All categories

4 years ago

Find the sum and choose the correct answer.

Mathematics

2 answers:

Alborosie4 years ago

5 0

B, n to the 3rd power + 4n to the 2nd power +8n -16

Alborosie4 years ago

5 0

Answer:

Option B (n³ + 4n² + 8n - 16)

Step-by-step explanation:

In this question we have to add two expressions given

( 2n³ + 4n² - 7 ) and ( -n³ + 8n - 9 )

( 2n³ + 4n² - 7 ) + ( -n³ + 8n - 9 )

Now we group the similar terms

( 2n³ - n³ ) + 4n² - ( 7 + 9 ) 8n

= n³ + 4n² - 16 + 8n

= n³ + 4n² + 8n - 16

Option B (n³ + 4n² + 8n - 16) is the correct answer.

You might be interested in

What is 40% of 42?<br> Please answer fast

Hunter-Best [27]

Answer:

16.8 is the answer

Step-by-step explanation:

(.40 x 42= 16.8)

It's super simple. Hope this helped!

8 0

3 years ago

Read 2 more answers

Plz help me I really need it

IrinaVladis [17]

Answer:

i think [after solving] that it is option B and C

Step-by-step explanation:

4 0

3 years ago

Solve for the surface area of the shape 6m 6m 6m 6m 4m

algol13

Answer:

Step-by-step explanation: add all sides together

5 0

2 years ago

Pleaseeee helpppp answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Fed [463]

Answer:

z=44

Step-by-step explanation:

One way to go about this with the given angles is to use the alternate interior angles theorem to find the full measure of ∠C and ∠A. Then, use the same theorem to set ∠BDA as 52°. Subtract all the angle measures from 360 (because the sum of the interior angles of a quadrilateral is = 360 degrees). Then divide the result by 2.

360-84-84-52-52=88

=88/2

=44

So z=44°

5 0

3 years ago

Select the correct answer.<br> Which decimal number is the same as 2/9?

stich3 [128]

Answer:

0.22222222

Step-by-step explanation:

The decimal form of $\frac{2}{9}$ is 0.22222222.

3 0

3 years ago