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3 years ago

Which expression is equivalent to Square root of 80 ?

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

Answer:

4i√5

Step-by-step explanation:

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Guided Practice

nadezda [96]

Answer:

look on my brainly, i'm still trying to find this answer.. the weather is messing with wifi/internet

Step-by-step explanation:

Use the slope-intercept form y = m x + b to find the slope m and y-intercept b .

Slope:

− 12 /49

y-intercept:

( 0 , 0 )

3 0

3 years ago

Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome

Katyanochek1 [597]

Answer:

In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.

Step-by-step explanation:

6 0

2 years ago

Anna went apple picking she picked 4 times as many red apples as green apples she picked 12 green which equation shows the numbe

skelet666 [1.2K]

The answer is 12•4.

I HOPE IT HELPED

4 0

4 years ago

Read 2 more answers

Two blocks of wood are shaped as right rectangular prisms. The smaller block has a length of 9 cm, a width of 3 cm, and a height

solmaris [256]

1512 I believe! :) I would double all the dimensions first, then multiply them all together.

3 0

3 years ago

Read 2 more answers

Given: cosθ= -4/5 , sin x = -12/13 , θ is in the third quadrant, and x is in the fourth quadrant; evaluate tan 1/2 θ

mrs_skeptik [129]

Answer:

Step-by-step explanation:

If you're looking for what the half angle of the tangent of theta is, I'm a bit confused as to why you think the angle in the 4th quadrant, x, is relevant. But maybe you don't know it isn't and it's a "trick" to throw you off. Hmm...

Anyways, the half angle identity for tangent is

$tan(\frac{\theta}{2})=\frac{sin\theta}{1+cos\theta}$

There are actually 3 identities for the tangent of a half angle, but this one works just as well as either of the others do, so I'm going with this one.

If theta is in QIII, the value of -4 goes along the x axis and the hypotenuse is 5. That makes the missing side, by Pythagorean's Theorem, -3. Filling in our formula:

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{1+(-\frac{4}{5}) }$ which simplifies a bit to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{5}{5} -\frac{4}{5} }$ and a bit more to

$tan(\frac{\theta}{2})=\frac{-\frac{3}{5} }{\frac{1}{5} }$

Bring up the lower fraction and flip it to divide to get

$tan(\frac{\theta}{2})=-\frac{3}{5}*\frac{5}{1}$ which of course simplifies to

-3. Choice A.

6 0

4 years ago