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bonufazy [111]
3 years ago
8

Work out the lengths of sides a and b. Give your answers to 1 decimal place.

Mathematics
1 answer:
torisob [31]3 years ago
3 0

Step-by-step explanation:

{a}^{2}  =  {8}^{2}  +  {5}^{2}  \\  {a }^{2}  = 64 + 25 \\  {a}^{2}  = 89 \\ a =  \sqrt{89}  = 9.4 \: cm

{17}^{2}  =  {12}^{2}  +  {b}^{2}  \\  {b}^{2}  =  {17}^{2}  -  {12}^{2}  \\  {b}^{2}  = 289 - 144 \\  {b}^{2}  = 145 \\ b = 12 \: cm

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Answer:

3000 is your answer

Step-by-step explanation:

The 3 in the hundreds place if the number 587,349 has a value of 300. This 300 is 1/10 the value of the number you're looking for, so if x is the number you're looking for, then

300 =  \frac{1}{10} x

300 \times 10 =  \frac{1}{10} x \times 10

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Step by step explanation:
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Vika [28.1K]
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Answer:

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The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:

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Hope this helped!

Step-by-step explanation:

8 0
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