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g100num [7]
3 years ago
15

How do I do question 14?

Mathematics
2 answers:
cupoosta [38]3 years ago
4 0
U factorize number 14
alukav5142 [94]3 years ago
3 0

Answer: \\ f(x) = k {x}^{3}  - 8 {x}^{2} - x + 3k + 1 \\  \Rightarrow f(2) = k {2}^{3}  - 8 {2}^{2}  - 2 + 3k + 1 = 0 \\ \Leftrightarrow 8k - 32 - 2 + 3k + 1 = 0 \\ \Leftrightarrow 11k - 33 = 0 \\ \Leftrightarrow 11k = 33\Leftrightarrow k = 3 \\ \Rightarrow f(x) = 3 {x}^{3}  - 8 {x}^{2}  - x + 10 \\ Factored form:f(x) = (x + 1)(x - 2)(3x - 5) \\ Zeros: - 1,2, \frac{5}{3}

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Classify each function as even, odd, or neither even nor odd.
drek231 [11]

The function

f(x) is even

g(x) is neither even nor odd

h(x) is odd

Steps:

for an even function it holds that f(-x) = f(x):

f(-x) = (-1)^6 x^6  - (-1)^4 x^ 4 = x^6 - x^4 = f(x) => f is even

for an odd h(x) it holds that h(-x) = -h(x):

h(-x) = (-1)^5x^5-(-1)^3x^3 = -(x^5-x^3) = -h(x) \implies h(x)\,\, \mbox{even}

It is easy to show that g(x) does not match any of the two possibilities above.


8 0
3 years ago
Read 2 more answers
Pleaseee help with 22 & 23 !! ASAP !!
Blizzard [7]

#22. We are given that y = 1/4. So, we want to plug this value into the expression 15/y:

15/(1/4)

When you divide by a fraction, you should follow the rule “flip the guy and multiply”. Basically, 15/(1/4) = 15 * 4 = 60.

The answer for #22 is (D).

#23. We can use a proportion:

(The shaded area)/(entire circle area) = (360 - 60)/360

But, we don’t have to find the areas of the region and circle; we can just solve the fraction:

(360 - 60)/360 = 300/360 = 30/36 = 5/6

The answer for #23 is (A).

5 0
3 years ago
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The results of a two-factor research study are organized in a matrix with the two levels of factor A for the rows and the three
Ainat [17]

Answer:

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3 0
3 years ago
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Alexandra [31]
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