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dalvyx [7]
3 years ago
6

What are the zeros of the polynomial function?f(x)=x2+9x+20enter your answers in the boxes.the zeros of f(x) are?

Mathematics
1 answer:
bija089 [108]3 years ago
3 0
<span>x2 + 9x + 20
Factor the equation
(x+5) * (x+4)
x = -5
x = -4


</span>
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Please help me with this
Free_Kalibri [48]

Answer:

See photo

Step-by-step explanation:

We can fill out many of these pretty easily. Look at the picture below. (Black numbers represent what information they already gave us)

Now, for the actual math.

If a total of 46 seventh-graders were surveyed and 28 seventh-graders spent more than an hour on their phone, then that means that there would have to be 46-28=18 students that spend less than an hour on their phone.

If there are 43 total students that spend more than an hour on their phone, and 28 of those are seventh-graders, then there are 43-28=15 eighth-graders that spend more than an hour on their phone

Then, if there are 27 total eighth-graders, and 15 of those spend more than an hour, then that leaves 27-15=12 eighth-graders that spend less than an hour on their phone.

Lastly, figure out the total numbers.

There are 18 seventh-graders and 12 eighth-graders that spend less than an hour on their phone, so there is a total of 18+12 = 30 students that spend less than an hour on their phone.

There are a total of 46 seventh-graders and 27 eighth-graders that were surveyed, which is a total of 73 students surveyed.

6 0
2 years ago
What is y/6 - 3 = -11
nadya68 [22]

Answer:

y=-48

Step-by-step explanation:

y/6-3=-11

y/6=-8

multiply 6/1 on each side

y=-48

7 0
3 years ago
(x³ + 5x² - 9x - 13) ÷ (x + 6)
almond37 [142]

Answer:

x^2-x-3+\frac{5}{x+6}

Step-by-step explanation:

\frac{x^3+5x^2-9x-13}{x+6} \\ \\ =\frac{x^2(x+6)-x^2-9x-13}{x+6} \\ \\ =\frac{x^2(x+6)-x(x+6)-3x-13}{x+6} \\ \\ =\frac{x^2(x+6)-x(x+6)-3(x+6)+5}{x+6} \\ \\ =x^2-x-3+\frac{5}{x+6}

5 0
1 year ago
Read 2 more answers
I have a couple of questions I need help with.
borishaifa [10]

Answer:

b

Step-by-step explanation:

b is correct i think

2

7 0
1 year ago
What is the equation of the line that contains the points (3, –6) and (–3, 0)?
SSSSS [86.1K]

 

<span>Hello : let  A(3,-6)    B(-3,0)
the slope is :   (YB - YA)/(XB -XA)
(0+6)/(-3-3)  = -1
an equation is : y=ax+b     a is a slope</span>

y = -x +b

 

the line through point  (-3,0) :  0 =-(-3)+b<span>
<span>b = -3 
the equation is : y =-x-3</span></span>

3 0
3 years ago
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