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2 years ago

Please help can figure this out

Mathematics

1 answer:

kondor19780726 [428]2 years ago

7 0

Answer:

I would say D, 9 inches

Step-by-step explanation:

Cuz the the formula for square area: s^2

square have all perfect sides

So if we do 9^2 or 9*9 = 81

Which is closer to 80

8^2 = 64 not close to 80

And the other numbers are bigger so if we double them we only get far way from 80

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Two planes A and B start from the same place and move in different directions making an angle of 50° between them the speed of p

Alika [10]

Answer:

The distance between them is 230.65 miles

Step-by-step explanation:

Here we use the Cosine formula

$a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour$

Now the distance for one hour is

= 230.65 ÷ 1

= 230.65 miles

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3 years ago

A quadrilateral is dilated by a scale factor of 2. It's original side measures are 7, 14, 21, and 28.

algol13

Answer:

14,28,42 and 56

Step-by-step explanation:

Multiply all lengths by 2 as the quadrilateral is dilated by a scale factor of 2

6 0

3 years ago

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mojhsa [17]

Answer:

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3 years ago

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Answer:

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3 years ago

Write the equation x² + 6x + y² – 8y = 19 in standard form.

kirza4 [7]

Answer:

Formula used :

x²+2xy+y² = (x+y)²
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3 years ago

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Please help can figure this out​

Please help can figure this out