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3 years ago

What is the value of x in the equation (5x+3)?

Mathematics

1 answer:

tatyana61 [14]3 years ago

6 0

Answer: The value of x is 2

Step-by-step explanation:

I just subtracted from both sides and you get 2 and another way to say this is 5-3 and 3-3

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What is the distance between (1,-2) and (6,10)

Bad White [126]

Answer:

5 left, (5,_) and 12 up. (5,12)

Step-by-step explanation:

5 0

3 years ago

X^2+2x+1 is a perfect square trinomial <br><br> True of False?

Nimfa-mama [501]

Answer:

True.

Step-by-step explanation:

It is because it is in the form $a^2x^2+2abx+b^2$ and this equals $(ax+b)^2$ .

Why it is in that form: well comparing $a^2x^2+2abx+b^2$ , we have $a=1, b=1$ . Testing, plug in those values:

$(1)^2x^2+2(1)(1)x+(1)^2$

$1x^2+2x+1$

$x^2+2x+1$ .

This has the squared form of $(x+1)^2$ .

Test if you like:

$(x+1)^2$

$(x+1)(x+1)$

Use foil to expand:

First: x(x)=x^2

Outer: x(1)=x

Inner: 1(x)=x

Last: 1(1)=1

---------------Add together

$x^2+2x+1$

It does indeed equal.

4 0

3 years ago

Toni is 30 inches less than twice Jordan's height. Toni is 66 inches tall. How tall is Jordan?

Ahat [919]

Answer:

96 inches

Step-by-step explanation:

66 + 30 = 96

5 0

2 years ago

A curve is describe by the following parametric equations:

soldi70 [24.7K]

Answer:

A. The curve is a parabola with a vertex at (3,-4) and is traced from left to right for increasing values of t.

Step-by-step explanation:

x = 3 + t

y = t² − 4

Eliminating the parameter:

t = x − 3

y = (x − 3)² − 4

This is an upwards parabola with a vertex at (3, -4).

x = 3 + t, so as t increases, x increases.

So the curve is traced from left to right.

7 0

3 years ago

Ive been at this for abt 30 min. help?

gregori [183]

Answer:

$1+\frac{-63}{x^2-1}$

Step-by-step explanation:

If you foil this equation you will get:

$\frac{(x+8)(x-8)}{(x+1)(x-1)}$

And by dividing it, you will get;

$1+\frac{-63}{x^2-1}$

That is your answer!

6 0

3 years ago