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kenny6666 [7]
2 years ago
8

Can someone please help me

Mathematics
1 answer:
Effectus [21]2 years ago
8 0

Answer:

140 degrees

Step-by-step explanation:

A straight line is 180 degrees and since we are given 40 degrees of that acute angle, we know that whatever the missing angle degree is, it cant be over 180 degrees or less than 40 degrees. So we take our full measure 180 and subtract 40 because that's what is given.

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Step-by-step explanation:

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3 years ago
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STatiana [176]

Answer:

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Step-by-step explanation:

sin 15 =8/x

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and

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The value of z can be found using the Pythagoras theorem:

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z^2 =  20^2 - x^2 = 50^2 - 30.91^2

z^2 = 1554.57

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Total area = 30.91  * 39.30 + 8 * 39.30 + 29.86 * 39.30 + 2 * 0.5 * 8 * 29.86

=  2942.54 cm^2.

3 0
3 years ago
(-12)/ [-7) + 5] - (-7) 4<br> Help me plz
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Step-by-step explanation:

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Step-by-step explanation:

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