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1 year ago

If v•w=0, then the two vectors v and w are

Mathematics

1 answer:

Brrunno [24]1 year ago

8 0

When the scalar product between two vectors is equal to zero, we can say that they form an angle of 90 degrees.

This means that if v•w=0, then the two vectors v and w are orthogonal.

The correct answer is orthogonal.

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Frank is organizing his movie collection. He sees that 7 of his 25 movies are comedies. What percent of frank's movies are comed

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

if Frank has 25 movies and 7 are comedies

25 movies...........................100%

7 comedies represents........?%

=(7*100)/25=28% are comedies

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3 years ago

Work out the perimeter of this semicircle. take pi to be 3.142

Vanyuwa [196]

Answer:

P = 25.71 cm

Step-by-step explanation:

Perimeter of semicircle = πD/2

Where D=10 cm

P = (3.142)(10)/2

P = (3.142)(5)

P = 15.71 cm

Complete Perimeter of Semicircle = P + Diameter

= 15.71 + 10

= 25.71 cm

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3 years ago

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Step-by-step explanation:

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3 years ago

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Natalija [7]

Hey there!

The answer to your question is $95.55$

Formulas:

Area of semi-circle = $\frac{1}{2}(\pi r^2)$

Area of rectangle = $lw$

Area of triangle = $\frac{bh}{2}$

Now solve:

semi-circle

$\frac{1}{2}\pi3^2$

$\frac{1}{2}\pi9$

$4.5\pi$

(We will use 3.14 as approx. for pi)

$4.5 * 3.14\\23.55$

rectangle

$10(6)\\60$

triangle

$\frac{4(6)}{2}$

$\frac{24}{2} \\12$

Now add them all together:

$23.55+60+12\\95.55$

Have a terrificly amazing day!

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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