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BaLLatris [955]
3 years ago
14

what number should be added to the expression x squared+2x to change it into a perfect square trinomial?

Mathematics
2 answers:
Olin [163]3 years ago
7 0
The perfect square trinomial​ (x + 1)² equals
x² + 2x + 1

Therefore the answer is to add 1 to the expression.

Good luck
Nookie1986 [14]3 years ago
3 0
You know that a perfect square trinomial is given by square of first term, twice the product of first and last terms and square of second term

So we have x^2 that is square of x, 2x that is twice the product of x*1, the second term shoulf be 1, that is square of 1

So your answer would be 1

If you try (x+1)^2 = x^2+2x+1
You might be interested in
Explain how to evaluate f(g(0)).
alekssr [168]

Answer as a fraction:  17/6

Answer in decimal form: 2.8333  (approximate)

==================================================

Work Shown:

Let's use the two black points to determine the equation of the red f(x) line.

Use the slope formula to get...

m = slope

m = (y2-y1)/(x2-x1)

m = (4-0.5)/(2-(-1))

m = (4-0.5)/(2+1)

m = 3.5/3

m = 35/30

m = (5*7)/(5*6)

m = 7/6

Now use the point slope form

y - y1 = m(x - x1)

y - 0.5 = (7/6)(x - (-1))

y - 0.5 = (7/6)(x + 1)

y - 0.5 = (7/6)x + 7/6

y = (7/6)x + 7/6 + 0.5

y = (7/6)x + 7/6 + 1/2

y = (7/6)x + 7/6 + 3/6

y = (7/6)x + 10/6

y = (7/6)x + 5/3

So,

f(x) = (7/6)x + 5/3

We'll use this later.

---------------------

We ultimately want to compute f(g(0))

Let's find g(0) first.

g(0) = 1 since the point (0,1) is on the g(x) graph

We then go from f(g(0)) to f(1). We replace g(0) with 1 since they are the same value.

We now use the f(x) function we computed earlier

f(x) = (7/6)x + 5/3

f(1) = (7/6)(1) + 5/3

f(1) = 7/6 + 5/3

f(1) = 7/6 + 10/6

f(1) = 17/6

f(1) = 2.8333 (approximate)

This ultimately means,

f(g(0)) = 17/6 as a fraction

f(g(0)) = 2.8333 as a decimal approximation

8 0
3 years ago
Need help fast! with both questions
Eduardwww [97]

Answer:

first one is 41 i think and the second is 30 for sure

Step-by-step explanation:

6 0
3 years ago
How to tell whether lines are parallel perpendicular or neither?
julsineya [31]
The way they are turned
6 0
3 years ago
Determine whether the statement is true or false. You toss a coin and roll a die. The event​ "tossing tails and rolling a 4 or 6
USPshnik [31]

Answer: False.

Step-by-step explanation:

The probability for any event = \dfrac{\text{favorable outcomes}}{\text{Total outcomes}}

Definition : A simple event is an event that has only one possible favorable outcomes.

If we toss a coin and roll a die .

The possible outcomes for event​ "tossing tails and rolling a 4 or 6​" = {(T, 4) , (T,6)}

Since this event has 2 possible favorable  outcomes , Therefore it is not an simple event.

Hence, the given statement is "false".

7 0
3 years ago
Please help asap 25 points
Sever21 [200]

it is greater because it is above the line

it is not equal to because the line is dotted

the y intercept is 2

y >mx+2

Choice C

8 0
3 years ago
Read 2 more answers
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