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Mariulka [41]
2 years ago
15

Please help me please

Mathematics
1 answer:
ella [17]2 years ago
4 0

Answer:

-4??

Step-by-step explanation:

You might be interested in
What is the value of x?
romanna [79]

Answer:

x = 8°

y = 6°

Step-by-step explanation:

Hello!

All 3 sides of the triangle are equal, indicating that it is an equilateral triangle. The rules of this particular triangle say that all angles are equal to 60°.

We can solve for x by setting the equation 7x+4 to 60.

<h3>Solve for x</h3>
  • 7x + 4° = 60°
  • 7x° = 56°
  • x = 8°

The value of x is 8°.

We can go ahead and solve for y by setting that equation to 60°.

<h3>Solve for y</h3>
  • 8y + 12° = 60°
  • 8y = 48°
  • y = 6°

The value of y is 6°.

5 0
2 years ago
Does anybody know this? I really need help.
ValentinkaMS [17]

Answer:

22 is th area

Step-by-step explanation:

3 0
2 years ago
The population of a city increases by 3.7% per year. If this year's population is 206,000, what will next year's population be,
Annette [7]

Answer:

206,762

Step-by-step explanation:

206,000 * 0.037 = 762.2

762.2 + 206,000 = 206,762.2, rounded to 206762

3 0
2 years ago
Find the solutions for a triangle with a = 16, c =12, and B = 63º.
maks197457 [2]

Answer:

b. A = 71.6°; C = 45.40°; b =15.0

Step-by-step explanation:

The missing values can be found with the help of the Law of Cosine and properties of triangles:

Side b (Law of Cosine)

b = \sqrt{a^{2}+c^{2}-2\cdot a \cdot c \cdot \cos B}

b = \sqrt{16^{2}+12^{2}-2\cdot (16)\cdot (12) \cdot \cos 63^{\circ}}

b \approx 15.022

Angle A (Law of Cosine)

\cos A = -\frac{a^{2} - b^{2}-c^{2}}{2\cdot b \cdot c}

\cos A = - \frac{16^{2}-15.022^{2}-12^{2}}{2\cdot (15.022)\cdot (12)}

\cos A = 0.315

A= \cos^{-1} 0.315

A \approx 71.639^{\circ}

Angle C (Sum of internal angles in triangles)

C = 180^{\circ} - 63^{\circ} - 71.639^{\circ}

C = 45.361^{\circ}

Hence, the right answer is B.

6 0
3 years ago
Pls help i’ll mark you brainliest
k0ka [10]

Answer:

90°

Step-by-step explanation:

please mark brainliest :))

7 0
2 years ago
Read 2 more answers
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