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Tresset [83]
3 years ago
14

Solve x2-x-5/2 = 0 using the quadratic formula. the answer choices are in the picture

Mathematics
1 answer:
allsm [11]3 years ago
7 0

Answer:

Exact Form:  x =( 1 ± √ 11) /2

It's the first one.

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

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Given f(x) = x^3 + kx + 2, and x + 1 is a factor of f(x), then what is the value of <br> k?
Aleks [24]

Answer:

k = 1

Step-by-step explanation:

Given that,

f(x) = x^3 +kx + 2

If (x+1) is a factor of (x), we need to find the value of k.

Using remainder theorem to find it.

Put (x+1) = 0

x = -1

Put x = -1 in equation below.

x^3 + kx + 2=0\\\\(-1)^3+k(-1)+2=0\\\\-1-k+2=0\\\\1-k=0\\\\k=1

So, the value of k is 1.

4 0
3 years ago
Compare taking a cube root to taking a square root
blsea [12.9K]

The cube root of a number is the number which when multiplied by itself three times give you the original number. ... The square root of a number is the number which when multiplied by itself twice give you the original number. As an example, the square root of 9 is 3 because 3×3 = 9

5 0
4 years ago
What is the rate of change of this function?
Fittoniya [83]

Answer:

21/4

Step-by-step explanation:

Rate of change also means slope.

Pick any two points, for example (8,167) and (12, 188)

Now use the formula y2-y1/x2 - x1 to find slope

188 - 167/ 12 - 8

21/4

The rate of change is 21/4, <em>note you would NOT convert the fraction into to a decimal until your teacher specifies you to.</em>

6 0
4 years ago
Read 2 more answers
How do i find f(-1)?
jonny [76]
F(-1) is the inverses of an equation so plug in y for x.
4 0
3 years ago
Whats the slope of y= 1 over 2x-2
Elodia [21]
Use Cymath to find your answer
5 0
3 years ago
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