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
nikitadnepr [17]
3 years ago
9

Simplify: (3n2 +9+5n4 – 3n)+(-9n* - 7 -5n?)

Mathematics
1 answer:
Alona [7]3 years ago
7 0

Answer:

3n^2+9+5n^4+55n

Step-by-step explanation:

Steps

$\left(3n^2+9+5n^4-3n\right)+\left(-9n\left(-7\right)-5n\right)$

$\mathrm{Remove\:parentheses}:\quad\left(a\right)=a,\:-\left(-a\right)=a$

$=3n^2+9+5n^4-3n+9n\cdot\:7-5n$

$\mathrm{Add\:similar\:elements:}\:-3n-5n=-8n$

$=3n^2+9+5n^4-8n+9\cdot\:7n$

$\mathrm{Multiply\:the\:numbers:}\:9\cdot\:7=63$

$=3n^2+9+5n^4-8n+63n$

$\mathrm{Add\:similar\:elements:}\:-8n+63n=55n$

$=3n^2+9+5n^4+55n$

You might be interested in
Brainliest if answered correctly.
allochka39001 [22]

Answer:

a=35°, b=55°, c=110°

Step-by-step explanation:

reason for a and b is that when 2 lines intersect, the opposite angles are equal.

well for c angles on a straight line add upto 180.

6 0
2 years ago
What is the volume of a rectangular prism with a length of 1. 4 meters, a width of 0. 5 meter, and a height of 1. 8 meters? 7. 5
mihalych1998 [28]

The volume of the rectangular prism will be  V=1.26m^{3}

<h3>What will be the volume of the rectangular prism ?</h3>

Given that

\rm Lenth \ of \ the \ rectangular \ prism =1.4\ m

\rm width\ of \ prism=0.5\ m

\rm Height \ of \ prism=1.8\ m

\rm Volume \ of \ the \ Rectangular \ Prism= L\times W\times H

V=1.4\times 0.5\times1.8=1.26 \ m^{3}

Thus the volume of the rectangular prism will be  V=1.26m^{3}

To know more about the volume of the rectangular prism follow

brainly.com/question/24284033

6 0
2 years ago
THERE ARE 4 QUESTIONS BELOW!
Whitepunk [10]
1. $240 in commission. If you add the weekly salary, it would be $635.

2. 35%

3. $8.30

4. $57.96

5. Sales tax on an item is a percent of increase. A discount on an item is a percent decrease. A tip on a bill is a percent increase.
5 0
2 years ago
Please help me wonderful people! its math!!
Westkost [7]
Where the blue scribble is!

3 0
3 years ago
Read 2 more answers
Excellence Middle School charges $6.25 for students from all grade levels to attend the school dance. If S represents the number
vlabodo [156]
The answer would be b: 6.25(s+g)

you can already cancel out c., as there’s no way it could be 13.50

since it says it’s $6.25 dollars for all grades and you would be trying to find both 7th and 8th graders, you would need to multiply both variables by the amount they need to pay. in this case, $6.25.
6 0
2 years ago
Other questions:
  • What is 552945 rounded to one hundred thousands
    13·1 answer
  • John purchased a toy for his young daughter. The toy included nine colorful plastic pieces in the shape of the numbers from 1 to
    8·1 answer
  • In a company, 70% of the workers are women. If 1620 men work for the company, how many workers are there in all?
    15·1 answer
  • What divided by 63 equals 9
    9·2 answers
  • Which choice correctly describes this event? I will flip a coin 100 times and get heads exactly 50 times and tails exactly 50 ti
    9·2 answers
  • (W+10)(w-10) simplify
    10·2 answers
  • Please help me please!!!!!
    9·1 answer
  • Suppose 3 people each called 3 friends on the phone.
    9·1 answer
  • Two players sangeta and reshma play a tennis match . It is known that the probability of sangeeta winning the match is 0.62 what
    7·1 answer
  • Simplify 8(x - 4).Simplify 8(x - 4).<br><br> 8 x - 4<br> 8 x - 32<br> x - 32<br> x - 4
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!