All categories

2 years ago

Factor the quadratic expression 3x^2 + 4x - 4*

Mathematics

2 answers:

Zepler [3.9K]2 years ago

7 0

Answer:(x+2)(3x-2)

Step-by-step explanation:

3x^2 +4x-4

AC method

_×_= ac=-12

_+_=b = 4

6 and -2

But because a is multiplied by 3 you need to divide both by 3 so 6/3 is 2 and because you can not divide -2 by three you move the 3 back to the x and leave it as (3x-2)

Igoryamba2 years ago

5 0

Answer:

(3−2)(+2)

Step-by-step explanation:

You might be interested in

Help please!!

balu736 [363]

12 pieces in total so (168/2):12=7
the width is either 7, either 7*11=77

3 0

3 years ago

Read 2 more answers

What is the surface area? 5 mm 4 mm 5 mm 6 mm 7 mm square millimeters

postnew [5]

Answer:

136 square millimeters

Step-by-step explanation:

4 0

2 years ago

Uca is designing a propeller system that consists of 3 blades, each of which is

zmey [24]

Answer:

The weight of the three blades together is $134\ g$

Step-by-step explanation:

step 1

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=4\ in$

assume

$\pi=3.14$

substitute

$A=(3.14)(4)^{2}$

$A=50.24\ in^{2}$

step 2

Find the area of the 3 blades

we know that

The area of the 3 blades represent a central angle of 60 degrees, so

its a 1/6 of the area of complete circle

$A=50.24/6=8.37\ in^{2}$

step 3

Find the weight of the three blades together to the nearest gram

$(8.37\ in^{2})*(16\ g/in^{2})=134\ g$

4 0

3 years ago

Pls answer fast A 4-column table with 4 rows. Column 1 is labeled Principal (dollars) with entries 3,300, 3,300, 3,300, 3,300. C

Mamont248 [21]

Answer:

a=148.50

b=0.045

c=8

Step-by-step explanation:

i just took the quiz on edgeunity

6 0

3 years ago

Read 2 more answers

Which decimal is between 0.6 and 0.7

kondor19780726 [428]

Answer:

You can recognize that .25 is 1/4, so 0.625 is 1/4 of the way

from 0.6 to 0.7

4 0

2 years ago

Read 2 more answers