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4 years ago

Can you factor the polynomial x^4-3x^3-27x-81

Mathematics

1 answer:

trasher [3.6K]4 years ago

4 0

Here is the factored polynomial
(x^2+9)(x^2-3x-9)=0

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What equals tan(x+y)? When sinx=1/2, cosy=sqrt2/2

Oksi-84 [34.3K]

Answer:

I believe it is 1 hope this helps

Step-by-step explanation:

8 0

3 years ago

#A crane is lowering a concrete block from a height of 240 feet above the ground at a constant rate of 4.8 feet per second.

Anna007 [38]

Answer:

Step-by-step explanation:

7 0

3 years ago

Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8. Identify any error in his work or reasoning. Step 1: (6.2 − 1.6

Eduardwww [97]

Formatting first:

Step 1: (6.2 − 1.6) − 4.4 + 7.8

Step 2: 6.2 + (− 1.6 − 4.4) + 7.8 (commutative property)

Step 3: 6.2 − 6 + 7.8

Step 4: −14 − 6 = 8 (commutative property)

Step 5: 14 − 6 = 8

Step 2 is the associative property (a+b)+c=a+(b+c)

Step 4 is just wrong with -14 instead of 14; seems corrected in step 5.

Answer: He wrote commutative instead of associative in Step 2.

3 0

3 years ago

Given: -6x < 36. Choose the solution set.

Mazyrski [523]

The answer is X>-6 I think that’s the answer

6 0

3 years ago

write the slope intercept equation. the graph of f passes through (-6,4) and is perpendicular to the line that has an x-intercep

Nimfa-mama [501]

Answer:

y = $-\frac{1}{3} x$ + 2

Step-by-step explanation:

The slope of the line that has an x intercept of (2,0) and y-intercept of (0,-6) is:

Slope(s) = Change in y ÷ change in x

s = $\frac{0 - -6}{2 - 0}$ = 3

The slope of the perpendicular line to this line with slope of 3 has to have a slope of -1 ÷ 3 = $-\frac{1}{3}$

Reason: The product of slopes of lines perpendicular to each other have to be -1

So the slope of the perpendicular line that passes through (-6,4) is $-\frac{1}{3}$

As mentioned earlier, we derive a slope of a line by dividing the change in y by the change in x

Taking another point (x,y) on the line,

$-\frac{1}{3}$ = $\frac{y - 4}{x - -6}$

$-\frac{1}{3}$ = $\frac{y - 4}{x + 6}$

y - 4 = $-\frac{1}{3}$ x - 2

y = $-\frac{1}{3}$ x + 2

5 0

3 years ago