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2 years ago

12

Find a polynomial function of degree 3 with -2, 3, 5 as zeros

1 answer:

Lorico [155]2 years ago

8 0

So theyre trying to scare you in this question by giving you the zeros to an already existing function. Basically if x = 1, than the reverse function of this is (x-1)
using that, we can say that the zero or "root" "-2" is equal to (x+2)same with 3, we can say (x-3)= x = 3 and with five, (x-5)= x = 5
so, we have those functions, we can multiply them to eachother to work backwards.(x+2)(x-3)(x-5) =(x^2-x-9)(x-5) =x^3 - 6x^2 - 4x + 45
please ask if you have questions

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Solve for c:<br><br><br><br> c + (-20) = -12

alexira [117]

Answer:

8

Step-by-step explanation:

Isolate and solve for C

$c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8$

6 0

2 years ago

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For each pair of points below, think about the line that joins them. For which pairs is the line parallel to the y-axis? Circle

gogolik [260]

Answer:

Option B.

Step-by-step explanation:

If two lines are parallel then their slopes are always same.

Following this rule we can find the slope by the given pairs of coordinates of the options.

If the slope of the line is same as the slope of y axis then the line passing through these points will be parallel to the y axis.

Slope of y - axis = ∞

Option A). Slope = $\frac{y-y'}{x-x'}$

= $\frac{24-8.5}{3.22-3.2}$

= $\frac{15.5}{0.02}$

= 775

Therefore, line passing through points (3.2, 8.5) and (3.22, 24) is not parallel to y axis.

Option B). Slope of the line passing through $(\frac{40}{3},\frac{14}{3})$ and $(\frac{40}{3},7)$ will be

= $\frac{\frac{14}{3}-7}{\frac{40}{3}-\frac{40}{3}}$

= ∞

Therefore, line passing though these points is parallel to the y axis.

Option C). Slope of the line passing through $(2.9,5.4)$ and (7.2, 5.4)

= $\frac{5.4-5.4}{7.2-2.9}$

= 0

Therefore, slope of this line is not equal to the slope of y axis.

Option B. is the answer.

5 0

3 years ago

11) The sum of four consecutive integers is 290.

n200080 [17]

Answer:

71, 72, 73, 74 . for details, check below

Step-by-step explanation:

a) Let's assume that among the four consecutive numbers, the first one is x,

so, the four consecutive numbers should be:

x
x+1
x+2
x+3.

According to the question,

(x) + (x + 1) + (x + 2) + (x + 3) = 290

<h2>b)</h2>

(x) + (x + 1) + (x + 2) + (x + 3) = 290

4x + 6 = 290

4x = 284

x = 284÷ 4

x = 71.

So, the numbers are,

71, 72, 73, 74

6 0

2 years ago

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If h(x)=x-9, find h(13)

Helen [10]

If you plug in h, the answer would be 13-9 which is 4.

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2 years ago

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Round 564,938 to the nearest 1000 is it 565000

lord [1]

Answer:

YES!

Step-by-step explanation:

564,938 -> 565,000

BRAINLIEST?

4 0

2 years ago