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photoshop1234 [79]
2 years ago
12

Hana is putting in a tile floor she needs to determine the angles that should be cut in the tires to fit in the corner that angl

e in the corner measures 90° one piece of the tire will have a measure of 38 degrees write an equation and use it to determine the measure of the unknown angle​
Mathematics
1 answer:
Alex_Xolod [135]2 years ago
3 0

Answer:

x = 52°

Step-by-step explanation:

I have attached an image to depict the given angles.

From the attached image, we can see that the unknown angle is x°.

Thus, since that corner is 90°, then;

x + 38 = 90

Subtract 38 from both sides to get;

x = 90 - 38

x = 52°

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A triangular table has angles with measures in the ratio 7:9:4. What is the measure of the smallest angle?
Paraphin [41]
The angles must add to 180 degrees.
Since the angles are in the ratio 7:9:4, their measures are not 7, 9, and 4 since 7, 9, and 4 do not add to 180.  If you multiply 7, 9, and 4 by the same number, the new numbers will be in the same ratio. Since we do not know what that number is, we can use x for it.

Multiply 7, 9, and 4 by x to get
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7x + 9x + 4x = 180

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Now that we know x equals 9, substitute x with 9 and evaluate 7x, 9x, and 4x to find the actual angle measures.

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3 years ago
For the function f(x)=5x^2-7x, what is f(-3)?
Ainat [17]

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