2 years ago

Find an

Mathematics

1 answer:

Ne4ueva [31]2 years ago

3 0

-5x+4y-7x-9y
-12x-5y
12x+5y=I

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Answer:

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Read 2 more answers

Two forces act on an object. The first Force has a magnitude of 400 Newtons and acts at an angle of 30 degrees as measured from

Sedaia [141]

ANSWER

Option D is correct

EXPLANATION

We resolve the forces into component forms.

$F_1 = 400 \cos(30) i + 400 \sin(30) j$

$F_1 = 200 \sqrt{3} i +200j$

Also the second is resolved to obtain,

$F_2= 280 \cos(135) i + 280 \sin(135) j.$

$F_2= - 140 \sqrt{2} i + 140 \sqrt{2} j$

To find the resultant vector, V, We add the corresponding components of the two forces to get:

$V=F_1+F_2$

$\implies \: V = (200 \sqrt{3} - 140 \sqrt{2} )i + (200 + 140 \sqrt{2})j$

The correct answer is D.

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3 years ago

A circle with radius of 1 cm sits inside a 3 cm x 3 cm rectangle.

alina1380 [7]

Answer:

6.14

Step-by-step explanation:

Find area of shaded region:

regtangle area - circle area = shaded area

Regtangle area:

3x3=9

Circle area:

Pi (3.14) x radius x radius= 3.14

area all together if shaded region

9-3.14=6.14

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2 years ago

HELPPP!!!!<br><br> Complete the two-column proof by filling in the blanks.

Brilliant_brown [7]

Answer:

2. Substitution property

3. Given

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5. Substitution property

6. Subtraction property of equality

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8. Given

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Step-by-step explanation:

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2 years ago