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
Sladkaya [172]
3 years ago
7

Can you please help with this question

Mathematics
1 answer:
dexar [7]3 years ago
5 0
The surface area of a cube is simply the area of one face multiplied by 6, since all of the 6 faces are exactly the same, therefor:
Surface area = 5*5*6 = 150 ft^2
You might be interested in
Use the quadratic formula to complete the table. To verify your solutions, graph the equations.
Anna007 [38]

Answer:

1) Value of Discriminant: -32

Solution Value(s):

x = -2/3 + 2√2i/3

x = -2/3 - 2√2i/3

2) Value of Discriminant: -44

Solution Value(s):

x = -1/3 + √11i/3

x = -1/3 - √11i/3

Step-by-step explanation:

The Discriminant is the part of the Quadratic Formula that is under the square root symbol.

If the Discriminant > 0 there are 2 real solutions.

If the Discriminant = 0 there is 1 real solution.

If the Discriminant < 0 there are 2 imaginary solutions.

Equation 1:

3x² + 4x + 4 = 0

Plug this into the Quadratic Formula and solve:

x = -4 ± √-32 all over 6

Value of Discriminant: -32

Obviously, this can be simplified more, but for now, all you need is what is under the square root. Since it is less than 0, there are going to be 2 imaginary solutions.

Continue simplifying to get to the Solution Values. You will end up here:

x = -2/3 ± 2√2i/3

Your two imaginary solutions are:

x = -2/3 + 2√2i/3

x = -2/3 - 2√2i/3

*Note: 2√2i is ALL over 3, not just the √2i*

You can convert this to decimal if you need (but I don’t suggest it):

x = -0.66666 + 0.942809i

x = -0.66666 - 0.942809i

Equation 2:

3x² + 2x + 4 = 0

Plug this into the Quadratic Formula and solve:

x = -2 ± √-44 all over 6

Value of Discriminant: -44

Obviously, this can be simplified more, but for now, all you need is what is under the square root. Since it is less than 0, there are going to be 2 imaginary solutions again.

Continue simplifying to get to the Solution Values. You will end up here:

x = -1/3 ± √11i/3

Your two imaginary solutions are:

x = -1/3 + √11i/3

x = -1/3 - √11i/3

You can convert this to decimal if you need (but I don’t suggest it):

x = -0.33333 + 1.10554i

x = -0.33333 - 1.10554i

Hope this helps!

4 0
3 years ago
The dimensions of Amy’s rectangular garden are 15 feet by 12 feet. Amy wants to buy flowers to improve the appearance of her gar
ser-zykov [4K]

Answer:

  $50.40

Step-by-step explanation:

The garden has an area of ...

  (15 ft)(12 ft) = 180 ft²

Amy wants to cover 1/4 of that with flowers, so the area devoted to flowers is ...

  (1/4)(180 ft²) = 45 ft²

The cost for each square foot is $1.12, so the cost of the flowers will be ...

  ($1.12/ft²) × 45 ft² = $50.40 . . . . cost to cover 1/4 of the garden with flowers

4 0
3 years ago
Read 2 more answers
What is the sum of the interior angles of the polygon shown below?
Yanka [14]

Answer:

540 degrees

Step-by-step explanation:

The formula to find the sum of interior angles in any polygon is the following:

S=180(n-2)

Where (n) represents the number of sides in the polygon. In this case, the polygon has (5) sides, therefore substitute (5) in place of (n) and solve;

S=180(n-2)\\\\S=180(5-2)\\\\S=180(3)\\\\S=540

4 0
3 years ago
Help plzz be serious
Rzqust [24]

Answer: 864

Step-by-step explanation:

mulitiply all

5 0
3 years ago
The volume of a rectangular prism can be computed using the formula V = lwh.
olganol [36]

Answer:

13cm

Step-by-step explanation:

substitute values we have into the formula:

1664 = 16 x w x 8

rearrange:

1664/16×8 = w

which equals 13

3 0
2 years ago
Read 2 more answers
Other questions:
  • Sam can spend no more than $75 on school supplies. he has to spend $12 on paper and pencils. what is the maximum amount sam can
    11·2 answers
  • If 20 percent of 40 percent of a number is 10 greater than half the number, what is the number?
    8·2 answers
  • What is the probability he will choose one green marble and then one red marble? Express the probabilities in fraction form.
    8·1 answer
  • HELP ASFAST AS POSSIBLE. What ratio is equivalent to 40%.
    5·1 answer
  • Calculate the slope of the line through the points V(- 6, 0) and U(4, - 2
    12·1 answer
  • What is the value of x?​
    13·1 answer
  • Pleaseee help ill mark brainliest
    12·1 answer
  • I need help please ?!!!!!
    5·1 answer
  • Question 9/30 If ADD = 81, BAD = 49, and CAD = 64. then what is the value of ADA?​
    5·1 answer
  • 3 x 10 + 2 x 1 + 6 x 1|100 + 4 x 1|1,000 is the expanded form of which decimal?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!