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4 years ago

Please help!!!!!! I will make you brainly!!!!!!!!!!!!

Mathematics

1 answer:

tester [92]4 years ago

8 0

Answer:

The last option

Step-by-step explanation:

Trust me, I know it is correct

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B=(2x+3)(4x^2-6x+9)-2(4^3-1)

nexus9112 [7]

B = (2x+3)(4x^2-6x+9)-2(4^3-1)
B = 8x^3-99

Hope it helps : )

5 0

2 years ago

39.96÷6 with explanation

solmaris [256]

Answer:

39.96/6=6.66

Do the long division

39/6=6 R3

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which of the following sets contain all roots of the polynomial

Zarrin [17]

All these given roots are contained in option C.

The given equation is :

$9x^{3}+9x^{2}-4x-4=0$

$9x^{2}(x+1)-4(x+1)=0$

$(9x^{2}-4)(x+1)=0$

$9x^{2}-4=0,x+1=0$

$x^{2}=\frac{4}{9},x=-1$

$x=\frac{2}{3},x=-1$

Roots = $-1,\frac{-2}{3} ,\frac{2}{3}$

Hence these lie in between $(\frac{-3}{2} ,\frac{3}{2})$

8 0

3 years ago

Georgia spent 150 minutes on her Maths homework last week.

vladimir2022 [97]

Answer:

last week = 150 minutes

this week = 162 minutes

changes = 162-150

= 12 minutes

percentage of changes = (12/150) × 100

= 8%

6 0

3 years ago

4 EZ GEOMETRY QUESTIONS FOR 20 POINTS!

MatroZZZ [7]

Answer:

1. use the formula

$(n-2)180$

$(20 - 2)180\\18 * 180 = 3240$

2. use the formula

$360/n\\360/12\\n = 30$

3. There is only one at 360 degrees

4. there are 6 rotational symmetries and the number of reflectional symmetries would be 6 as you can see:

6 0

3 years ago