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2 years ago

Help me with this please!!

Mathematics

1 answer:

yulyashka [42]2 years ago

6 0

I think this is how u ans it , haha.
Not sure if its comp right but im sure u can get method marks T-T

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Classify the four angles of the quadrilateral.

makkiz [27]

Answer:

<A= right

<B= acute

<C= obtuse

<D= acute

Step-by-step explanation:

5 0

3 years ago

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

What is (6.89+14.52)+(-14.52)???

MrRa [10]

The answer is 6.89 because
6.89+14.52=21.41
So 21.41+(-14.52)=6.89

7 0

3 years ago

Which is first X axis or Y axis?

Svetllana [295]

Answer:

You always do the X-axis first. Hope this helps! :)

<h3>CloutAnswers</h3>

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3 years ago

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Pls help 20 points <br><br> 7th grade math

irina [24]

Answer:

Step-by-step explanation:

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3 years ago

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Help me with this please!!​

Help me with this please!!