10x^3 - 6x^2 + 50x - 30

Mathematics

2 answers:

Arlecino [84]3 years ago

3 0

Answer:

Step-by-step explanation:

nadezda [96]3 years ago

3 0

Answer:

Factored :

2 (5x-3)(x^2+5)

Roots :

$x=\frac{3}{5} , i\sqrt{5} , -i\sqrt{5} \\$

Step-by-step explanation:

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Which equation is equivalent to x + 8 = 21? (x + 8) × 4 = 21 (x + 8) × 4 = 21 ÷ 4 (x + 8) × 4 = 21 × 2 (x + 8) × 4 = 21 × 4

Drupady [299]

Answer:

(x + 8) × 4 = 21 × 4

Explanation:

x + 8 = 21

21 - 8 = 13

(13 + 8) × 4 = 21 × 4

21 × 4 = 21 × 4

84 = 21 × 4

84 = 84

7 0

3 years ago

Let line A be the graph of 5x + 8y = -9. Line B is perpendicular to line A and passes through the point (10,10). If line B is th

frozen [14]

Find slope of line A:
Move into slope-intercept form y = mx+b

5x + 8y = -9
8y = -5x - 9
y = (-5/8)x - 9/8

The slope of line A is -5/8.

If Line B is perpendicular to line A, then

slope Line B = negative reciprocal of slope Line A
slope Line B = 8/5

So like B has the equation

y = (8/5)x + b

If it passes through (10,10), we know that when x = 10, y = 10. Use those values to solve for b:

y = (8/5)x + b
10 = (8/5)·10 + b
10 = (8)·2 + b
10 = 16 + b
b = -6

So line B has equation 
y = (8/5)x - 6

m = 8/5 and b = -6

so

m + b = 8/5 - 6 = 8/5 - 30/5 = -22/5

So m+b = -22/5 or -4.4 in decimal form

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3 years ago

What are two other negative integers that have the same sum as -2 and -5

Anestetic [448]

Answer:

-3,-4

-6,-1

Step-by-step explanation:

-3 + -4

-6 + -1

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3 years ago