All categories

1 year ago

What is the sum of the polynomials?

Mathematics

2 answers:

AfilCa [17]1 year ago

8 0

Answer:

3x^2+6x+4

Step-by-step explanation:

We can find the sum of the polynomials by combining like terms.

(6x+7+x²)+(2x²-3)

x^2+2x^2+6x+7-3

3x^2+6x+4

VMariaS [17]1 year ago

6 0

Answer:

3x² + 6x + 4

Step-by-step explanation:

6x + 7 + x² + 2x² - 3

→ Collect like terms

x² + 2x² + 6x + 7 - 3

→ Simplify

3x² + 6x + 4

You might be interested in

Consider this exponential equation:

ioda

Step-by-step explanation:

F( x ) = 5 (3) ^ x

Y intercept

Let x = 0

f(0) = 5× 3 ^ 0

f(0 = 5 × 1

f(0) = 5

X intercept

let y = o

0 = 5 × 3 ^x

No x intercept/ zero

therefore

Vertical intercept (0; 5)

Domain XER

▪︎this refer to the values of X

4 0

2 years ago

Seth's balcony is 7 feet wide and 14 feet long. Seth paid $4.00 per square foot to have the

BlackZzzverrR [31]

Answer:

392

Step-by-step explanation:

4 0

2 years ago

The volume of a cube is 8000 cubic feet, what is the area of one of its faces?

eimsori [14]

Since a cube is l x w x h, find the length of one side first:

∛8,000 = 20

The length of one side is 20 feet. This can represented as "s".

To find the area of one of the faces, use s²:

20² or 20 x 20 = 400

The area of one face is 400 ft²!

4 0

3 years ago

50 apple's cost $25. How much would 75 apples cost?

8_murik_8 [283]

Answer:

$37.5

Step-by-step explanation:

(25/50) x 75 = 37.5

$25/50 .... each apple cost $0.5

0.5 x 75 = 37.5

8 0

2 years ago

Joshua's family took a road trip to Mount Rushmore. Joshua fell asleep 35% of the way through the trip. If the total length of t

stiks02 [169]

You need to calculate 35% of 400.

The way I do this on paper is I split it up into chunks and then add the chunks together.

First I would calculate 10%. To do this, divide 400 by 10, because to get from 100% to 10% you must divide by 10.

So 10% = 40

You need 30%, so you just multiply by 3, because to get from 10% to 30%, you multiply by 3.

So 30% = 120

5% is half of 10% so half of 40 is 20.

So 5% = 20

30% + 5% = 35%

120 + 20 = 140

So they had traveled 140 miles when Joshua fell asleep. Hope this helps :)

4 0

3 years ago

Read 2 more answers