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3 years ago

7

ARE YOU A GEOMETRY EXPERT?? ARE YOU WILLING TO HELP ME?? DO YOU NEED POINTS AND BRAINLIEST? COME RIGHT THIS WAY I NEED ALL THE H

ELP I CAN GET AND YOU NEED MY HELP

1 answer:

loris [4]3 years ago

7 0

Answer: 4

Step-by-step explanation: A= 1/2 bh

A= .5 x. 4^2 X sin (30)

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Find the unit vector in the direction of u = (-3,2).

DENIUS [597]

$\bf \textit{unit vector for }(a,b)\implies \left( \cfrac{a}{\sqrt{a^2+b^2}}~~,~~\cfrac{b}{\sqrt{a^2+b^2}} \right)\\\\
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(-3,2)\qquad \stackrel{unit~vector}{\implies }\qquad \left( \cfrac{-3}{\sqrt{(-3)^2+2^2}}~~,~~\cfrac{2}{\sqrt{(-3)^2+2^2}} \right)
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\left( -\cfrac{3}{\sqrt{13}}~~,~~ \cfrac{2}{\sqrt{13}}\right)\\\\
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$\bf \textit{and now let's \underline{rationalize} the denominator for each}
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-\cfrac{3}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies -\cfrac{3\sqrt{13}}{13} \qquad \qquad \qquad \qquad \cfrac{2}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies \cfrac{2\sqrt{13}}{13}
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\textit{and written in \underline{ai+bj form}}\qquad -\cfrac{3\sqrt{13}}{13}i~~~~+~~~~\cfrac{2\sqrt{13}}{13}j$

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3 years ago

One batch of fruit punch contains 1/3 quart grape juice and 1/5 quart apple juice. Colby makes 11 batches of fruit punch. How mu

zhuklara [117]

Answer:

3.66666666667

Step-by-step explanation:

If you multiply the number of batches he makes and the amount of grape juice he needs for every quart, you get and answer of 3.66666666667.

1/3 * 11= 3.66666666667

If you need to round the answer it would be 3.67

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For the following right triangle, find the side length. Round your answer to the nearest hundredth

IRINA_888 [86]

Answer:9.75

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2 – (–8) + (–3) = ???????????????

Lana71 [14]

The answer would be 7 the two parenthesis become a positive

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4 years ago

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Is this a function or not a function? Explain why.

Ivenika [448]

Answer:

this is not a function

Step-by-step explanation:

the bottom numbers need to connect

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3 years ago

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