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Helga [31]
3 years ago
7

Find the missing side x

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer:

x = 21.52

Step-by-step explanation:

Given:

hypotenuse (That has to be found out)

Side adjacent to the given angle

and an angle,

Hence we can say that Cos ratio would be used;

Cos(28) = 19 / x

x = 19 / Cos(28)

x = 21.52

Hope this helps!

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Dafna1 [17]
To simplify the given equation, you want to combine like terms. Since both terms have x^8, we can add the coefficients and leave the x^8
3x^8-7x^8 (do 3-7)
=-4x^8 so the answer is C

Hope this helps
5 0
3 years ago
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A hypothetical square grows so that the length of it's diagonals are increasing at a rate of 8 m/min. How fast is the area of th
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Answer:

32m^{2}/min

Step-by-step explanation:

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Combining these two equations yields;

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We are required to find;

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By chain rule;

\frac{dA}{dt}=\frac{dA}{dz}*\frac{dz}{dt}

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\frac{dA}{dz}=z

Therefore,

\frac{dA}{dt}=\frac{dA}{dz}*\frac{dz}{dt} = 8z

When z is 4m the area of the square will be increasing at a rate of;

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5 0
3 years ago
Pls help will give brainiest. Find the length of side A.
Drupady [299]
I think the answer is 12.
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