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3 years ago

Can somebody help me ill give u brainlist

Mathematics

2 answers:

liberstina [14]3 years ago

3 0

90 degrees hope this helps :)

forsale [732]3 years ago

3 0

Your answer is 90

You can see that there’s a right angle on the right side of the triangle.
Or, if you want to be more specific:

Since two triangles are congruent,
Angle w=62

So, 180-(28+62)
= 180-90
=90

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I need help asap please? and this is for math? what is 4-5+8x8/4?

Zanzabum

Answer:

the answer is 50 hope this helps

Step-by-step explanation:

4-5=-1

-1+8=7

7+8x8= ?

15x8=120

120/4=50

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2 years ago

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Find the sum 7,388 and 829

FinnZ [79.3K]

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3 years ago

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Find the exact values of a) sec of theta b)tan of theta if cos of theta= -4/5 and sin<0

Gre4nikov [31]

Answer:

Using trigonometric ratio:

$\sec \theta = \frac{1}{\cos \theta}$

$\tan \theta = \frac{\sin \theta}{\cos \theta}$

From the given statement:

$\cos \theta = -\frac{4}{5}$ and sin < 0

⇒ $\theta$ lies in the 3rd quadrant.

then;

$\sec \theta = \frac{1}{-\frac{4}{5}} = -\frac{5}{4}$

Using trigonometry identities:

$\sin \theta = \pm \sqrt{1-\cos^2 \theta}$

Substitute the given values we have;

$\sin \theta = \pm\sqrt{1-(\frac{-4}{5})^2 } =\pm\sqrt{1-\frac{16}{25}} =\pm\sqrt{\frac{25-16}{25}} =\pm \sqrt{\frac{9}{25} } = \pm\frac{3}{5}$

Since, sin < 0

⇒ $\sin \theta = -\frac{3}{5}$

now, find $\tan \theta$ :

$\tan \theta = \frac{\sin \theta}{\cos \theta}$

Substitute the given values we have;

$\tan \theta = \frac{-\frac{3}{5} }{-\frac{4}{5} } = \frac{3}{5}\times \frac{5}{4} = \frac{3}{4}$

Therefore, the exact value of:

(a)

$\sec \theta =-\frac{5}{4}$

(b)

$\tan \theta= \frac{3}{4}$

7 0

4 years ago

Find the sum to infinity

boyakko [2]

Answer:

-7/27

Step-by-step explanation:

-14/54

Hope this helped :)

6 0

3 years ago

I need help with this question plz

pashok25 [27]

First you need to distribute the exponent into the terms for the first parenthesis.

(-3x²y³)³ = (-3)³ * (x²)³ * (y³)³

= -27 *x⁶ *y⁹

= -27x⁶y⁹

Then you multiply -27x⁶y⁹ by x²y.

You just need to add the exponents of x and y:

-27x⁶⁺²y⁹⁺¹

= -27x⁸y¹⁰

5 0

3 years ago