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
neonofarm [45]
3 years ago
14

Is there a real number whose square is −1? a. Is there a real number x such that ? b. Does there exist such that x2 = −1?

Mathematics
1 answer:
Sauron [17]3 years ago
5 0

Answer:

a.x^2=-1

b.a real number x

Step-by-step explanation:

We are given that  statement.

We have to rewrite the given statement using variable or variables.

Statement:Is there a real number whose square is -1.

a.Let x bet the real number

The square of real number x written as x^2

According to question

x^2=-1

Therefore,

Is there a real number x such that x^2=-1

b.Does there exist a real number x such that

x^2=-1

You might be interested in
A semicircular archway is built in front of a garden using 8 congruent granite tiles, as shown in the diagram. Find the area of
iris [78.8K]
Given: 
8 tiles
radius from the center of the archway to the inner edge of the tile. 7 ft.
radius from the center of the archway to the outer edge of the tile. 8 ft = 7 ft + 1 ft.

Area of a semi circle = π r² / 2 
A = (3.14 * (7ft)²) / 2 = (3.14 * 49ft²) / 2 = 153.86 ft² / 2 = 76.93 ft²
A = (3.14 * (8ft)²) / 2 = (3.14 * 64ft²) / 2 = 200.96 ft² / 2 = 100.48 ft²

100.48 ft² - 76.93 ft² = 23.55 ft²
23.55 ft² / 8 tiles = 2.94 ft² per tile.
3 0
3 years ago
Someone please help me with two answer choices
otez555 [7]

Answer:

It is the first and the last three.

7 0
3 years ago
What is the area of this figure?
ludmilkaskok [199]

Answer:

          \large\boxed{\large\boxed{42 unit^2}}

Explanation:

The figure is not a regular hexagon. It is an irregular hexagon.

Please, find attached the picture with the original question and the figure.

You can split the figure into two triangles and one rectangle.

The rectangle has dimensions: 7units × 4units, thus its area is 28 units².

Both the upper triangle and lower triangle have base 7 units and height 2 units.

Hence the area of each triangle is:

       area=(1/2)base\times height

       

      area=(1/2)7units\times 2units = 7units^2      

Hence, the area of the hexagon is:

           28units^2+7units^2+7units^2=42units^2

3 0
4 years ago
Find a function ω(x) such that the function f(x) = sin(ω(x)) has the roots at π, π2
atroni [7]

So, I came up with something like this. I didn't find the final equation algebraically, but simply "figured it out". And I'm not sure how much "correct" this solution is, but it seems to work.

f(x)=\sin(\omega(x))\\\\f(\pi^n)=\sin(\omega(\pi^n))=0, n\in\mathbb{N}\\\\\\\sin x=0 \implies x=k\pi,k\in\mathbb{Z}\\\Downarrow\\\omega(\pi^n)=k\pi\\\\\boxed{\omega(x)=k\sqrt[\log_{\pi} x]{x},k\in\mathbb{Z}}

8 0
3 years ago
Is the value 75+(-75) less than zero, equal to zero, or greater than zero?
KIM [24]
75 - 75 = 0, therefore, your answer is equal to zero

hope this helps
3 0
3 years ago
Other questions:
  • Please help ASAP 20 pts + brainliest to right/best answer
    12·1 answer
  • What is midpoint 85 90?
    13·1 answer
  • Need help fast,please!
    15·1 answer
  • Please answer A B C or D:
    9·1 answer
  • What is 0.25 divided by 1.5
    7·2 answers
  • If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?
    12·1 answer
  • Plz help will mark brainliest
    14·1 answer
  • Paige rode her bike 4/5 mile. Megan rode her
    5·1 answer
  • 1 Krista has 10 cups of gelatin. If each bowl holds 3 cup, how many bowls can she fill?​
    14·1 answer
  • Using the law of cosines, write an algebraic proof to show that the angles in an equilateral triangle must equal 60°. Use "∧" to
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!