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maksim [4K]
3 years ago
6

Math question please help!! Linear equations, quite simple

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0

taena mo

putang ina mo

Pack u

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If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree) A) 32.5° B) 39.2° C) 50.5° D) 57.5°
Ilia_Sergeevich [38]

Answer:

D) 57.5°

Step-by-step explanation:

As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side.

Pythagoras Theorem = c^{2} = a^{2} + b^{2}

a = 7 and b = 11

a^{2} = 49

b^{2} = 121

Plugging in the values, we will get:

c^{2} = 49 + 121

c^{2} = 170

c = \sqrt{170}

To calculate the unknown angle B, we can use law of sine.

Law of sine = \frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

So,

\frac{c}{sinC} = \frac{b}{sinB}

\frac{\sqrt{170} }{sin90} =  \frac{11}{sinB}

Sin90 = 1

sinB = \frac{11}{\sqrt{170} }

B = sin^{-1} (\frac{11}{\sqrt{170} })

B = 57.5°

8 0
3 years ago
1) Solve for x in the following equation: 7x + 10 - 10x - 5 > 20 *
Olenka [21]

Answer:x<1/7 (5 - sqrt(130))

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
14.4% of what number is 10.4
Helga [31]
First, convert "of" to x and put this info into an equation:

Let n represent the unknown number.  

14.4 % x n= 10.4
              n = 10.4 / 14.4%
              n = 72.22222
              n = ~72

Hope this helps!
8 0
3 years ago
Find the arc length
Anton [14]

Answer:

13.92

Step-by-step explanation:

You can refer to the photo I attached

7 0
3 years ago
Please help me with this quick!<br> the picture is above <br> I’ll make you brainly
s2008m [1.1K]

Answer:

The answer is A, C, and D

Step-by-step explanation:

3 0
2 years ago
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