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
zaharov [31]
3 years ago
11

Help plz!!!

Mathematics
1 answer:
lara [203]3 years ago
6 0

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.

You might be interested in
A method currently used by doctors to screen patients for a certain type of cancer fails to detect cancer in 15% of the patients
Novosadov [1.4K]

Answer:

A technique presently used through docs to display screen ladies for breast most cancers fails to observe most cancers in 15% of the girls who without a doubt have the disease. A random pattern of eighty girls acknowledged to have breast most cancers are to be screened the use of a new technique that researchers suppose will be capable to realize most cancers greater accurately. At the 0.05 stage of significance, the researchers will be capable to conclude that the new approach is higher than the present day one if the fantastic.

Answer::: greater than 1.645

8 0
3 years ago
In a classroom of students 3 out of 5 students are boys. If the total amount of students is 35 how many students are boys. Pleas
Bumek [7]

Answer:

there is 21 boys

Step-by-step explanation:

hope that helps

6 0
2 years ago
Which has the bigger surface area? Jamal's, which is 3 by 3 by 4 ft, or Andy's, which is 4 by 2 by 5 ft and why?
oksano4ka [1.4K]

Jamal-3 x 3 = 9 x 4 = 36


Andy-  4 x 2 = 8 x 5 = 45


Andy's surface area is bigger.

6 0
3 years ago
In the figure, angle D measures 45° and angle E measures 87°. What is the measurement of angle H?
scZoUnD [109]
Hat means y + z = 180. 

<span>y is thrice than z means y = 3 * z. </span>

<span>replace y with 3 * z in the equation of y + z = 180 to get 3 * z + z = 180. </span>

<span>combine like terms to get 4 * z = 180. </span>

<span>solve for z to get z = 180 / 4 = 45 degrees. </span>

<span>since y = 3 * z, then y = 3 * 45 = 135 degrees. </span>

y = 135
<span>z = 45 </span>

y + z = 180 becomes 135 + 45 = 180
<span>y = 3 * z = 135 = 3 *45 </span>

<span>solution is confirmed to be good.</span>
3 0
3 years ago
Read 2 more answers
2 less then 5 times a number
Alex

Answer:

5-2n

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • You go for a half day hike. In 4 hours, you hike 10 miles. Which is a unit rate that describes your journey? A- 5 miles per hour
    14·1 answer
  • A ladder is 10 feet long and rests on a wall. The base of the ladder is 5 feet from the wall. Determine how high the ladder touc
    13·2 answers
  • How many countries are in the $55,000 to<br><br> $69,999 range?
    14·1 answer
  • Point A is located at negative 4 over 6 and point B is located at negative 1 over 6. What is the distance between points A and B
    5·2 answers
  • The graph of a linear
    11·1 answer
  • A jet plane carry up to 200,000 liters of fuel. It used 130,000 of fuel during the flight what is the %
    12·1 answer
  • Sergio has a perfectly square TV. The area of his TV is 36 square miles. What is the length of one side of his TV?​
    12·1 answer
  • Simplify 6+4+2.9(32.8-17.4).<br> Help
    13·1 answer
  • 1/3 times 3/4 times 1/3 as a fraction so basically what is 0.08333333333 as a fraction
    13·2 answers
  • Please help! Will mark brainliest &lt;3. (Click on the photo too see the question!) you need to select all angle pairs that are
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!