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Irina-Kira [14]
3 years ago
7

The measures of two angles of a triangle are 25° and 87°. Is the triangle acute, right, or obtuse? Explain.

Mathematics
1 answer:
iVinArrow [24]3 years ago
3 0
The answer is A all three angles are acute (less than 90°)
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Can someone please solve both of these showing all the steps I'll add extra points because its two​
EastWind [94]

Answer:

4. 21

5. 32

Step-by-step explanation:

First question:

sin(x) = opp/hyp = 22/63 = 0.3492

x = sin⁻¹(0.3492)

20.43. Rounded to the nearest degree, it would be 21.

Second question:

sin(x) = opp/hyp = 18/34 = 0.5294

x = sin⁻¹(0.5294)

31.96. Rounded to the nearest degree, it would be 32.

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2(2x-3) + 3(x + 1) = 5x +2
Lerok [7]
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5 0
3 years ago
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Find the equation of the cosine graphed.
Lunna [17]

Answer:

C) y = -cos(x) +2

Step-by-step explanation:

The centerline is 2, so 2 is added. That leaves out choices A and B.

There is a minimum (not a maximum) at x=0, so the multiplier is negative, eliminating choice D.

The correct equation is that of C: y = -cos(x) +2.

7 0
3 years ago
What points are solutions to the equation 3x-4y-8=12
ikadub [295]

Answer:

x = 6.67

Step-by-step explanation:

Rewrite the equation:

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Find where y = 0

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Hope it helps! (:

8 0
3 years ago
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cupoosta [38]

Answer:

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Step-by-step explanation:

In order to find out, you add both 8 and 9 together. If the sum is above/higher than the number 13, they can all be made into a triangle. 8+9 is 17 and 17 is higher than 13.

hope this helps!

3 0
2 years ago
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