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Darya [45]
3 years ago
5

(8x^2 + 4x - 6x^2)2 + 7x^2 - 2x ALgebra Only nerds can solve this

Mathematics
2 answers:
andrew11 [14]3 years ago
6 0

Answer:

11x2+6x

Step-by-step explanation:

Sergio [31]3 years ago
5 0

Answer: its either 21x^2 +2x or 11x^2-6x Im not sure which one is solved correctly :/

Step-by-step explanation:

8x^2+4x-6x^2+2+7x^2-2x

21x^2 +2x

or

(8x^2+4x-6x2)2+7x^2-2x

-12x^2+8x+16x^2+7x^2-2x

11x^2-6x

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Please solve in the next 10 minutes pleaseeee
Alex787 [66]

Answer:

43.82 mph

266.67 feet

Step-by-step explanation:

Given :

S = √30fl

S = speed of car

f = drag Coefficient

l = Length of skid mark

If f = 0.8 ; l = 80 feets

s = √30fl

s = √(30*0.8*80)

s = √1920

s = 43.817

s = 43.82 mph

B.)

s = 80 mph

f = 0.8

s = √30fl

80 = √30*0.8*l

80 = √24l

Square both sides

80² = 24l

6400 = 24l

l = 6400/24

l = 266.67 feets

6 0
3 years ago
Which is an example of a substitution mutation?
natka813 [3]

Answer:

1. Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. For example, sickle cell anemia is caused by a substitution in the beta-hemoglobin gene, which alters a single amino acid in the protein produced.

2. A - Mutations are sometimes helpful, sometimes harmful, and sometimes neutral

Step-by-step explanation:

7 0
3 years ago
Seven times a number is 5600. what is the number?
Vika [28.1K]
To do this you need to work backwards. if you note the number as 'n' you can put
 7n = 5600
to find n you simply divide both sides by 7 getting
n = 5600/7 
n = 800
5 0
4 years ago
Read 2 more answers
Which of the statements about the following quadratic equation is true?
Sedaia [141]
After manipulating above equation we get, 2x^2 - 7x - 8= 0. Discriminant= b^2 - 4ac = (-7)^2 - 4(2)(-8) = 113>0. So there are 2 real roots :)
3 0
3 years ago
Read 2 more answers
Neil tried to rewrite the expression 5^-6/5^-4
Mandarinka [93]

Answer:

No mistakes unless they want it written as 1/25

5 0
3 years ago
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