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
Valentin [98]
3 years ago
8

Adding and Subtracting Polynomials Matching 1

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
8 0
What’s the question?
miv72 [106K]3 years ago
4 0

Answer:

?

Step-by-step explanation:

You might be interested in
X/5 - 12 = -8 x=? what​
lutik1710 [3]
X = 20

If you multiply both sides by 5 to get rid of the fraction ( x - 60 = -40 ) the answer would become clear.
4 0
3 years ago
Factor 225x2 - 1. A) (15x +1)(15x + 1) B) (15x - 1)(15x + 1) C) (15x - 1)(15x - 1) D) (125x - 1)(125x + 1)
MrRa [10]

Answer:

B)

Step-by-step explanation:

225x^2 - 1=

(15x)^2 - 1^2=(*)

(15x-1)(15x+1)

A^2 - B^2 =(A-B)(A +B)............. (*)

4 0
3 years ago
Read 2 more answers
A bag contains three white marbles, two black marbles, and five red marbles. Find the probability of picking a black marble.
Sveta_85 [38]
Hope this helps you!

3 0
3 years ago
A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:
Kaylis [27]

Answer:

A.

mean = 724.2

Median = 715

Mode = 768

B.

Range = 85

Standard deviation = 29.30

C.

Interval = [665.6, 782.8]

Step-by-step explanation:

Number of samples n = 25

Summation X= 769 + 691 + 699 +730+711+ 765+ 702 718 +719 +712+ 768 +688 +757+695 768 +735 +709 +758 +708+ 693 +736 700+ 687 +772 +715 = 18105

A.

1. Mean = 18105/25

= 724.2

2. Median is the middle value when arranged from the least value to the highest = 715

3. Mode is the number with the highest frequency = 768 (occured two times)

B.

1. Range = highest value - lowest value

Highest value = 772

Lowest value = 687

772-687 = 85

2. Standard deviation = √(X-barX)²/n-1

= √20604/25-1

=√858.5

= 29.30

Please check attachment for the full calculation of the standard deviation

C.

Interval

[Mean - 2(sd), mean + 2(sd)]

= [724.2-2x29.3, 724.2+2x29.3]

=[665.6, 782.8]

4 0
2 years ago
Tyler used 6 gallons of paint to paint 4/7 of a fence. How many gallons will it take to paint the whole fences
vredina [299]

Answer:

Step-by-step explanation:

(6 gal)/(4/7 fence) = (21/2 gal)/fence = (10.5 gal)/fence

5 0
3 years ago
Other questions:
  • What is the surface area of a cylinder with a height of 20 meters and a diameter of 8 meters?
    15·1 answer
  • Does a central angle and its intercepted arc have the same measure?
    13·1 answer
  • Please help will mark brainliest answer!
    10·2 answers
  • A cone and a triangular pyramid have a height of 9.3 m and their cross-sectional areas are equal at every level parallel to thei
    6·1 answer
  • Find the volume and surface area
    14·1 answer
  • ABCD is not drawn to scale based on the diagonal measures given ABCD___ a parallelogram
    6·1 answer
  • . <br> Find the measure of angle C if the area of triangle ABC (below) is 54 square inches.
    14·1 answer
  • -2.7f + 0.8f -14 -5 please help
    14·1 answer
  • How do you solve for (w-2)²-63=0 where w is a real number
    11·1 answer
  • Write an expression that would represent the number of bags of Reese’s( three more than the number of bags of lollipops)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!