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Ivanshal [37]
3 years ago
15

Help pleasee ASAP !!

Mathematics
1 answer:
valina [46]3 years ago
3 0
An irrational number is a not-terminating and non repeating number.
\sqrt{7} is an irrational number.   
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Mandy runs 4 km in 18 min. she plans to run in a 15 km race. how long will it take her to complete the race?
kompoz [17]
It will take Mandy an hour, seven minutes, and thirty seconds to complete the race.

(67 minutes and 30 seconds)

I hope my answer helped!
6 0
3 years ago
3 gal 2 c=​___ fl oz. PLEASE HELP!!!
Bogdan [553]
Yea what she said was correct
6 0
2 years ago
I need this Now (2x + 1)²
Alla [95]

Answer:

4x² + 4x + 1

Step-by-step explanation:

We know that (a + b)² = a² + 2ab + b², therefore, (2x + 1)² = 4x² + 4x + 1.

7 0
3 years ago
Read 2 more answers
Please explain I don’t I understand help
djyliett [7]

Answer:

Step-by-step explanation:

f (x) = (5(-4)) + a) (3/5 + 4) ( 6 + b)

f (x) = (-20 + a) (6 2/5) (6 + b)

f ( -20 ) = -20 + -20 (a) (6 2/5) (6 + b)

f ( -20 - 6 2/5 ) = (a) (6 2/5 -6 2/5) (6 + b)

f (-26 2/5 - 6 ) = (a) (6-6 +b)

f (-32 2/5-6) = (a) (b)

4 0
2 years ago
The expression below is the factorization of what trinomial-1(x+5)(x+6)
Nadya [2.5K]

Answer:

-x^2 - 11x -30

Step-by-step explanation:

Solve using foiling. Ignore the -1 to begin with and just look at the part in parenthesis. Do x from the first parenthesis times the stuff in the second parenthesis.

ie: x(x) and x(6)

ie: x^2 + 6x

Then do the 5 times the things in the second parenthesis.

ie: 5(x) and 5(6)

ie: 5x + 30

Then add what you got from multiplying the first value to what you got from multiplying the second.

ie: x^2 + 11x + 30

This is a trinomial because it has three different variables. Now change all the signs to negative because of the -1 out front.

ie: -x^2 - 11x -30

4 0
2 years ago
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