All categories

3 years ago

What is equivalent to the expression 3x(x-2)+7x-1

Mathematics

2 answers:

AleksAgata [21]3 years ago

8 0

Here you go…………….. ……

OverLord2011 [107]3 years ago

8 0

Hey there!

3x(x - 2) + 7x - 1

DISTRIBUTE 3x WITHIN the PARENTHESES

= 3x(x) + 3x(-2) + 7x - 1

= 3x^2 - 6x + 7x - 1

COMBINE the LIKE TERMS

= (3x^2) - 6x + 7x - 1

= 3x^2 + 1x - 1

= 3x^2 + x - 1

Therefore, your answer is: “3x^2 + x - 1” OR you could say “3x^2 + 1x - 1” because they are both equivalent to each other

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

You might be interested in

7 yd equals how many m

JulijaS [17]

The answer is 6.4008 meters or rounded is 6.4

6 0

3 years ago

Alan, Bobby and Chris are comparing their ages. The ratio of Alan's age to

SOVA2 [1]

Answer:

1638392772127273930337733930282823829393

3 0

3 years ago

Machine A can complete a certain job in x hours. Machine B can complete the same job in y hours. If A and B work together at the

scZoUnD [109]

Answer:

$\frac{y}{x+y}$

Step-by-step explanation:

The required answer is the rate at which Machine A works when the two machines are combined.

Note: the rate of doing work is express as

$rate=\frac{1}{time taken} \\$

Hence we can conclude that Machine A working rate is

$machine A=\frac{1}{x} \\$ and machine B working rate is

$machine B=\frac{1}{y} \\$

When the two machine works together, the effective working rate is

$\frac{1}{x}+\frac{1}{y}\\\frac{xy}{x+y}\\$

The fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A

Hence the fraction of work done by A is expressed as

$\frac{1}{x}*combine working rate$

$\frac{1}{x}*\frac{xy}{x+y}\\\frac{y}{x+y} \\$

Hence the fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A is $\frac{y}{x+y} \\$

6 0

3 years ago

Answer these 6 questions

Dmitry [639]

Answer:

$1)13x - 15 = 12x + 16 \\ 13x - 12x = 15 + 16 \\ x = 31$

$2)9x - 19 = 2x - 5 \\ 9x - 2x = 19 - 5 \\ 7x = 14 \\ \frac{7x}{7} = \frac{14}{7} \\ x = 2$

$3)16x - 35 = 7x - 8 \\ 16x - 7x = 35 - 8 \\ 9x = 27 \\ \frac{9x}{9} = \frac{27}{9} \\ x = 3$

$4)6x - 5 = 13 - 3x \\ 6x + 3x = 5 + 13 \\ 9x = 18 \\ \frac{9x}{9} = \frac{18}{9} \\ x = 2$

$5)4x - 9 = 6 - x \\ 4x + x = 9 + 6 \\ 5x = 15 \\ \frac{5x}{5} = \frac{15}{5} \\ x = 3$

$6)5x - 2 = 10 - x \\ 5x + x = 2 + 10 \\ 6x = 12 \\ \frac{6x}{6} = \frac{12}{6} \\ x = 2$

hope this helps

brainliest appreciated

good luck! have a nice day!

8 0

3 years ago

Read 2 more answers

Peyton is altering her new jacket to enter it into the Bodacious Bedazzling Contest. In order for a garment to be considered "be

horrorfan [7]

248 to 370 gems
set up two equations
132=(1/2)x+8 x=248
193=(1/2)x+8 x=370

5 0

3 years ago

Read 2 more answers