100 = 6.25\%$

For student 4:

$x=2.1\\x_{true}=1.6$

Percent error:

$p=\frac{|2.1-1.6|}{1.6}\cdot 100=0.3125\cdot 100 = 31.25\%$

So, student 4 has the largest percent error.

Learn more about errors:

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3 years ago

Multiply. Write your answer as a fraction in the simplest form.<br> (−1 2/3)^3

nikdorinn [45]

Answer:

Fraction Calculator

Add Fractions, Subtract Fractions, Multiply Fractions, or Divide Fractions and get an answer in the simplest form with this Online Fraction Calculator.

FRACTION CALCULATOR

First Fraction

(+, -, x, ÷)

Second Fraction

Add Fractions

Subtract Fractions

Multiply Fractions

Divide Fractions

Step-by-step explanation:

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2 years ago

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