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
irga5000 [103]
3 years ago
6

Find The Zero Of The Function F (x)=x^2+3x-10 And F (x)=-x^2+8x+9

Mathematics
2 answers:
Marrrta [24]3 years ago
7 0
F(x)=x²+3x-10,

When f(x)=0,

x²+3x-10=0

(x+5)(x-2)=0

x=-5 and x=2.

------------------------

g(x)=-x²+8x+9

When g(x)=0,

(x+1)(9-x)=0

x=-1, x=9.
Olegator [25]3 years ago
3 0
1)
F(x)=x^2+3x-10 \\
0=x^2+3x-10 \\
0=x^2-2x+5x-10 \\
0=x(x-2)+5(x-2) \\
0=(x+5)(x-2) \\
x+5=0 \ \lor \ x-2=0 \\
x=-5 \ \lor \ x=2 \\ \\
\hbox{the function has two zeroes: x=-5 and x=2}

2)
F(x)=-x^2+8x+9 \\
0=-x^2+8x+9 \\
0=-x^2-x+9x+9 \\
0=-x(x+1)+9(x+1) \\
0=(-x+9)(x+1) \\
-x+9=0 \ \lor \ x+1=0 \\
x=9 \ \lor \ x=-1 \\ \\
\hbox{the function has two zeroes: x=-1 and x=9}
You might be interested in
What is the perimeter of a rectangle with an area of 2x^2+11x+5 in^2?​
kirza4 [7]

Answer:

6x + 14

Step-by-step explanation:

Area = side x side

Factor the quadratic:

2x^2 +10x / +1x +5

2x(x+5) 1 (x+5)

(2x + 1) (x+5)

^These are your two sides

Perimeter =2L + 2W

(2(2x+1)) + (2(x+5))

4x+4+2x+10 = final answer 6x + 14

6 0
3 years ago
a trail is 5 miles long. carlos walks 2/3 of the trail and runs the rest. how many miles does carlos walk?
lana [24]

Answer:

as 1 mile = 1.609 km

so 5miles = 8.045 km

so 2/3 of the trail = 2/3 × 8.045 = 5.3633333 (ans)

Hope it helps

8 0
3 years ago
Hal used the following procedure to find an estimate for Step 1: Since and and 81 < 82.5 < 100, is between 9 and 10. Step
aalyn [17]
The answer would be i<span>n step 4, he made an error in determining which value is closer to 82.5</span>
6 0
3 years ago
Read 2 more answers
Explain how to use 8×5=40 to find 8×6.
Zina [86]

Answer:

Well there are many different ways to find 8x5=40 to 8x6=__

You could add 8 to 40 and get 48.

or you could draw pictures to represent the 48.

8x6=48

7 0
3 years ago
Jerome deposits $4,700 in a certificate of deposit that pays 6 1/2% interest, compounded annually. How much interest does Jerome
Inessa05 [86]

Answer:

$305.5

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A credit card issuer offers an APR of 13.64% and compounds interest daily. which is it most likely to advertise, its APR or its
    10·2 answers
  • Solving the equation x + 2(x – 5) = 320
    6·1 answer
  • Please help (problem in picture)
    7·1 answer
  • Can someone please explain how you do this. I would really appreciate it.
    8·1 answer
  • Convert 7.82km to centimeters and 4871 mm to centimeters​
    15·1 answer
  • The diagram shows a rectangular yard. Each small block is
    6·1 answer
  • Solve the system of equations using elimination.<br> 4x+3y=3<br> 4x-2y=18
    14·2 answers
  • Given the exponential function .
    14·1 answer
  • Help show work pls for brisnly
    11·1 answer
  • 1-
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!