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3 years ago

What is your estimate for the total number of hairs on your head?

Mathematics

2 answers:

netineya [11]3 years ago

6 0

Answer:

100,000

Step-by-step explanation:

Maurinko [17]3 years ago

5 0

Answer:

you cant really know how many because at a young age you grow hair and your your getting old you lose hair so you cant really know who much hair is on your head

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What is the distance ab rounded to the nearest tenth when a=(-1,2) and b=(1,-2).

Tom [10]

Answer:

it gives you the formula, so all you have to do is plug in the coordinates

Step-by-step explanation:

7 0

2 years ago

ASAP WILL MARK BRAINLIEST

SashulF [63]

V=lengthxwidthxheight
v=2 1/2x2 1/2x 5
=31.25
35-31.25=3.75
The answer is 3.75cm³

7 0

3 years ago

An irregular parallelogram rotates 360° about the midpoint of its diagonal. How many times does the image of the parallelogram c

Ad libitum [116K]

Answer:

The correct options is A.

Step-by-step explanation:

The each diagonal of an irregular parallelogram divides the parallelogram in two equal and congruent parts. The diagonal bisects each other.

It means, if a irregular parallelogram rotates 180° about the midpoint of its diagonal, then the image of the parallelogram coincide with its preimage during the rotation.

If a irregular parallelogram rotates 360° about the midpoint of its diagonal, then the image of the parallelogram coincide 2 times with its preimage during the rotation.

Therefore the correct option is A.

6 0

2 years ago

The pages of a book are numbered 1 to 200 and each leaf is 0.15 mm thick. If each cover is 2.5 mm thick, calculate the thickness

Serga [27]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Thickness of the book is ~

$20 \: mm = 2 \: cm = 0.02m$

Refer to the attachment for solution ~

7 0

2 years ago

Pls help with Trigonometric

Sav [38]

The value of the given trigonometry function is 2√15/15

<h3>Half angles</h3>

Half angles are trigonometric identities used to express sine, cosine and tangent of half angles.

For instance the value of cos theta is expressed as shown below;

cosФ = cos(Ф/2+Ф/2)

cosФ = cos²Ф/2-sin²Ф/2
cosФ = cos²Ф/2-(1-cos²Ф/2)
cosФ = 1 - 2cos²Ф/2

Given the following parameters

cosФ = -7/15

Substitute

cosФ = 1 - 2cos²Ф/2

-7/15 = 1 - 2cos²Ф/2

-2cos²Ф/2 = -7/15 - 1

-2cos²Ф/2 = -8/15

cos²Ф/2 = 4/15
cosФ/2 = 2/√15

Rationalize

2/√15 * √15/√15

2√15/15

Hence the value of the given trigonometry function is 2√15/15

Learn more on trigonometry function here: brainly.com/question/2254074

#SPJ1

8 0

1 year ago