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
pychu [463]
2 years ago
13

(9a^2 + 7a + 8) - (2a^2 + 5a + 1)

Mathematics
1 answer:
Sergio [31]2 years ago
8 0

Answer:  7a^2+2a+7

Step-by-step explanation:Distribute the Negative Sign:

=9a2+7a+8+−1(2a2+5a+1)

=9a2+7a+8+−1(2a2)+−1(5a)+(−1)(1)

=9a2+7a+8+−2a2+−5a+−1

Combine Like Terms:

=9a2+7a+8+−2a2+−5a+−1

=(9a2+−2a2)+(7a+−5a)+(8+−1)

=7a2+2a+7

You might be interested in
Bath and 1 yard of ribbon. She is 1/2 yard for project. She wants to divide the rest of the ribbon into pieces 1/4 yards long. H
ikadub [295]

Answer:

2

Step-by-step explanation:

Given:

Total length of ribbon = 1 yard

Length of ribbon used for project = \frac{1}{2} yard

Length of ribbon the rest of ribbon is to be divided = \frac{1}{4} yard

To find:

The number of ribbons of length \frac{1}{4} yard that can be made = ?

Solution:

Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = 1-\frac{1}{2} =\frac{1}{2} yard

Now, number of ribbon of length \frac{1}{4} yard can be found be dividing the length of ribbon left with the length of ribbon pieces to be cut.

i.e.

Number of ribbons:

\dfrac{\frac{1}{2}}{\frac{1}{4}}\\\Rightarrow \dfrac{1}{2}\times 4 = 2

3 0
3 years ago
What is the difference in place value between 2 in 324 and the 2 in 0.324
icang [17]

Answer: the decimal should still be there but you don’t want to have a zero so 3.42 would be correcr

Step-by-step explanation:

4 0
3 years ago
I have 5 dogs and 3 puppies what percent are puppies
romanna [79]
5+3 = 8
8 is 100%
3/8 = 37.5%
I feel like I might be wrong haha sorry if I am
6 0
2 years ago
Read 2 more answers
Determine o valor das seguintes expressões.
Alisiya [41]

a). (17º-17'-17")  =  17<span><span>º + 17'/60 + 17"/3600  =  </span>17.288055...</span><span>º

</span>17.288055...º / 4 = 4.322...º =  <em>4</em><span><em>º - 19' - 19.25"  </em><em /></span><span><== <span>a resposta</span>

b) (18º: 8 + 23º: 4 - 8º)

18</span><span>º / 8  =  2.25</span><span>º
23</span><span><span>º / 4  =  </span> 5.75</span><span>º

(2.25</span><span>º + 5.75</span><span><span>º </span>- 8º) = <em>0</em></span>  <== a resposta


6 0
3 years ago
Bertha is running a marathon. Before she started to run, she drank 16 ounces of
Contact [7]

Answer: 68 ounces

Step-by-step explanation: 26x 2= 52   52+ 16= 68 ounces

7 0
3 years ago
Other questions:
  • The graph shows the number of jam jars filled by two different machines over several minutes.
    15·2 answers
  • Subtract exponents 9x10 3 -1x10 4
    10·1 answer
  • Health experts agree that cholesterol intake should be limited to 300 mg or less each day. Three ounces of shrimp and 2 ounces o
    12·1 answer
  • mr. Carter math class question know the favorite spectator sport of the students at their High School listed are four examples m
    6·1 answer
  • Identify the polygon that has vertices A(−10,−1), P(−7,3), E(−3,0), and X(−6,−4), and then find the perimeter and area of the po
    8·1 answer
  • Find the area of the triangle <br> 19cm<br> 15cm<br> 12cm
    14·1 answer
  • Grace has 634 stickers. Huiling has 210 stickers. How many stickers must Grace give Huiling so that both of them have the same n
    13·1 answer
  • –21:(–2 – 5) + ( –14) + 6.(8 – 4.3)​
    15·1 answer
  • Use the following information to answer the question that follows:
    11·2 answers
  • Choose the number that is less than:3.15 x 10A.1.11 x 10B.9.9 x 10C.36,500D.3.26 x 10
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!