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3 years ago

Multiply the polynomial (12x^4 - 4x^3 + 5) by (-4x^2) *

Mathematics

1 answer:

murzikaleks [220]3 years ago

7 0

Answer:

 $- 48 {x}^{6} + 16 {x}^{5} - 20 {x}^{2}$ 

Option D is the correct option.

Solution,

 $- 4 {x}^{2} (12 {x}^{4} - 4 {x}^{3} + 5) \\ = - 4 {x}^{2} \times 12 {x}^{4} + 4 {x}^{2} \times 4 {x}^{3} - 4 {x}^{2} \times 5 \\ = - 48 {x}^{6} + 16 {x}^{5} - 20 {x}^{2}$ 

hope this helps...

Good luck on your assignment...

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Write a rule for a geometric sequence that has a 1 as its first term and a common ratio of -4. what is the seventh term of this

ivann1987 [24]

I hope first term is 1.

Hope this is your question, if not I think you will, still be able to

find an answer of your question based on this solution.

The formula for general term of a geometric sequence is,

$a_{n} =a_{1} *r^{n-1}$

Where, first term: a_{1} =1 and common ratio: r = -4.

So, first step is to plug in the values of a1 and r in the above formula to get the rule of this geometric sequence. Hence,

$a_{n} =1 *4^{n-1}$

$a_{n} =4^{n-1}$

So, the rule of the geometric sequence is $a_{n} =4^{n-1}$ .

To find the seventh term, plug in n = 7 in the above rule. Therefore,

$a_{7} =4^{7-1}$

= $4^6$

= 4096

Hope this helps you!.

6 0

3 years ago

6a + 2a + 3b + 4b =

Andrei [34K]

Answer:

8a+7b

Step-by-step explanation: 6+2=8 3+4=7

4 0

3 years ago

Here's a fairly easy math question :)

hodyreva [135]

The shape is right and pentagonal

6 0

3 years ago

Read 2 more answers

The low temperature on Monday was 16°F. On Tuesday, the low was 18°F cooler. On Wednesday, the low temperature was –4 times Tues

drek231 [11]

Answer:

$-4(16-18)$ , $[16 + (-18)](-4)$

Step-by-step explanation:

Given: The low temperature on Monday was 16°F. The low temperature on Tuesday was 18°F cooler. The low temperature on Wednesday was –4 times Tuesday’s temperature.

To find: expression that can be used to describe the low temperature on Wednesday

Solution:

Temperature on Monday = 16°F

So,

Temperature on Tuesday = $(16-18)\°F$