3 years ago

PLEASE HELP! 18-20 PLEASE HELP ME

Mathematics

1 answer:

enyata [817]3 years ago

7 0

Answer:

Step-by-step explanation:

ez as pie

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What is the probability that all three of them will have birthdays in the same month as you?

Effectus [21]

Probabilty = 12×(1/12)^3=1/144

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3 years ago

Write the vector u as a sum of two orthogonal vectors, one of which is the vector projection of u onto v, projvu u=(-8,8) , v= (

Jobisdone [24]

Answer:

none of the given options is true

Step-by-step explanation:

Given: u=(-8,8) , v= (-1,2)

To find: vectors $w_1,w_2$ such that $u=w_1+w_2$

Solution:

A vector is a quantity that has both magnitude and direction.

$proj_vu=\frac{u\cdot v}{\left | v \right |^2}(v)\\=\frac{(-8,8)\cdot (-1,2)}{(\sqrt{ (-1)^2+2^2})^2}(-1,2)\\=\frac{8+16}{5}(-1,2)\\=\frac{1}{5}(-24,48)\\=(-4.8,9.6)$

Let $w_1=(-4.8,9.6)$

So,

$w_2=u-w_1\\=(-8,8)-(-4.8,9.6)\\=(-8+4.8,8-9.6)\\=(-3.2,-1.6)$

So, u = $(-4.8,9.6)+(-3.2,-1.6)$

So, none of the given options is true

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3 years ago

Round 4.88 to the nearest tenth

Minchanka [31]

4.88 rounded to the nearest tenth is 4.9

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HELP PLEASE THIS IS DUE IN 5 MINUTES

Reika [66]

Answer:

Part A:

Since Jasmine has more cousins rhan Brenda, who has 4 cousins, then the amount of cousins that Jasmine has (j) is greater than 4 so j > 4

Part B:

We have a number line and we draw an arrow starting from 4 and going to the right.

Hope this helped!

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3 years ago

Can you help me in this question?

Norma-Jean [14]

Answer: rational number

Step-by-step explanation:

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