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
Sedbober [7]
3 years ago
7

WILL GET BRANLIEST

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
6 0

Answer:

The correct options are;

Answer to A1 is D

Answer to A2 is D

Answer to A3 is D

Answer to A4 is D

Answer to A5 is D

Answer to A6 is D

Answer to A7 is D

Answer to A8 is D

Answer to A9 is D

Answer to B1 is I

Answer to B2 is I

Answer to B3 is I

Answer to B4 is I

Answer to B5 is I

Answer to B6 is I

Step-by-step explanation:

The given function is f(x) = 9·x² + 54·x - 66

The extremum of the function are found as follows;

d(f(x))/dx = 0 = d(9·x² + 54·x - 66)/dx = 18·x + 54

∴ 18·x + 54 = 0 at the maximum or minimum points

x = -54/18 = -3

Given that d²(f(x))/dx² = 18 > 0. x = -3 is a minimum point

Given that the function is a quadratic function, we have;

1) Points to the left of x = -3 are decreasing

2) Points to the right of x = -3 are increasing.

You might be interested in
a photograph has a perimeter of 24 in the difference between the photographs Lane and the width is 2 inches. find the length and
DaniilM [7]

L-w=5

L=w+5

P=2*(L+w)=24

L+w=24/2

L+w=12

w+5+w=12

2w+5=12

2w=12-5

2w=7

w=7/2

w=3.5

L=2+3.5

L=5.5

8 0
3 years ago
Last week, Delon ran a total of 32 miles. This week, he increased his running distance by 6.4 miles. By what percentage did he i
LekaFEV [45]

Answer:

Step-by-step explanation:

\frac{6.4}{32}*100=\frac{640}{32}\\\\=20

=20%

7 0
3 years ago
Find the area and perimeter of each composite figure use 3.14 for pi round your answer to the nearest 10th
Ad libitum [116K]

1. Perimeter is 3 + 3 +3 +4 +5 = 18 feet

  Area = 3*3 = 9, 1/2*3*4 = 6, 9 + 6 =15 square feet

2. perimeter = 2.5 +2.5+ 2.5+2.5+0.5+0.5 = 11 meters

   Area = 3*.5 = 1.5, 3*2=6,  6+1.5 = 7.5 square meters

3. perimeter = 3.14*2*3 = 18.84 +8 = 26.8 inches

   Area = 6*4 = 24 + 3.14*3^2 = 28.26 = 28.26 +24 = 52.3 inches

4. surface area = 2*π*6*20+2*π*6^2= 980.2 yards

Volume = π*6^2*20 = 2261.9 cubic yards

5.surface area = 2*(9*7+2*2+2*9) = 190 cm

 Volume = 2*7*9 = 126 cubic cm

6. surface area = <span>2*(11*11+11*11+11*11) = 726 mm</span>

<span>  Volume = 11 *11*11 = 1331 cubic cm</span>


7 0
3 years ago
I need help with this PLZ!!!!!!!​
garri49 [273]

Answer:

3. 91.125

4. 30.375

Step-by-step explanation:

just multiply all of the sides

MARK ME BRAINLIEST

3 0
3 years ago
Read 2 more answers
Which graph shows the solutions for the inequality x&gt;-2 ?
zhannawk [14.2K]
I think it’s c bc it’s asking for greater than or equal too
4 0
2 years ago
Other questions:
  • Use the given graph to estimate the value of each derivative. (Round all answers to one decimal place.)
    14·1 answer
  • 3x-2 less than or equal than 7
    11·1 answer
  • How many cubes with 5-inch sides will completely fill a cube that is
    13·1 answer
  • Please help! ive been stuck on subtracting fractions . i'll mark brainliest &amp; 20 points
    11·1 answer
  • A y=cos(x+pi/2)<br> B y=cos(x+2pi)<br> C y=cos(x+pi/3)<br> D y=cos(x+pi)
    8·2 answers
  • What is the average (with 0 decimal places) across all schools for the total score? Group of answer choices 1287 1215 1221 1229
    7·1 answer
  • What is the order of rotational symmetry for the figure?<br> A. 3<br> B. 1<br> C. 2<br> D. 4 or more
    14·2 answers
  • What are the answers
    15·1 answer
  • Please help I'll give Brainliest urgent!!!!!!!!!!!!!
    15·2 answers
  • Reasoning A store sells packages of comic books with a poster. A poster and 8 comics cost $14.75. A poster and 16 comics cost $2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!