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3 years ago

Does anyone know this?

Mathematics

1 answer:

KengaRu [80]3 years ago

4 0

Answer:

Option (C) 1.88*10⁻⁵>6.59*10⁻⁶

Step-by-step explanation:

1.88*10⁻⁵>6.59*10⁻⁶

On solving the equation C)

The values are 0.0000188>0.00000659 which is correct as compared to other options as the equation C is true

Whereas in option B, the solved values are 0.00000659 $\geq$ 0.0000188 which is not true

In option D) 0.0000188 < 0.00000659 which is opposite of option C) and is false. Option A is also not true as the LHS And RHS values are not equal on solving the given value.

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How do you add vectors? Add the vector <3,4> to the vector that goes 7 units at an angle of 2π/3.

lawyer [7]

Answer:

The sum of the two vectors is the vector <-0.5 , 4+3.5 $\sqrt{3}$ >

Step-by-step explanation:

The horizontal component (x) of a vector whose magnitude is b units and its direction is Ф° is b cos Ф

The vertical component (y) of a vector whose magnitude is b and its direction is Ф is b sin Ф

The vector is

∵ The vector goes 7 units at an angle $\frac{2\pi }{3}$

- That means its magnitude is 7 and its direction is $\frac{2\pi }{3}$

∴ x = 7 cos( $\frac{2\pi }{3}$ )

∴ y = 7 sin( $\frac{2\pi }{3}$ )

∵ cos( $\frac{2\pi }{3}$ ) = $-\frac{1}{2}$

∵ sin( $\frac{2\pi }{3}$ ) = $\frac{\sqrt{3}}{2}$

- Substitute them in x and y

∴ x = (7)( $-\frac{1}{2}$ )

∴ x = -3.5

∴ y = (7)( $\frac{\sqrt{3}}{2}$ )

∴ y = 3.5 $\sqrt{3}$

∴ The vector is <-3.5 , 3.5 $\sqrt{3}$ >

Now lets add the vectors by adding xs and ys components

∵ <3 , 4> + <-3.5 , 3.5 $\sqrt{3}$ > = <3 + -3.5 , 4 + 3.5 $\sqrt{3}$ >

∴ <3 , 4> + <-3.5 , 3.5 $\sqrt{3}$ > = <-0.5 , 4+3.5 $\sqrt{3}$ >

∴ The sum of the two vectors is the vector <-0.5 , 4+3.5 $\sqrt{3}$ >

5 0

3 years ago

53% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a pr

koban [17]

Can you be more specific about what is P(5)? The probability would probably be around five though.

5 0

4 years ago

(I NEED THIS ASAP) Find the slope of the line. Use points shown, (-1,-5) and(2,1)

patriot [66]

Answer:

2/1 or 2

Step-by-step explanation:

You go up 6 and over 3 simplify 6/3 to 2/1=2

3 0

3 years ago

(5x-6) + (2x-6)add the polynomials

Thepotemich [5.8K]

In this question, let's add those polynomials

(5x-6) + (2x-6)

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5x +2x -6-6

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Since this is not an equation, no further step can be done.

8 0

1 year ago

At a farmers market, oranges sell for $5 per bag and apples sell for $3 per bag. Jordan buys 7 bags of fruit for $31. How many b

ExtremeBDS [4]

Answer

Find out how many bags of each type of fruit did jordan buys .

To prove

let us assume that the number of orange bags jordan buys be = x

let us assume that the number of apples bags jordan buys be = y

As given

At a farmers market, oranges sell for $5 per bag and apples sell for $3 per bag.

Jordan buys 7 bags of fruit for $31.

Than the equation becomes

x + y = 7

5x + 3y = 31

Multiply x + y = 7 by 3 and subtracting from 5x + 3y = 31 .

5x - 3x + 3y - 3y = 31 -21

2x = 10

$x = \frac{10}{2}$

x = 5

put this in the x + y = 7 .

5 + y = 7

y = 7-5

y = 2

Therefore the number of oranges bags jordan buys be 5 .

the number of apples jordan bags buys be 2.

Hence proved

3 0

3 years ago