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Zepler [3.9K]
3 years ago
13

What is the value of the expression below when z=3?

Mathematics
1 answer:
sashaice [31]3 years ago
5 0

Answer:

82

Step-by-step explanation:

10z^2 - 2z - 2 =

10(3)^2 - 2(3) - 2 =

10(9) - 2(3) - 2 =

90 - 6 - 2 = 82

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What is the fraction, decimal,Ratio for 71.4%
Harrizon [31]

Answer:

Fraction: \frac{357}{500}

Decimal: 0.714

Ratio is 357:500

Step-by-step explanation:

<u />

<u>The fraction of 71.4%</u>

\frac{71.4}{100}

Multiplying the numerator and denominator by 10 gives;

\frac{714}{1000}

Dividing the numerator and denominator by 2 gives

\frac{357}{500} (no other common divisor)

<u>The decimal value of 71.4%</u>

<u />

We divide 71.4 by 100 to get 0.714

<u>The ratio of 71.4%</u>

<u />

The simplified fraction of 71.4% is \frac{357}{500}

So the simplified ratio is 357:500

3 0
3 years ago
Pls help 15 points if you get right
kotykmax [81]

Answer:

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Step-by-step explanation:

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4 years ago
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Westkost [7]

Answer:

250=a and b=10

Step-by-step explanation:

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lyudmila [28]

The first one (3/2)*4

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