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OlgaM077 [116]
3 years ago
8

If f(x)=x^2and g(x)=6x+4,for which value of x does (f+g) =0

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0

Step-by-step explanation:

When (f + g)(x) = 0,

f(x) + g(x) = x² + 6x + 4 = 0.

Therefore (x + 3)² - 5 = 0, we have

x = sqrt5 - 3 or x = -sqrt5 - 3.

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Rudiy27
It is c 97 cause it has the most of the same number
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Fir trees : Yew trees is 3:4. There<br> are 18 fir trees, how many yew?
liubo4ka [24]

Answer:  24

Step-by-step explanation: 18/3 =6 6x4=24

5 0
3 years ago
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A town has a population of 4000 and grows at 3.5% every year. To the nearest year, how long will it be until the population will
Romashka [77]

18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

Step-by-step explanation:

The given is,

             Population of 4000

             Rate of grow 3.5% every year

             Population after few years 7500

Step:1

            Formula to calculate the population with the grow rate every year,

                                   F=P(1+r)^{t}..........................(1)

           Where,

                    F - Population after t years

                   P - Initial population

                    r - Rate of grow

                    t - No.of years

          From given,

                  F = 7500

                  P = 4000

                   r = 3.5%

        Equation becomes (1),

                    7500=4000(1+0.035)^{t}

                     \frac{7500}{4000} = (1+0.035)^{t}

                   1.875 = (1+0.035)^{t}

                   1.875 = (1.035)^{t}

       Take log on both sides,

              log 1.875 = (t)log 1.035

       Substitute log values,

                 0.2730= (t) 0.014940349

                          t = \frac{0.273}{0.014940349}

                             = 18.273

                          t = 18.273 year

                             or

                         t = 18 years 3 months 2 weeks

Result:

          18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

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Find the approximate area of a circle with a diameter of 100 cm use 3.14 for pi
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Answer:

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3.14r^2

3.14(50)^2

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You need to revise your budget to meet your short-term goal of buying a new computer. You will need to budget $50 a month.
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