320÷b∙20 and 320÷(b∙20) for b=4

Mathematics

1 answer:

blsea [12.9K]3 years ago

6 0

Answer:

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step explanation:

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What is the length of the missing leg?

Crank

Answer:

$a=\sqrt{609}\\\\a\approx 24.67793$

Step-by-step explanation:

To solve for the leg of the missing right triangle, one must use the Pythagorean theorem. The Pythagorean theorem states the following,

$a^2+b^2=c^2$

Where (a) and (b) are the sides adjacent to or next to the right angle. (c) is the side opposite the right angle. Substitute in the given values and solve for the unknown,

$a^2+b^2=c^2\\$

Substitute,

$a^2+40^2=47^2\\$

Simplify,

$a^2+1600=2209\\$

Inverse operations,

$a^2=609$

$a=\sqrt{609}\\\\a\approx 24.67793$

8 0

3 years ago

Read 2 more answers

When positive integer a, which has n digits, is multiplied by (n 2), the product is a number with (n 1) digits, all of whose dig

ahrayia [7]

Instead use WolframAlpha.com for math questions I would paste the answer but a cretinous fop has "disabled" that feature by javascript -- which is trivial to circumvent but I won't bother with the time.

6 0

4 years ago

Uggh!! help pls last question

RideAnS [48]

Answer:

The answer is 46.

Step-by-step explanation:

You have to substitute the value of a and c into the expression :

$a + 9c$