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3 years ago

find the area of a rectangle that has a length of 8.3 inches. and a width that is 0.6 times the length. show work please

Mathematics

2 answers:

grigory [225]3 years ago

6 0

Find the width first...8.3×0.6.....then find the area....length × width= 8.3×4.9=40.67....that's what I got

ValentinkaMS [17]3 years ago

6 0

Area=length×width
8.3
×0.6
=====
6×3=18 put down 8 and carry the
6×8=48 + the 1 =498
498...now count how many numbers are behind the decimals...2 = 4.98 4.98 × 8.3 = 41.334in (2)

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When Vlad moved to his new home a few years ago, there was a young oak tree in his backyard. He measured it once a year and foun

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The tree was 175 centimeters tall when Vlad moved into the house.

7 years passed from the time Vlad moved in until the tree was 357 centimeters tall.

Step-by-step explanation:

The height of the tree, in centimeters, in t years after Vlad moved into the house is given by an equation in the following format:

$H(t) = H(0) + at$

In which H(0) is the height of the tree when Vlad moved into the house and a is the yearly increase.

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This means that $a = 26$

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This means that when t = 4.5, H(t) = 292. We use this to find H(0).

$H(t) = H(0) + 26t$

$292 = H(0) + 26*4.5$

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How many years passed from the time Vlad moved in until the tree was 357 centimeters tall?

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2 years ago

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3 years ago

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And the best conclusion would be:

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Step-by-step explanation:

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The margin of error is the range of values below and above the sample statistic in a confidence interval.

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The confidence interval for the population variance is given by the following formula:

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Since the Confidence is 0.90 or 90%, the value of $\alpha=0.1$ and $\alpha/2 =0.05$ , and we can use excel, a calculator or a table to find the critical values.