What is -n—5n??? Please answer like rn cuz my homework is due tomorrow!

Measurement of a circle<br><br> (Giving brainliest to correct answer)

xxMikexx [17]

Answer:

C. $9\pi$

Step-by-step explanation:

VU is tangent $\odot W$ at point U and WU is radius.

$\therefore WU \perp VU$

$\implies m\angle VUW=90\degree$

$\therefore \triangle VUW$ is right angle triangle.

WZ = WU = x - 1 (Radii of same circle)

WV = x - 1 + 2 = x + 1

By Pythagoras Theorem:

$WU^2 + VU^2 = WV^2$

$(x-1)^2 +(2x-4) ^2 = (x+1)^2$

$x^2 -2x +1+ 4x^2 -16x + 16=x^2 +2x +1$

$4x^2 -20x + 16=0$

$x^2 -5x + 4=0$

Equating it with

$ax^2 +bx +c=0$

We find:

a = 1, b = - 5, c = 4

$b^2 - 4ac =(-5)^2 - 4(1)(4)= 25-16 =9$

$x=\frac{-b\pm \sqrt{b^2 - 4ac}}{2a}$

$x=\frac{-(-5)\pm \sqrt{9}}{2\times 1}$

$x=\frac{5\pm 3}{2}$

$x=\frac{5+3}{2}, \: x =\frac{5-3}{2}$

$x=\frac{8}{2}, \: x =\frac{2}{2}$

$x=4, \: x =1$

When x = 4, radius (r) = 4 - 1 = 3

When x = 1, radius (r) = 1 - 1 = 0, which is not possible.

Area of $\odot W$

$=\pi r^2$

$=\pi (3)^2$

$=9\pi$

4 0

3 years ago

The multiplicative inverse of -3<br> The additive inverse of -3

TEA [102]

Answer:

multiplicative inverse: -1/3

additive inverse: 3

Step-by-step explanation:

The "multiplicative inverse" is the fancy way to say "reciprocal". It's the number you multiply by to get a result of 1.

The "additive inverse" is the fancy way to say "opposite". It's the number you add to get a result of 0.

5 0

3 years ago

The mass of Earth is 1/138 of the mass of Jupiter. What percent is this hellllllllllllllllllllllllllllllllllllllllllllllllllllll

Over [174]

1 divided by 138 is roughly .7%. Run it through a calculator, then convert the decimal

5 0

4 years ago

Read 2 more answers

Click picture. please help

AleksandrR [38]

For this question we have to take LCM of the fractions to simplify it and process further. So, by LaTeX interpreter equation editor, Here we go.

$\mathbf{Least \: Common \: Multiplier: 3x}$

$\mathbf{\dfrac{2}{x} \times 3x + \dfrac{1}{3} \times 3x - \dfrac{4}{x} \times 3x}$

Combine the fractions to multiply the numerator.

$\mathbf{\dfrac{2 \times 3x}{x} + \dfrac{1 \times 3}{3}x = \dfrac{4 \times 3x}{x}}$

$\mathbf{\dfrac{6x}{x} + \dfrac{3}{3}x = \dfrac{12x}{x}}$

$\mathbf{6 + x = 12}$

Just subtract both of the current sides by the numbered value "6".

$\mathbf{6 + x - 6 = 12 - 6}$

$\boxed{\underline{\mathbf{Final \: \: Answer: \: x = 6}}}$

Hope it helps.

8 0

3 years ago

Help me, and I will attempt to give brainlist and thanks with 5 stars, even if it is incorrect! I am really desperate...

natka813 [3]

Answer:

a) Option 2

b) 12

Step-by-step explanation:

Possible outcomes can be obtained using:

1) A tree diagram

2) The counting principle

4 options for the first trial, 3 for the second

4 × 3 = 12

6 0

3 years ago