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STALIN [3.7K]
3 years ago
10

Using the primary trigonometric formulas you learned in Lesson 1, explain why the equation  cos q = 1.4 has no solutions.​

Mathematics
1 answer:
AysviL [449]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

For the equation to have solutions , then

- 1 ≤ cosq ≤ 1

Since cosq = 1.4 ( out with limits )

Then the equation has no solutions

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If m∠W = 105° and m∠Y = 75°, then m∠X = <br><br> Please show your work, so I know the process.
Paha777 [63]

Answer:

30°

Step-by-step explanation:

First we must know that the sum of the interior angles of a triangle sum up to 180°.  Furthermore, a straight line is also 180°.  By using these what we know we can determine what the value of m∠X is.

First we know that m∠W and m∠Z make up a straight line, since m∠W is 105° it follows that:

180° = m∠W + m∠Z

And so:

m∠Z = 180° - m∠W = 180°-105° = 75°

m∠Z = 75°

Now, we also know that the sum of m∠X + m∠Y + m∠Z = 180° and so:

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m∠X = 180° - 75° - 75° = 30°

Therefore, m∠X = 30°


7 0
4 years ago
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SVETLANKA909090 [29]
Answer: Both

Explanation: The triangles all have corresponding congruent angles. We can tell this by finding the third angle of the original problem: 96.

Then you can read each triangle by what it states. Angle A is congruent to the corresponding angles in the other triangles, which are Q and T. Angle B is congruent to the corresponding angles in the other triangles, which are R and U. Angle C is congruent to the corresponding angles in the other triangles, which are S and V.

We know heard similar since they have congruent angle measures in corresponding spots.
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3 years ago
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