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anzhelika [568]
3 years ago
8

Add. 3x^2 -5x +1 + 2x^2 +9x -6

Mathematics
1 answer:
g100num [7]3 years ago
4 0

Answer:

=5x^2+4x−5

Step-by-step explanation:

Let's simplify step-by-step.

3x2−5x+1+2x2+9x−6

=3x2+−5x+1+2x2+9x+−6

Combine Like Terms:

=3x2+−5x+1+2x2+9x+−6

=(3x2+2x2)+(−5x+9x)+(1+−6)

=5x2+4x+−5

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A line passes through the point (-8, 6) and has a slope of 3/2
Vladimir79 [104]

Answer:

y-6=3/2(x+8)

Step-by-step explanation:

so the point slope form is  y-y₁=m(x-x₁)

so enter the points (-8, 6)

y-6= 3/2(x-(-8))

y-6=3/2(x+8)

3 0
3 years ago
Read 2 more answers
-5•3 = 3 • -5<br><br> Name the property that justifies the statement
algol13

Answer:

commutative property of multiplication

Step-by-step explanation:

3 0
3 years ago
Is -6.743743… a rational or irrational number?
yaroslaw [1]

It's rational because it contains a repeating digit pattern, 743 (first option).

In particular, if

<em>x</em> = -6.743743…,

then

1000<em>x</em> = -6,743.743743… .

Subtracting, we can eliminate the trailing end and solve for <em>x</em> exactly:

1000<em>x</em> - <em>x</em> = -6,743.743743… - (-6.743743…)

999<em>x</em> = -6,737

<em>x</em> = -6,737/999

8 0
3 years ago
9-3÷1/3+1 <br> can you pleas solve this question <br> please hurry
Alex787 [66]

Answer:

9

Step-by-step explanation:

pemdas

9-3÷1/3+1

division

3 and 1/3 becomes 1

we have 9-1+1

which simplifies to 9

4 0
3 years ago
Can y’all please help me
Furkat [3]

Answer:

1st blank: 160(2) - 16(2)²

2nd blank: 256

3rd blank: 5

4th blank: 400

5th blank: 10

Step-by-step explanation:

h(x) = -16x² + 160x

To find h(2) just replace x = 2 into the equation

h(2) = 160(2) - 16(2)² = 256 in

The maximum height coincides with the vertex of the parabola.

x-coordinate of the vertex: -b/(2a) = -160/[2*(-16)] = 5

y-coordinate of the vertex: -16(5)² + 160(5) = 400

To hit the ground means h(x) = 0

-16x² + 160x = 0

16x(-x + 10) = 0

x = 0

or

-x + 10 = 0

x = 10

6 0
3 years ago
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