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3 years ago

Please help me on the steps to solving this equation

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

7 0

Answer:C

Step-by-step explanation: Divide the cost by the amount of pencils to find what each pencil cost. Choose the lowest cost per pencil.

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How do you prove triangle congruence

attashe74 [19]

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3 years ago

Angle θ lies in the second quadrant, and sin θ = 3/5. cos θ = tan θ =

storchak [24]

Answer:

$cos\Theta =\frac{4}{5}$

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

Step-by-step explanation:

Given : sin θ = 3/5

To Find : value of cos θ and tan θ

Solution :

use the identity:

$sin^{2}\Theta +cos^{2}\Theta =1$

putting value of sin θ

⇒ $(\frac{3}{5})^{2} + cos^{2}\Theta =1$

⇒ $\frac{9}{25} +cos^{2}\Theta =1$

⇒ $cos^{2}\Theta = 1-\frac{9}{25}$

⇒ $cos^{2}\Theta = \frac{16}{25}$

⇒ $cos\Theta = \sqrt{\frac{16}{25}}$

⇒ $cos\Theta =\frac{4}{5}$

Thus , $cos\Theta =\frac{4}{5}$

Now to find value of tan θ

Since we know that

⇒ $tan\Theta =\frac{sin\Theta }{cos\Theta }$ (identity)

⇒ $tan\Theta =\frac{\frac{3}{5} }{\frac{4}{5} }$

⇒ $tan\Theta =\frac{3}{5}\div \frac{4}{5}$

⇒ $tan\Theta =\frac{3}{5}\times \frac{5}{4}$

⇒ $tan\Theta =\frac{3}{4}$

Thus , the value of

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

$cos\Theta =\frac{4}{5}$

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3 years ago

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Answer: $32

Step-by-step explanation:

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2 years ago

Is the equation true, false or open 9p+8=10p+7

kifflom [539]

9p + 8 = 10p + 7
- 9p - 9p
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   - 7 - 7
   1 = p

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4 years ago