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Tanya [424]
3 years ago
6

PLS HELP ASAP I NEED HELP!

Mathematics
2 answers:
trasher [3.6K]3 years ago
8 0
The correct answer is B. 3x^2-8x-1 because when you combine like-terms, it yields this answer.

ollegr [7]3 years ago
6 0
(2x² - 4x + 3) + (x² - 4x - 4) =
2x² - 4x + 3 + x² - 4x - 4 =
3x² - 8x -1

B.
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ratelena [41]

Answer: Square mean..............................................................................................

7 0
3 years ago
A car can travel 65 miles in 1 hour. If the car continues at that speed for 12 hours, how many miles will it travel? (please sho
seropon [69]
A car can travel 65 miles per hour.

Over 12 hours, it will travel 780 miles.

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3 0
3 years ago
Read 2 more answers
(x+x)^2 × -(x×(-1))=4+x-x^2 <br> solve for x, show work.
Anna71 [15]

Answer:

x = 1

x = -5/8   + i* root( 39)  / 8

or x = -5/8   - i* root( 39)  / 8

Step-by-step explanation:

(x+x)^2 × -(x×(-1))=4+x-x^2

solve for x, show work.

(x+x)^2 ×  -(x×(-1))     =   4+x-x^2

Simplify:

(2x)^2  * (-(-x))  =  4 + x -  x^2

4x*x * (-(-x)) = 4 + x - x*x

4*x*x*x  = 4  + x - x*x

4*x*x*x - 4  =  x *(1 - x)

4* (xxx - 1)  = x * (1- x)

4* (x - 1)*( x*x +x + 1)  =  x (1 - x)

4( xx + x + 1)  = -x

x = 1 is a solution.

4xx + 4x + 4 = -x

4xx + 5x + 4 = 0

x = -5/8  +   root(25 - 4*4*4) / 2*4

x = -5/8   + i* root( 39)  / 8

or x = -5/8   - i* root( 39)  / 8

also x = 1

6 0
3 years ago
Follow the steps to find the value of x 1/5(x)5/1=6/3(5/1)
german

Answer: x=10

This is the answer I got.

6 0
3 years ago
When the county fair opened its gates, 68 people entered the fairgrounds. After one hour, there were 1.5 times as many people on
pickupchik [31]

Answer:

y=68(1.5)^(x-1)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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