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Volgvan
2 years ago
11

PLEASE HELP!!!!! OVER DUE!! 100 POINTS!

Mathematics
1 answer:
serious [3.7K]2 years ago
3 0

Answer:

2u-1/3v = (4, -2)

Step-by-step explanation:

Given vector u and v,

v = (-6, -6)

u = (1, -2)

2*u = (2*1, -2*2) = (2, -4)

1/3*v = (1/3*-6, 1/3*-6) = (-2, -2)

So, 2u = (2, -4) and 1/3*v = (-2, -2)

We have 2u-1/3v = (2, -4) - (-2, -2) = (4, -2)

Therefore, 2u-1/3v = (4, -2)

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3 years ago
The measure of ∠ABD is (0.18x+54)° and the measure of ∠CBD is (0.07x+39)°. find the value of x.
snow_lady [41]

Answer:

x = 348

Step-by-step explanation:

From the given we can tell it a supplementary angle.

<u>Don't know what supplementary angle is?</u>

<em>Supplementary angle are angles that :</em>

<em>Equal 180 °</em>

<em />

<u><em>Solve:  </em></u>

<em>Since,</em>

<em>∠ABD is (0.18x+54)° </em>

<em>∠CBD is (0.07x+39)°</em>

<em />

<em>Thus,</em>

<em>(0.18x+54) + 0.07x + 39 = 180</em>

<em>Group likes terms:</em>

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<em>Subtract 93 from both sides</em>

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<em />

<em>Check Answer:</em>

<em>0.18(348) + 54 + 0.07(348) + 39 </em>

<em>= 180</em>

<em />

<em />

8 0
2 years ago
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