MATHEMATICS HIGH SCHOOL

Which number is the largest?
A) 1.81
B) 1.08
C) 1.801

Answers

Answer 1
Answer: A) 1.81...............
Answer 2
Answer: 1.81 is the largest.

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Calculate sin a=0.34

Answers

sina=0.34 has already been calculated for us, but to calculate the angle, which is what I'm assuming you want to know, we must take the inverse trigonometric function of sin. 

From: sina=0.34, we can derive that:

a=sin ^(-1) 0.34

Using a scientific calculator to solve this, we can see that the degrees that a is equal to (rounded to the nearest degree) is: 

a=20°

Wish you luck! :)

What is the value of the function f(x)=3(4-x) when x=7?

Answers

f(x) = 3(4 - x)
= 3(4 - 7)
= 3(-3)
= -9

Final answer:

The value of the function f(x)=3(4-x) when x=7 is -9. This is calculated by substituting x=7 into the function and simplifying.

Explanation:

To find the value of the function f(x)=3(4-x) when x=7, you should insert x's value into the equation. Therefore, the function takes the form: f(7)=3(4-7). Then you simplify it to: f(7)=3(-3) and further simplification gives: f(7)=-9.

Learn more about Evaluating Functions here:

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AC=A, C, equals
Round your answer to the nearest hundredth.

Answers

Answer:

We have the equation A*C = A

Now, as both sides of the equality are the same thing, we can do the same operation to both sides and the equality will remain true.

We can divide both sides by A and get:

(A*C)/A = A/A

C = 1

So here we finded the value of A.

If A and C are matrices, then C is the identity matrix.

The given statement is mathematically impossible, as there is no number that is equal to both itself and its opposite. Therefore, the answer is undefined.

In other words, there is no number that can be substituted for both A and C in the equation AC = A, C to make it a true statement.

Here is a more detailed explanation:

If A is equal to zero, then C would also have to be equal to zero. But this would mean that AC = 0, which is not equal to A, C.

If A is any other number, then C would have to be equal to the negative of A. But this would mean that AC = -A, which is not equal to A, C.

Therefore, there is no solution to the equation AC = A, C.

For such more question on undefined:

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Circle B has an area of 675 sq meters. What is the diameter of Circle B.

Answers

Answer:

area = \pi {r}^(2)

675= 3.14× r²

r²= 675/ 3.14

r²=214.968

r = √(214.968)

radius=14.66 meters

diameter= 2× radius

diameter= 2× 14.66

diameter = 29.32 meters

Compare and contrast the absolute value of a real number to that of a complex number.

Answers

The absolute value of a real number is a positive value of the number. Which means that the absolute value is the distance from zero of the number line. However, that of the complex numbers is the distance from the origin to the point in a complex plane. 

The definition of complex, real and pure imaginary number is as follows:

A \ \mathbf{complex \ number} \ is \ written \ in \ \mathbf{standard \ form} \ as:\n \n \ (a+bi) \n \n where \ a \ and \ b \ are \ real \ numbers. \ If \ b=0, \ the \ number \ a+bi=a \n is \ a \ \mathbf{real \ number}. \ If \ b\neq 0, \ the \ number \ (a+bi) \ is \ called \ an \n \mathbf{imaginary \ number}. \ A \ number \ of \ the \ form \ bi, \ where \ b\neq 0, \n is \ called \ a \ \mathbf{pure \ imaginary \ number}

The absolute value of this number is given by:

|a+bi|=\sqrt{a^(2)+b^(2)}

So, the absolute value of a complex number represents the distance between the origin and the point in the complex plane. On the other hand, the absolute value of a real number means only how far a number is from zero without considering any direction.

Find the value of x. m<2= x + 52​

Answers

Answer: x = - 10

Step-by-step explanation:

a) Linear Pair: 138 + ∠a = 180°     --> ∠a = 42°

b) Triangle Sum Theorem: ∠a + 2∠b = 180°   --> ∠b = 69°

c) Vertical Angles Theorem: ∠b = ∠c     --> ∠c = 69°

d) Congruent sides implies congruent angles: ∠c = ∠d   --> ∠d = 69°

∠2) Triangle Sum Theorem: ∠c + ∠d + ∠2 = 180°

                                            69° + 69° + ∠2 = 180°

                                                               ∠2 = 42

x) m∠2 = 42

  x + 52 = 42

  x          = -10
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