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
inessss [21]
3 years ago
10

12.Simplify (4x + 7)2- (4x – 7)2

Mathematics
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

28

Step-by-step explanation:

are you asking for ^2? The power of 2 is differnet than just 2

also brainliest pls

EleoNora [17]3 years ago
3 0
(4x + 7)2 - (4x - 7)2
8x + 14 - 8x - 14
0x + 0
You might be interested in
I need help!!!!!!!!!!!!!!!!
Nostrana [21]
Split the figure into 3
area of rectangle is length x width
3x6=18
5x3=15
3x6=18
add them together
18+18+15=51
8 0
3 years ago
Read 2 more answers
The length of a planet's orbit around a star is approximately 29,870,000 km.
Sliva [168]

Answer:

745 k/hr

Step-by-step explanation:

mathematically, 1 day = 24 hours

1670 days = 1670 * 24 = 40,080 hours

The speed is thus;

(29,870,000)/40,080 = 745.259

= 745 km/h

5 0
3 years ago
At a cost restaurant the cost for a hot dog and a soft drink is $2.10. The cost for two hot dogs and three soft drinks is $5.15.
Alja [10]

Answer:

The cost of soft drink is $0.95

Step-by-step explanation:

Let the cost of hot dog be x

Cost of 2 hot dogs = 2x

Let the cost of soft drink be y

Cost of 3 soft drinks = 3y

At a cost restaurant the cost for a hot dog and a soft drink is $2.10.

So, x+y=2.10

The cost for two hot dogs and three soft drinks is $5.15

So, 2x+3y=5.15

Plot the lines on the graph:

x+y=2.10 --Purple line

2x+3y=5.15 --- Black Line

Intersection point =(x,y)=(1.15,0.95)

Hence The cost of soft drink is $0.95

7 0
3 years ago
_×_=72 i really need help
iragen [17]
9 times 8 equals 72. I hope this answered your question!
6 0
3 years ago
Read 2 more answers
Which expression has the same value as 4÷25 in fraction form
otez555 [7]

Answer:

4/25

Step-by-step explanation:

It is a fraction with 4 in the numerator and 25 in the denominator.

4

__

25

6 0
3 years ago
Other questions:
  • Are the ratios proportional?<br> 2/7 and 6/21
    11·1 answer
  • 1. One of two numbers is two thirds the other number. The sum of the numbers is 45. Find the numbers
    5·1 answer
  • Given f(x)=4x^2-9 and g(x)=2x+3 find each function or value<br> (f-g)(4)
    14·1 answer
  • Please help me on this i don’t get it that well
    8·1 answer
  • In order to solve the equation −3x − 6 = 5, the first step is to
    14·2 answers
  • I need help understandingbox and whisker plot equations. Can someone help me?
    11·1 answer
  • It is possible to measure the lensth
    13·1 answer
  • The endpoints of a line are (10, 4) and (-2, 8). Find the slope of<br> the line.
    6·1 answer
  • How do I change ratio to a fraction (in simplest form)?​
    13·1 answer
  • 2 1/4 x 3 2/3 as a fraction
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!