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Veseljchak [2.6K]

3 years ago

12

ABC is a triangle. D is a point, vectors 2BD = 3DC Prove vectors 2AB + 3AC = 5AD

1 answer:

MakcuM [25]3 years ago

5 0

3Ac?????????????????

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What does the expression represent????

egoroff_w [7]

Remark

The problem is not giving you the answer. The answer is a number raised to the third power divided by 10.

The problem is trying to tell you what's wrong with the other answers.

<em><u>Lower Left</u></em>: The problem is that that is a 1/2 truth. It is a number divided by 10. But that's not as complete an answer as the given answer. You have to note that g is raised to the 3rd power.

<em><u>Upper Right</u></em>: The problem (and this is one of those things I don't know how to explain because I don't know why you would choose it) that the number (g) is raised to the third power not the second. So this choice is wrong.

<em><u>Lower Right:</u></em> Multiplication would place the ten right beside the g as in 10g^3. The bar under g indicates division

4 0

4 years ago

Please help me with these 3 questions i will mark best answer brainliest!

Agata [3.3K]

I only know #1 which is 0.85

6 0

4 years ago

Read 2 more answers

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

What is the length of the hypotenuse triangle if both sides are 36

vovikov84 [41]

Answer:

<h3> $\boxed{ \bold{ \huge{ \boxed{ \sf{36 \sqrt{2} \: \: units}}}}}$ </h3>

Step-by-step explanation:

Given,

Perpendicular ( P ) = 36

Base ( b ) = 36

Hypotenuse ( h ) = ?

<u>Finding</u><u> </u><u>the </u><u>hypotenuse </u> :

<u>Using </u><u>the </u><u>Pythagoras </u><u>theorem</u><u> </u>:

$\sf{ {h}^{2} = {p}^{2} + {b}^{2} }$

plug the values

⇒ $\sf{ {h}^{2} = {36}^{2} + {36}^{2} }$

Evaluate the power

⇒ $\sf{ {h}^{2} = 1296 + 1296}$

Add the numbers

⇒ $\sf{ {h}^{2} = 2592}$

Squaring on both sides

⇒ $\sf{h = 36 \sqrt{2} }$ units

Hope I helped!

Best regards!!

7 0

3 years ago

-X/3=9 linear equations

Pepsi [2]

Answer:

x = -27

Step-by-step explanation:

-x/3 = 9

Multiply each side by -3

x/-3 * -3 = 9*-3

x = -27

3 0

3 years ago

Read 2 more answers