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kompoz [17]
2 years ago
9

HELP PLEASE!!!!!!!!!!!!!!!

Mathematics
1 answer:
sukhopar [10]2 years ago
6 0

Answer:

21

Step-by-step explanation:

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Help plz!!!
lara [203]

Answer with explanation:

→→→Function 1

f(x)= - x²+ 8 x -15

Differentiating once , to obtain Maximum or minimum of the function

f'(x)= - 2 x + 8

Put,f'(x)=0

-2 x+ 8=0

2 x=8

Dividing both sides by , 2, we get

x=4

Double differentiating the function

f"(x)= -2, which is negative.

Showing that function attains maximum at ,x=4.

Now,f(4)=-4²+ 8× 4-15

           = -16 +32 -15

          = -31 +32

          =1

→→→Function 2:

f(x) = −x² + 2 x − 3

Differentiating once , to obtain Maximum or minimum of the function

f'(x)= -2 x +2

Put,f'(x)=0

-2 x +2=0

2 x=2

Dividing both sides by , 2, we get

x=1

Double differentiating the function,gives

f"(x)= -2 ,which is negative.

Showing that function attains maximum at ,x=1.

f(1)= -1²+2 ×1 -3

   = -1 +2 -3

  = -4 +2

 = -2

⇒⇒⇒Function 1  has the larger maximum.

6 0
3 years ago
Mr. Sonny's science class is calculating the average number of blinks per minute. Jan blinks 126 times in 7 minutes. What is her
vlabodo [156]
18 blinks per min since 126 divided by 7 equals 18
3 0
2 years ago
Read 2 more answers
Please help!! Select the correct answer??
VladimirAG [237]
The quotient is : 5x-12+(25)/(x+3)

The remainder is : 25 
5 0
3 years ago
Help me ASAP<br> Simplify. <br> 7 – 2 • 5 + 9 • 3<br> A.24<br> B.102<br> C.-30<br> B.18
nadya68 [22]
7 – 2 • 5 + 9 • 3
A.24
8 0
3 years ago
Solve for x<br> -4+4x=16
vesna_86 [32]
X=5 because 4x5=20 and 20-4=16
7 0
3 years ago
Read 2 more answers
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