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3 years ago

(4x3 – 2x2 + 3x – 1) + (5r2 - x - 5). What is the sum ?

Mathematics

1 answer:

Lunna [17]3 years ago

3 0

The sum is 4x³ + 3x² + 2x – 6.

Solution:

The correct question is given below.

(4x³ – 2x² + 3x – 1) + (5x² – x – 5). What is the sum?

<u>To find the sum of the polynomial:</u>

Sum of (4x³ – 2x² + 3x – 1) and (5x² – x – 5)

= (4x³ – 2x² + 3x – 1) + (5x² – x – 5)

Remove the parentheses.

= 4x³ – 2x² + 3x – 1 + 5x² – x – 5

Group like terms together.

= 4x³ – 2x² + 5x² + 3x – x – 1 – 5

Add the similar elements. i.e the element with same power.

= 4x³ + 3x² + 2x – 1 – 5

Subtract the constant terms.

= 4x³ + 3x² + 2x – 6

The sum is 4x³ + 3x² + 2x – 6.

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Al hallar la razon entre las expresiones 66000000000 y 0,00000000022 da como resultado

poizon [28]

Answer:

D. 3X10^10

Step-by-step explanation:

Suponiendo que X significa tiempos, entonces la respuesta más cercana que tendría sentido que puedes obtener es D.

¡Espero que esto te haya ayudado!

4 0

3 years ago

X to the power of three equals 343

Norma-Jean [14]

X^3= 343

Find the cube root of both sides
∛x^3 = ∛343

x= 7

Final answer: x=7

3 0

3 years ago

Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of he

melomori [17]

<h3><u>Answer:</u></h3>

Option: C is the correct answer.

$ 1.50 is the cost of 1 eraser.

<h3><u>Step-by-step explanation:</u></h3>

Alicia bought a notebook and several erasers at the student store.

Let the cost of 1 eraser=$ x.

Now from the scatter plot we could see that when Alicia did not bought any eraser then her total cost =$ 2.

That means cost of a notebook=$ 2.

Now when she buys a notebook and two eraser then she pays=$ 5.

i.e.

Total cost=cost of notebook+ 2× cost of 1 eraser

Total cost=cost of notebook+2×x

i.e.

5=2+2x

⇒ 2x=5-2

⇒ 2x=3

⇒ x=1.5

Hence, cost of one eraser is:

$ 1.50

6 0

3 years ago

Read 2 more answers

-2(x+5)=4 Can someone explain I need an one number answer.

Irina18 [472]

Answer:

Explanation:

−

take 10 from both sides

−

divide both sides by -2 to find x

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

.John has $40. He will use some of the money to buy books, and he wants to have at least $10 left to put in his savings account.

Crank

Answer:

The required inequality is $40-6b\leq 10$ .

Jhon can buy at most 5 books.

Step-by-step explanation:

Consider the provided information.

Part(A)

Let b represent the number of books John buys.

He wants at least $10 in his savings account which means if we subtract the cost of books from $40 we have at least $10 left.

$40-6b\leq 10$

The required inequality is $40-6b\leq 10$ .

Part(B)

$40-6b\leq 10$

$-6b\leq 10-40$

$b \leq\frac{30}{6}$

$b\leq 5$

Part(C): Jhon can buy at most 5 books.

3 0

3 years ago