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3 years ago

If a polynomial function f(x) has roots 3+

Mathematics

1 answer:

irinina [24]3 years ago

7 0

Answer:

Step-by-step explanation:

3+√5 is a root.

so 3-√5 is also a root

or (x-(3-√5)) is also a factor of f(x)

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If a 20 ft tree casts a 15ft shadow, how long a shadow is cast

Irina-Kira [14]

Answer:

25 ft

Step-by-step explanation:

c = √a^2 + b^2 = √20^2 + 15^2 = 25ft

Hooke me up with a 5 star and a thanks :)

4 0

2 years ago

Probability of father and mother born in Michigan independent.

raketka [301]

Answer:

A. no, not independent

Step-by-step explanation:

Let A = "father born in Michigan" and B = "mother born in Michigan".

If A and B are independent, then ...

P(A|B) = P(A)

The table tells us ...

P(A|B) = P(A&B)/P(B) = 0.29/0.73 ≈ 0.397

and

P(A) = 0.48

Since 0.48 ≠ 0.397, we must conclude that the events are not independent.

6 0

3 years ago

HELP MEEEEEEEEE plz

Diano4ka-milaya [45]

Answer:

Step-by-step explanation:

Red : Blue :

3 8

We have 40 blue marbles

Multiply 8 by what to get 40

40/8 =5

So we need to multiply by 5

Red : Blue :

3*5 8*5

15 40

There are 15 red marbles

8 0

3 years ago

Read 2 more answers

A white-tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute.

Sphinxa [80]

In 1 minute, bison runs 3520 feet
In 60 minutes, the bison would run
3520*60 feet
211200 feet per hour.
These are equivalent to;
40 miles per hour since 1 mile is equivalent to 5280 feet.
The bison is faster by 10 miles per hour

6 0

3 years ago

Read 2 more answers

What is the answer?? Please help me

Sergeeva-Olga [200]

Answer:

k-4=9

k=9+4

k=13

¥¥¥¥¥¥

6 0

3 years ago