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Irina18 [472]
3 years ago
12

Can someone answer this please 15 points

Mathematics
1 answer:
andrew-mc [135]3 years ago
7 0
16x³ - 54
= 2(8x³ - 27)
= 2(2x - 3)(4x² + 6x + 9)  ← answer
You might be interested in
Factorize fully 12x^3-4x^2
serg [7]

Answer:

4x² (3x - 1)

Step-by-step explanation:

→ Find the LCM of 12 and 4

LCM = 4

→ Find the LCM of x³ and x²

LCM = x²

→ Combine both LCM's together to form the outside multiplier

4x² (? - ?)

→ Complete the operations of 12x³ ÷ 4x² to find the first ? and 4x² ÷ 4x² to find the second ?

12x³ ÷ 4x² = 3x

4x² ÷ 4x² = 1

→ Therefore,

∴ 4x² (3x - 1)

4 0
3 years ago
the depth D, in inches, od wsnow in my yard t hours after it started snowing this morning is given by D=1.5t + 4. if the depth o
Blababa [14]

Answer:

8.5 inches

Step-by-step explanation:

First let's find the time t when the depth of the snow is 7 inches.

To do this, we just need to use the value of D = 7 then find the value of t:

7 = 1.5t + 4

1.5t = 3

t = 2\ hours

We want to find the depth of snow one hour from now, so we just need to use the value of t = 3 to calculate D:

D = 1.5*3 + 4

D = 4.5 + 4 = 8.5\ inches

The depth of snow one hour from now will be 8.5 inches.

7 0
3 years ago
NEED HELP ASAP!!
Ksju [112]

Answer:

i) 2x² + 4x + 7x + 14

= 2x² + 11x + 14

ii) 2x² - 5x - 12x + 30

= 2x² - 17x + 30

7 0
3 years ago
Factor the expression using the GCF 2r - 10
vovangra [49]

Answer:2(r-5)

Step-by-step explanation: divide 2 on both sides which gives you  5 and then you write 2(r-5).

Hope it helps :)

5 0
3 years ago
I WILL AWARD BRAINLIEST!
gavmur [86]

Answer:

A. 70

Step-by-step explanation:

You can use the transversals and use vertical angles are congruent.

7 0
4 years ago
Read 2 more answers
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