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bekas [8.4K]
2 years ago
14

Evaluate the function f(-6) if f(x) = 3x+9

Mathematics
2 answers:
horsena [70]2 years ago
5 0

Answer:

f(-6) = -9

Step-by-step explanation:

here, you substitute -6 for x in the function

f(x) = 3x + 9

f(-6) = 3(-6) + 9

f(-6) = -18 + 9

f(-6) = -9

nirvana33 [79]2 years ago
4 0

Answer:

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Step-by-step explanation:

额哈哈哈哈哈哈哈叭叭叭那那那鸡尾酒

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5 raised by 2- 5 (68-60)= <br> (with explanation plz)
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Step-by-step explanation:

2-5(68-60)=2-5×8=2-40=38

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2 years ago
Distance formula: <br> Does the point (1, ) lie on the circle shown?<br> Explain.
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3 years ago
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Which of the following is a solution of x2 + 2x + 4?
ivolga24 [154]
Strictly speaking, x^2 + 2x + 4 doesn't have solutions; if you want solutions, you must equate <span>x^2 + 2x + 4 to zero:

</span>x^2 + 2x + 4= 0.  "Completing the square" seems to be the easiest way to go here:

rewrite   x^2 + 2x + 4  as   x^2 + 2x + 1^2 - 1^2 = -4, or
                                              (x+1)^2 = -3
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or                                            x = -1 plus or minus i*sqrt(3)

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3 0
3 years ago
Please help i will give you brainliest and every yhing
Lina20 [59]

first subtract the last equation from the first. this gives:-

-x + y = -8 .....................(1)

Then multiply the first equation by 2 and add it to the 2nd equations This gives

9x = 18  

so x = 2

and from equation  (1)  y = -8 + 2 = -6

Substituting for x and y in the second equation

z =  (24 -5(2) -12) / 2 =   1


Answer is choice b.

7 0
2 years ago
Tod begins piano practice at 4:15 p.M. And ends at 5:50 p.M. How long does he practice
nikdorinn [45]

Answer:

95 minutes/1 hour and 35 minutes.

Step-by-step explanation:

Since there are 60 minutes in a hour you could convert it. Or you could just subtract 550 minutes by 415 minutes and get 95 minutes which is also 1 hour and 35 minutes.

Hope this helps

:)

5 0
3 years ago
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