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3 years ago

HELP ASAP PLEASE

Mathematics

1 answer:

timama [110]3 years ago

4 0

B? I think it’s b yeah I think it’s be

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Can someone please check my answer? I really need help with this

Inessa05 [86]

Answer:

a = – 8

Step-by-step explanation:

From the question:

When P(x) = 2x³ – ax² + 4x – 4 is divided by x – 1, it gives a reminder of 10.

To obtain the value of a, we shall equate x – 1 to 0 as illustrated below:

x – 1 = 0

x = 0 + 1

x = 1

Next, we shall substitute the value of x into 2x³ – ax² + 4x – 4 and equating it to 10 as illustrated below:

2x³ – ax² + 4x – 4 = 10

x = 1

2(1)³ – a(1)² + 4(1) – 4 = 10

2 – a + 4 – 4 = 10

2 – a = 10

Collect like terms

– a = 10 – 2

– a = 8

Divide through by –1

a = – 8

Therefore, the value of a is –8.

5 0

3 years ago

See the picture and do the given questions

sasho [114]

a. 66

b. 100

c. 100

Hope this helps! :)

6 0

3 years ago

Which of the following values in the set below will make the equation 7x + 1 = 22 true? (Only input the number.)

mamaluj [8]

The value that makes the equation true is 3!
7(3) + 1 = 22

5 0

3 years ago

Read 2 more answers

Select all the correct answers.

Andrews [41]

Answer:

Option A, Option D and Option E are correct options.

Step-by-step explanation:

We need to find solutions of the inequality: $2x^2-1>6x$

We will check the options and see, which options satisfy the inequality.

Option A

x=-4

Put x=-4

$2x^2-1>6x\\2(-4)^2-1>6(-4)\\2(16)-1>-24\\32-1>-24\\31>-24\:\:True$

So, x=-4 is the solution of inequality.

Option B

x=3

Put x=-3

$2x^2-1>6x\\2(3)^2-1>6(3)\\2(9)-1>18\\18-1>18\\17>18\:\:False$

So, x=3 is not the solution of inequality.

Option C

x=1

Put x=1

$2x^2-1>6x\\2(1)^2-1>6(1)\\2(1)-1>6\\2-1>6\\1>6\:\:False$

So, x=1 is not the solution of inequality.

Option D

x=5

Put x=5

$2x^2-1>6x\\2(5)^2-1>6(5)\\2(25)-1>30\\50-1>30\\49>30\:\:True$

So, x=5 is the solution of inequality.

Option E

x=-2

Put x=-2

$2x^2-1>6x\\2(-2)^2-1>6(-2)\\2(4)-1>-12\\8-1>-12\\7>-12\:\:True$

So, x=-2 is the solution of inequality.

So, Option A, Option D and Option E are correct options.

7 0

3 years ago

If x + 4 = 12, what is the value of x?

cluponka [151]

Answer:

Step-by-step explanation:

To find the answer to these problems you can work backwards

12-4=8

5 0

3 years ago

Read 2 more answers