All categories

3 years ago

Use a geometric model to factor x2 - 9 by following these steps:

Mathematics

1 answer:

Finger [1]3 years ago

4 0

Answer:(x-3) (x+3)

Step-by-step explanation:

You might be interested in

Find the slope of the line through each pair of points

NNADVOKAT [17]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

95)

$(-13,\ -10)\to x_1=-13,\ y_1=-10\\(16,\ 16)\to x_2=16,\ y_2=16$

substitute:

$m=\dfrac{16-(-10)}{16-(-13)}=\dfrac{16+10}{16+13}=\dfrac{26}{29}$

96)

$(6,\ -16)\to x_1=6,\ y_1=-16\\(-15,\ 9)\to x_2=-15,\ y_2=9$

substitute:

$m=\dfrac{9-(-16)}{-15-6}=\dfrac{25}{-21}=-\dfrac{25}{21}$

97)

$(12,\ -11)\to x_1=12,\ y_1=-11\\(14,\ -12)\to x_2=14,\ y_2=-12$

substitute:

$m=\dfrac{-12-(-11)}{14-12}=\dfrac{-12+11}{2}=-\dfrac{1}{2}$

OK. I think you already know how to solve it. I will give short solutions now.

98)

$m=\dfrac{15-(-3)}{8-(-14)}=\dfrac{18}{22}=\dfrac{9}{11}$

99)

$m=\dfrac{3-(-5)}{-7-3}=\dfrac{8}{-10}=-\dfrac{4}{5}$

100)

$m=\dfrac{-8-8}{-11-0}=\dfrac{-16}{-11}=\dfrac{16}{11}$

101)

$m=\dfrac{13-(-5)}{-13-(-13)}=\dfrac{18}{0}!!!-\boxed{NOT\ EXIST}$

102)

$m=\dfrac{18-1}{-10-2}=\dfrac{17}{-12}=-\dfrac{17}{12}$

103)

$m=\dfrac{19-14}{7-(-17)}=\dfrac{5}{24}$

104)

$m=\dfrac{12-0}{-6-4}=\dfrac{12}{-10}=-\dfrac{6}{5}$

5 0

3 years ago

I need help can I have how to do it and some work so I can do it.

Rufina [12.5K]

Answer:

cant see it post another

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

In a capacitor, the amount of dielectric stress is proportional to the _____.

riadik2000 [5.3K]

Answer

capacitance of capacitor.

<u>Explanation</u>

Dielectrics are non-conducting materials or insulators or bad conducting materials.Examples for dielectrics are glass, mica,Plastics etc.Dielectrics are placed inside two parallel plate capacitors. If larger the value of dielectric constant more charge can be stored.The electric field between two parallel plate capacitor is proportional to the capacitance of the capacitor.By the presence of dielectric the electric field strength reduced, so more charge can be stored.

8 0

4 years ago

(05.02)The area of the parallelogram below is ____ square meters.

fredd [130]

Its not the best drawing but it should help. Then from there you are going to want to do:
A=b×h
A=6×7
A=42m²