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ArbitrLikvidat [17]
3 years ago
7

Please help me with both of these.

Mathematics
1 answer:
Andru [333]3 years ago
3 0
All i know is that the first one is an integer i think.
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Use polynomial division to completely factor y=x^3+3x^2-13x-15 by x+5
Salsk061 [2.6K]

Answer:

(x - 3)(x + 1)(x + 5)

Step-by-step explanation:

I'd use synthetic division instead.  If we were to find the roots of the given polynomial, we could from them write the factors as well.

The divisor x + 5 corresponds to root x = -5.  Setting up synthetic div.,

-5   )   1    3    -13    -15

               -5     10    +15

      -----------------------------

           1   -2     -3      0

Since the remainder is 0, we know that -5 is a root and (x + 5) is a factor.  Moreover, we know that the coefficients of the quotient are 1, -2 and -3.

1x² - 2x - 3 can be factored:  the factors are (x - 3) and (x + 1).

So the end result for this problem is (x - 3)(x + 1)(x + 5).

7 0
3 years ago
What is the best estament of 12762
NeX [460]

Answer:

13000

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is 3gh 2 x 4g 3h 3
Alexus [3.1K]

Answer:

(3•22g4h5)

Step-by-step explanation:

Step 1:  ((3gh2 • 4) • g3) • h3

Step 2:   ((3•22gh2) • g3) • h3

Step 3:   3.1 h2 multiplied by h3 = h(2 + 3) = h5

Final answer:   (3•22g4h5)

(IF THIS HELPED PLEASE GIVE BRAINLIEST OR RATE IT 5 STARS!)

5 0
3 years ago
Graph the following lines and write the equation in slope-intercept form. With y intercept of −3 and an x intercept of −4.5.
makvit [3.9K]

Answer:

y=-\frac{2}{3}x-3

Step-by-step explanation:

To write the equation of a line we need 2 points. We know:

  • If the y-intercept of the line is -3 then the point is (0,-3).
  • If the x-intercept of the line is -4.5 then the point is (-4.5,0).

Using these two point, we will find the slope and then substitute it into the point slope form y-y_1=m(x-x_1) with a point.

Slope: m=\frac{0--3}{-4.5-0}=\frac{0+3}{-4.5}=\frac{3}{-4.5}=-0.6667

This decimal is -2/3. We will now substitute -2/3 and (0,-3) into the point slope form.

y--3=-\frac{2}{3}(x-0)\\y+3=-\frac{2}{3}(x)\\y+3=-\frac{2}{3}x\\y=-\frac{2}{3}x-3


6 0
3 years ago
Newton Street and Oakland Avenue intersect. If the diagonal distance across the intersection is 17 meters and Newton Street is 1
Margarita [4]
The Oakland Avenue is approximately what the time you think is it now though you have 120 days to
8 0
2 years ago
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