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2 years ago

Suppose the base and height ( 8 and 6) are multiplied by 1/2, what effect would this have on the area

Mathematics

1 answer:

Feliz [49]2 years ago

6 0

Answer:

Here is the answer hope it helps:)

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Simplify 2b –7+3b+4 –b+3.

madam [21]

Answer:

7 0

3 years ago

Read 2 more answers

Calculate the sample standard deviation of data from Question 1 76,45,64,80,92

mash [69]

Answer:

$S.D = 15.98$

Step-by-step explanation:

Given: 76,45,64,80,92

Required: Determine the standard deviation

We start by calculating the mean

$Mean = \frac {\sum x}{n}$

Where x-> 76,45,64,80,92 and n = 5

$Mean = \frac {76+45+64+80+92}{5}$

$Mean = \frac{357}{5}$

$Mean = 71.4$

Subtract Mean (71.4) from each of the given data

$76 - 71.4 = 4.6\\45 - 71.4 = -26.5\\64 - 71.4 = -7.4\\80 - 71.4 = 8.6\\92 - 71.4 = 20.6$

Determine the absolute value of the above result

$|4.6| = 4.6\\|-26.5| = 26.5\\|-7.4| = 7.4\\|8.6| = 8.6\\|20.6| = 20.6$

Square Individual Result

$4.6^2 = 21.16 \\26.5^2 = 702.25\\7.4^2 = 54.76\\8.6^2 = 73.96\\20.6^2 = 424.36$

Calculate the mean of the above result to give the variance

$Mean = \frac {\sum x}{n}$

$Mean = \frac{21.16 + 702.25 + 54.76 + 73.96 + 424.36}{5}\\Mean = \frac{1276.49}{5}\\Mean = 255.298$

Hence, Variance = 255.298

Standard Deviation is calculated by $\sqrt{Var}$

$SD = \sqrt{255.298}$

$S.D = 15.9780474402$

$S.D = 15.98 (Approximated)$

6 0

3 years ago

A race is 1 2/3 miles long. If you just run half of the race, how long far have you run?

brilliants [131]

You would run 2.5/3 miles or .833 miles

7 0

3 years ago

✓-32 imaginary numbers

Lynna [10]

Answer:

√-32 imaginary numbers

$\sqrt{ - 32} \\ = \sqrt{ - 1 \times 16 \times 2} \\ = \sqrt{ - 1} \times \sqrt{16} \times \sqrt{2} \\ =\boxed{ 4 \sqrt{2} i}$

<h3>4√2i is the right answer.</h3>

8 0

3 years ago

What is 5.3 as a mixed number

Gekata [30.6K]

5 3/10 because if it is in the tenth place it will be over 10 then 5 is the whole numbers. Did this help?

6 0

3 years ago