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
Ostrovityanka [42]
3 years ago
5

What is cos 45º?See picture for more details ​

Mathematics
2 answers:
madreJ [45]3 years ago
7 0

Answer:

C. 1/√2

Step-by-step explanation:

cos∅ is adjacent over hypotenuse:

cos45° = 1/√2

cos45° = √2/2

Alternatively, if you learned and memorized your unit circle, cos(π/2) = √2/2

DaniilM [7]3 years ago
4 0

Answer:

C.

Step-by-step explanation:

You might be interested in
How can you tell when a quadratic equation has two identical, rational solutions?. a:when the radicand is negative. b:when the r
sergey [27]
"When the radicand equals zero" is the one among the following choices given in the question that you can tell when <span>a quadratic equation has two identical, rational solutions. The correct option among all the options that are given in the question is the fourth option or option "d". I hope the answer has helped you.</span>
4 0
2 years ago
Read 2 more answers
I need this by the end of the hour please help my Geometry brainliest plus 50 points...
goldfiish [28.3K]
Part b is 1: (4 and 1)
3 0
3 years ago
Read 2 more answers
Please help ASAP picture below
Ostrovityanka [42]

Answer:

Picture is blurr. kindly upload clear pic

7 0
3 years ago
Read 2 more answers
A box is to be made where the material for the sides and the lid cost​ $0.20 per square foot and the cost for the bottom is ​$0.
Reika [66]

Answer:

The dimension of the box is l×w×h =  (2.274 × 2.274 × 1.934) ft³

Step-by-step explanation:

From the given information;

Let a be the cost of the box

Let b  be one side of the square base ;    &

h to be the height  of the box

We know that the volume of the box = 10 cubic feet

Then;

a²h = 10

h = 10/a²

The base = (0.65)a²

The top = (0.2)a²

The side = (0.2) a × 25/a²

= 5/a

For the four sides of the box now ;

= (0.2) 4a × 25/a²

= 0.8  × 25/a

= 20 /a

The total cost of the box is:

b = 0.65a² + 0.2a² + 20 /a

b = 0.85 a² + 20 /a

Taking differential of b with respect to a ;we have:

db/da = 1.7a - 1/a²(20) = 0

1.7 a³ - 20 = 0

1.7 a³  = 20

a³ = 20/1.7

a³ = 11.77

a = \sqrt[3]{11.77}

a = 2.274 ft

Thus; the cost for the base of the box = (0.65)a²

the cost for the base of the box =(0.65) × ( 2.274)²

the cost for the base of the box = 3.362

The top of the box = (0.2)a²

The top of the box = (0.2)× ( 2.274)²

The top of the box = 1.034

The four sides of the box = 20 /a

The four sides of the box = 20/2.274

The four sides of the box = 8.795

the total cost = b = 0.85 a² + 20 /a

the total cost = 0.85 (2.274)² + 20 /2.274

the total cost = 4.395 + 8.795

the total cost = 13.19

Recall that:

the volume of the box = 10 cubic feet

Then;

a²h = 10

h = 10/a²

h = 10/ 2.274²

h  1.934

The dimension of the box is l×w×h =  (2.274 × 2.274 × 1.934) ft³

7 0
3 years ago
NEED HELP ASSAP 100 POINTS WILLL GIVE BRAINLIEST1Give me an example of how supply or demand affects price in the real world. 2Ho
Vanyuwa [196]

Answer to question 1:

When supply of a product goes up, the price of a product goes down and demand for the product can rise because it costs loss.

Answer to question 2:

Commercial banks play an important role in the financial system and the economy. ... They provide specialized financial services, which reduce the cost of obtaining information

Answer to question 3:

Government regulation affects the financial services industry in many ways, but the specific impact depends on the nature of the regulation. Increased regulation means a higher workload for people in financial services.

Answer to question 5:

Adam Smith because he was a Scottish economist, philosopher and author as well as a moral philosopher, a pioneer of political economy and a key figure during the Scottish Enlightenment, also known as ''The Father of Economics''.

7 0
3 years ago
Other questions:
  • The functions q and r are defined as follows.
    12·1 answer
  • Find the new price for the markdown given. Round to the nearest cent if necessary.
    15·1 answer
  • Line segment KI is tangent to crcle J at point K What is the length of the radius, ? O 8 unts O 10 units O 12 units O 16 units 2
    6·1 answer
  • Pre algebra help ( will give brainliest ) sorry if it's hard to see
    13·2 answers
  • Evan and Sam were playing basketball. Evan made 2/3 of his shots. Sam made 2/4 of his shots. Who made more shots? Explain
    15·1 answer
  • I said 1000 divvied by 440 is 2.12 I got this wrong. I have to correct for homework. What did I do wrong and how can I solve it
    12·1 answer
  • If 1ml equals 100mg, how much ml is 1mg?
    9·1 answer
  • What is the perimeter of △ABC?<br> Round each step to the nearest tenth.
    7·1 answer
  • If the scale factor of figure A to figure B is 3:4 find the value of x
    5·1 answer
  • Cheryl and rodney are mixing yellow and blue paint to make green paint. The table shows how much of each color they use. Whose g
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!