4 years ago

PLEASE HELP I GOT STUCK HELP ASAP

Mathematics

1 answer:

OLga [1]4 years ago

4 0

Answer:

A 24 this will help you.

Step-by-step explanation:

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ladessa [460]

Answer:

2 8 20

Step-by-step explanation:

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3 years ago

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siniylev [52]

I think it’s 46.3 units squared that is the answer.

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4 years ago

Find the roots for f(x) = x4 + 21x2 – 100.

Shalnov [3]

We will use the substitution:
t = x² ;
t² + 21 x - 100 = 0
t² + 25 t - 4 t - 100 = 0
t ( t + 25 ) - 4 ( t + 25 ) = 0
( t + 25 ) ( t - 4 ) = 0
t 1 = - 25, t 2 = 4
x = √t
Answer:
The roots are:
x 1 = 5 i
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4 years ago

The number of girls in three-child families in a certain geographic area is investigated. Of 212 families with exactly three chi

Sati [7]

Answer:

p = 0.513

Step-by-step explanation:

There are 212 families with exactly 3 children. So in all, there are 212*3 = 636 children.

Of those,

The number of girls is:

81 + 76*2 + 31*3 = 326

That is, 326 girls out of 636 children.

Then

$p = \frac{326}{636} = 0.513$

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4 years ago

Saima goes to her friend every 15 days and laiba goes to same friend every 18 days.After how many days saima and laiba will visi

jok3333 [9.3K]

Answer:

33 days

Step-by-step explanation:

15 + 18 = 33

3 0

3 years ago