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
Furkat [3]
3 years ago
6

Suppose $a$ and $b$ are the solutions to the quadratic equation $2x^2-3x-6=0$. Find the value of $(a+2)(b+2)$.

Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0
We have that

2x²<span>-3x-6=0
using a graph tool----------> to resolve the second order equation
see the attached figure
the solution is 
x=-1.137
x=2.637

therefore
a=-1.137
b=2.637
so
</span>(a+2)*(b+2)-----------> (-1.137+2)*(2.637+2)--------> 0.863*4.637---> 4

the answer is 4

You might be interested in
Perform the indicated operation.(4r/r+3) - (5/r)
Aleks [24]

Answer:

4r² - 5r - 15 / r(r+3)

Step-by-step explanation:

To solve this problem, we will proceed the following way, writing down the common multiple of the denominators.

\frac{4r}{r+3} -\frac{5}{r} =\frac{4r(r)-5(r+3)}{r(r+3)} =\frac{4r^{2}-5r-15 }{r(r+3)}

Thus, the answer is 4r² - 5r - 15 / r(r+3)

7 0
3 years ago
*15 points help easy question*
DIA [1.3K]

Answer:

x = 12

Step-by-step explanation:

The segment from the vertex to the base is a perpendicular bisector.

Using Pythagoras' identity on the right triangle on the right.

(\frac{1}{2} x )² + 3² = (\sqrt{45} )² , that is

\frac{1}{4} x² + 9 = 45 ( subtract 9 from both sides )

\frac{1}{4} x² = 36 ( multiply both sides by 4 )

x² = 144 ( take the square root of both sides )

x = \sqrt{144} = 12

8 0
2 years ago
On Monday, students at a summer camp spent 4 hours and 25 minutes learning how to swim. In the morning they spent 2 hours and 48
malfutka [58]
6 hours and 13 minutes

because when you add it that is what you get

message me and i will explain more
6 0
3 years ago
Read 2 more answers
Please help me struggling
Liula [17]

Answer:

Step-by-step explanation:

find the composition of g(x)=x−1 and  h(x)=\sqrt{x}

hence we will get,

(g∘h)(x)=g(h(x))= g(x−1)= f(√x)= -1+√x =  √x -1

Now to find f(g(h(x))),

f(x)=x4+6  and g(h(x))=√x -1

hence , putt g(h(x))  in f(x) ,

f(g(h(x)))=(\sqrt{x}-1)^{4}+6 -

Plzzzz Brain-list it  or subscribe to my channel  " ZK SOFT&GAMING"

5 0
2 years ago
Please help answer this(:
liubo4ka [24]
Ur answer is c hope this helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • For what value of M is m+1p3=mp4?
    6·2 answers
  • Large Reusable bottles cost four dollars more than small ones eat large bottles cost $24 less than small ones how much does one
    9·1 answer
  • In a standard deck of playing cards, there is a total of 56 cards, 4 of which are jacks. What is the formula for the probability
    9·1 answer
  • Solve the system of equations.<br> 2y - 3x = -27<br> 5y + 3x = 6<br> What is the x ?
    10·1 answer
  • Which situation can be represented by the equation below? 15 + x = 63.75
    10·1 answer
  • Which of these relations is a function?
    12·1 answer
  • Solve for 2.
    8·1 answer
  • Please answer this question
    12·1 answer
  • A 14.5-gallon gasoline tank is $\frac{3}{4}$
    14·1 answer
  • Find the surface area of the figure
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!