When evaluating (6x+3)2 -5 for x= 1, the given value of 1 is substituted for what part of the expression?

Mathematics

1 answer:

aev [14]4 years ago

6 0

Answer:

variable

Step-by-step explanation:

the variable

(6× + 3) means (6×1 + 3)

x is a variable

You might be interested in

a person Can travel 120 miles in one direction. the return trip was accomplished at double the speed and took three hours less t

BaLLatris [955]

40 mph would be 120 miles in 3 hours (120/40)

80 mph is 120 miles in 1.5 hours(120/80)

3 - 1.5 = 1.5, not 3 hrs

Change the speed to 20 mph( 1/2 the speed) to double the hours.

20 mph = 6 hours(120/20)

40 mph = 3 hrs(120/40)

6 - 3 = 3 hours difference

6 0

3 years ago

If you divided the length of AQ by the length of WQ, what is the solution?

slamgirl [31]

The length of AQ is 4, the length of WQ is 12, 4 divided by 12 can be simplified as 1 divided by 3 so the answer is A. 1/3

6 0

4 years ago

Read 2 more answers

A student solved a quadratic equation as shown here:

djverab [1.8K]

Answer:

x = 3/2 or x = -4

Step-by-step explanation:

The identifiable error the students have is that before the left hand side of the equation is factorized, the right hand side value of 12 ought to be brought to the left hand side, leaving a net value of zero on the right hand side. Then whatever is factored on the left hand side is then equated to zero and then we can find the two values of x after setting each of the individual factors to zero

We proceed as follows;

$2x^{2} + 5x = 12\\2x^{2} + 5x - 12 = 0\\2x^{2} + 8x -3x -12 = 0\\2x(x+4) -3(x+4) = 0\\(2x-3)(x+4) = 0\\2x-3 = 0 or x+4 =0\\2x=3 or x=-4\\x = 3/2 or x= -4\\x = 1.5 or- 4$