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3 years ago

6

Please answer my question

1 answer:

gayaneshka [121]3 years ago

8 0

It's (4). (6.0,5.4) !

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Pls help I don’t understand this question very well

kiruha [24]

Answer:

$CD = 12.6866616739cm$

$CD \approx12.7cm$

Step-by-step explanation:

$CB = a$

$AB = b$

$AC = c$

${c}^{2} = {a}^{2} + {b}^{2}$

${a}^{2} = {c}^{2} - {b}^{2}$

$a = \sqrt{ {c}^{2} - {b}^{2} }$

$a = \sqrt{ {12}^{2} - {6}^{2} }$

$a = \sqrt{144 - 36}$

$a = \sqrt{108}$

$CB = \sqrt{108}$

$\sin(D) = \frac{opposite}{hypotenuse}$

$\sin(D) = \frac{CB}{CD}$

$\sin(55) = \frac{ \sqrt{108} }{CD}$

$(CD) \sin(55) = \frac{ \sqrt{108} }{CD} (CD)$

$(CD) \sin(55) = \sqrt{108}$

$\frac{(CD) \sin(55) }{ \sin(55) } = \frac{ \sqrt{108} }{ \sin(55) }$

$CD = \frac{ \sqrt{108} }{ \sin(55) }$

$CD = 12.6866616739cm$

$CD \approx12.7cm$

6 0

3 years ago

Simplify 4 - 4y +y -3

umka2103 [35]

Answer:

1-4y+y

1-3y

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

150 adult complete a survey <br> 80 are women <br> write the ratio men: women in it's simplest form.

Mashcka [7]

70 were men hope it helps

4 0

3 years ago

Read 2 more answers

The cost of an iPhone is $899.99 plus 8.5% tax. What is the cost of tax for the iPhone?

Sliva [168]

Answer:

724.0915

Step-by-step explanation:

multiply 899.99 and 8.5 you get 724.0915

hope this helps

7 0

3 years ago

A constant force of 85 N accelerates towards a 10 kg box from a speed of 3.0 m/s to a speed of 7.0 m/s as it goes 14 m along a h

photoshop1234 [79]

Answer:

Step-by-step explanation:

Let us find the acceleration of box .

v² = u² + 2as

Putting the values

7² = 3² + 2 a x 14

a = 1.43 m /s²

If coefficient of friction be μ

force of friction = μ mg

= μ x 10 x 9.8

= 98μ

Net force pushing the box

= 85 - 98μ

Applying newton's second law

85 - 98μ = 10 x 1.43

98μ = 85 - 14.3

μ = .72

5 0

3 years ago