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
Natasha_Volkova [10]
3 years ago
6

Prove that 3(x+1)(x+7)-2x+5)^2 is never positive

Mathematics
1 answer:
lisov135 [29]3 years ago
5 0

Answer:

Yes, 3(x+1)(x+7)-(2x+5)² is never positive

Step-by-step explanation:

So....

3(x+1)(x+7)-(2x+5)(2x+5)

=3(x²+8x+7)-(4x²+20x+25)

=3x²+24x+21-4x²-20x-25

=-x²+4x-4

You might be interested in
Solve the equation. x2 = 160
zhannawk [14.2K]
80 because 160 divided by 2 is 80 so 2 x 80
7 0
3 years ago
Read 2 more answers
ANYONE PLEASE HELP!!
lapo4ka [179]

Answer:

A

Step-by-step explanation:

Corresponding angles are angles that you can follow down the transversal and they will land in the same spot on the other parallel line.  Look at angle 8.  It is the bottom left angle in the group of 4 angles around it.  If you slide it to the left it would land right on top of angle 4 which is also in the bottom left of its group of 4 angles.

You can do the same thing taking angle 8 down to angle 12.

4 0
2 years ago
Read 2 more answers
the functions f(x) and g(x) are described using the following equation and table: f(x) = −6(1.02)x x g(x) –1 –5 0 –3 1 –1 2 1 wh
amid [387]
F(x) = -6(1.02)^x has a y-intercept at f(x) = -6(1.02)^0
f(x) = -6(1)
f(x) = -6
f(x) has a y-intercept at (0, -6)

g(x) has a y-intercept at (0, -3)

Therefore, the y-intercept of f(x) is equal to 2 times the y-intercept of g(x).
3 0
3 years ago
Read 2 more answers
A carpenter has a board of 18.5 feet long and needs to cut as many 1.75 feet long pieces as possible how many pieces can the car
Lostsunrise [7]

Answer:


Step-by-step explanation:


6 0
4 years ago
If the cost is $3000, and the revenue is $6000, what is the profit margin?
lorasvet [3.4K]

Answer: Wouldn't it be $3000 dollar profit? Because 6000-3000 is 3000

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Workers have packed 1,400 glasses in 7 boxes. If they pack 3 more boxes, how many glasses will they have packed in all?
    14·2 answers
  • 5. Mrs. Parker is providing lunch at her next staff meeting. She will pay $15.75 for 3 people
    11·1 answer
  • What is the complement of 14 degrees
    14·2 answers
  • WHAT IS THE UNIT RATE 1000 MILES PER SECOND
    6·1 answer
  • 6 less than r <br><br><br><br> Someone please help me with this
    10·1 answer
  • Its complete solution <br>and answer is 45​
    5·1 answer
  • Grumpy is… well… grumpy. He wants to play but there is no one to play with! Can you help him work this equation out?
    14·2 answers
  • If an object has a density of 6.g/mL and you put it into water, will it sink or float?​
    10·1 answer
  • Solve - 12x ≤ 72 and then plot the solution set on the number line.
    14·1 answer
  • G(x)=-3x-8<br>g( )=10<br>what does x equal?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!