1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paul [167]
3 years ago
9

(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)

Mathematics
1 answer:
ladessa [460]3 years ago
7 0

Answer:

7x⁴ + 5x³ + 7x² + 6x + 5

Step-by-step explanation:

The given expression is

(5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)

The first step is to open the brackets by multiplying each term inside each bracket by the term outside each bracket. Since the term outside each bracket is 1, the expression becomes

5x⁴ + 5x³ + 4x - 9 + 2x⁴ + 7x² + 2x + 14

We would collect like terms by combining each term with the same exponent or raised to the same power. The term would be arranged in decreasing order of the exponents. It becomes

5x⁴ + 2x⁴ + 5x³ + 7x² + 4x + 2x - 9 + 14

7x⁴ + 5x³ + 7x² + 6x + 5

You might be interested in
Find the value of x for which the lines r and s are parallel. answers: 13 47 48 12
juin [17]

Answer:

x=12

Step-by-step explanation:

142 and 3x+2 are supplementary angles when the lines are parallel

142+ 3x+2 = 180

Combine like terms

144+3x= 180

Subtract 144 from each side

144+3x-144=180-144

3x=36

Divide by 3

3x/3 = 36/3

x =12

3 0
3 years ago
Alessia fills her baby pool with 75 liters of water. How many 1-gallon containers will it take for her to fill the pool with the
8090 [49]
Answer: It will take 19.5 one-gallon containers

Explanation: We know that 1 liter is 0.26 gallons

All we need to do is to make a ratio

1 75
---- -----
0.26 ?

We need to do what we did on the top (times 75 to get 75) on the bottom (times 75 to get 19.5)

Hope this helps!
5 0
3 years ago
Lee Middle School orders 15 textbooks for every 12 students. The table shows how many textbooks the school orders for certain nu
Mariulka [41]

Answer: 90 textbooks


Step-by-step explanation:

everytime you multiply the number of students you multiply the books by the same number. to find how many times 72 was multiplied you divide it by 12.

72 ÷ 12 = 6

then multiply the original number of books (15) by 6.

15 * 6 = 90

so for every 72 students the school orders 90 textbooks

5 0
3 years ago
Please help as soon as possible
lidiya [134]
The slope is 0
Y=0x+3
3 0
2 years ago
Medical students compared two types of knee surgery to determine if patients were able to return to their active lifestyles. The
sweet [91]

Answer:

Option A

Step-by-step explanation:

The response variable is the dependent variable whose variation depends on other variables and in this case it is the type of surgery either total knee replacement or partial knee replacement.

While the explanatory variable which is the independent variable manipulated by the researcher for the given experimental study is the amount of activity the patients were able to do after their respective surgeries.

5 0
3 years ago
Other questions:
  • Select the correct answer from each drop-down menu. The equation (y-2)^2/3^2 - (x-2)^2/4^2=1 represents a hyperbola whose foci a
    12·1 answer
  • I need help finding out what x is only using the sine and cosine rule.
    5·1 answer
  • Find the domain of the graphed function.
    9·1 answer
  • A random sample of 21 students from the U and 21 students at A&T were surveyed about their music listening habits. Their res
    6·1 answer
  • Pita has 12 coins in her bag there are three £1 coins and nine 50p coins she takes 3 coins from the bag at random work out the p
    8·1 answer
  • Next part of it.....​
    13·2 answers
  • Someone I need help this is my last time on this app I need help (correct answers only )
    7·2 answers
  • The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fr
    11·2 answers
  • 1) A builder laying the foundations of a garage wants to be sure he has the walls of the garage are at right angles. The length
    12·1 answer
  • 201 ft<br> 15 ft 6<br> 200 ft<br> Find the perimeter of the triangle
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!