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3 years ago

What percent of 80 is 20

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

8 0

Answer:

25%

Step-by-step explanation:

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Prove sin^2A + cos^2A = 1

Nady [450]

Step-by-step explanation:

${sin}^{2} A + {cos}^{2} A = 1 \\ lhs = {sin}^{2} A + {cos}^{2} A \\ = {sin}^{2} A + 1 - {sin}^{2} A \\ = 1 \\ = rhs \\ \therefore \: {sin}^{2} A + {cos}^{2} A = 1 \\$

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3 years ago

Heres a set of data 2.4, 1.6, 3.2, 0.3, 1.5 each peice of data is increases by 10, what is the mean? each new peice of data is d

Leviafan [203]

Step-by-step explanation:

Mean is the ratio of the sum of the sample data to the total sample size.

1) Given the set of data 2.4, 1.6, 3.2, 0.3, 1.5, if each piece of data is increases by 10, the new data's will be;

(10+2.4), (10+1.6), (10+3.2), (10+0.3), (10+1.5)

sum of the new data's = 59

Sample size = 5

Mean = 59/5

Mean = 11.8

Hence if the price of data is increases by 10, its new mean will be 11.8

2) If each new piece of data is doubles, the new set of data will be;

2(2.4), 2(1.6), 2(3.2), 2(0.3), 2(1.5)

= 4.8, 3.2, 6.4, 0.6, 3.0

Sum of new data = 4.8+3.2+6.4+0.6+3.0

Sum of new data = 18

sample size = 5

Mean = 18/5

Mean = 3.6

Hence the new mean if the data were doubles is 3.6

4 0

2 years ago

Converting Measurements to Solve Problems

Shkiper50 [21]

Answer:

She should have multiplied by 10,000.

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3 years ago

Write 32 +24 as a product of two factors using the gcf and the distributive property

dlinn [17]

Answer:

4 * 14

Step-by-step explanation:

Given

32 + 24

Required

Write as a product of two factors

First, we need to get the GCF of 32 and 24

The factors of 32 and 24 are:

$32 = 1, 2, 4, 8, 16, 32.$

$24 = 1, 2, 3, 4, 6, 8, 12, 24$

The GCF (greatest common factor) is 8

So, the expression 32 + 24 can be rewritten as:

$32 + 24= 4(8 + 6)$

Add 8 + 6

$32 + 24= 4(14)$

$32 + 24= 4 * 14$

Hence,

32 + 24 can be rewritten as 4 * 14

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2 years ago

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Varvara68 [4.7K]

Answer:

Step-by-step explanation:

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2 years ago

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What percent of 80 is 20​

What percent of 80 is 20