MATHEMATICS HIGH SCHOOL

Simplify.i^68

A. -i

B. 1 (I think it's B, please tell me if it's right or not. Thank you.)

C. -1

D. i

Answers

Answer 1
Answer:

Answer:

B. 1

Step-by-step explanation:

Isolate i on one side of the equation.

First, use exponent rule.

\displaystyle \mathsf{A^B^C=(A^B)^C}}

\displaystyle \mathsf{(I^2)^3^4=I^6^8}}

\displaystyle \mathsf{(I^2)^3^4}}

Solve. (by imaginary number rule.)

i²=-1

(-1)³⁴

=1³⁴

1³⁴=1

=1

\Large\boxed{\mathsf{\Rightarrow 1}}}

In conclusion, the final answer is (B.) 1.

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Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2?A. y = –0.75x; 1.50
B. y = –1.33x; 2.67
C. y = 1.33x; –2.67
D. y = 0.13x; –0.25

Answers

Given:
y varies directly with x
y = 8 when x = -6

what is the value of y when x = -2?

y = kx

we need to get the constant of variation.
8 = k(-6)
8/-6 = k
4/-3 = k or - 1 1/3

y = -4/3 (-2)
y = (-4*-2) / 3
y = 8 / 3
y = 2 2/3 OR 2.67

The correct answer is Choice B. y = -1.33x ; 2.67

1. Raymond is repairing wires on a radio broadcast tower. He is in a basket of the repair truck40m from the tower. When he looks up, he estimates the angle of elevation to the top of the
tower as 42°. When he looks down, he estimates the angle of
depression to the bottom of the tower as 32°. How high is the tower
to the nearest tenth of a metre?

Answers

The required height of the tower is given as 61 meters.

What are trigonometric equations?

These are the equation that contains trigonometric operators such as sin, cos.. etc.. In algebraic operation.

What are Pythagorean triplets?  

In a right angled triangle, its side, such as hypotenuse, perpendicular and base  is Pythagorean triplets.

here,
To determine the height of the tower,
h = 40 tan 32° + 40 tan 42°
h = 61 m

Thus, the required height of the tower is given as 61 meters.

Learn more about trigonometry equations here:

brainly.com/question/22624805

#SPJ2

Answer:

Step-by-step explanation:

h = 40 tan 32° + 40 tan 42° ≈ 61.0 m

Select all statements that are true about the linear equation.y=4x−3

The graph of the equation is a single point, representing one solution to the equation.

The point (1, 1) is on the graph of the equation.

4x−y=−3 has the same graph.

Since the point (0, −3) is a solution to the equation, it is on the graph of the equation.

The graph of the equation is the set of all points that are solutions to the equation.

Answers

The correct answer for this question would be:

"The graph of the equation is the set of all points that are solutions to the equation."

"The point (1, 1) is on the graph of the equation."

And "The point (0, -3) is on the graph of the equation."

- I just took the test.
For point (1, 1): 1 = 4(1) - 3 = 4 - 3 = 1.
Therefore, the point (1, 1) is on the graph of the equation.

Since the point (0, −3) is a solution to the equation, it is on the graph of the equation.

The graph of the equation is the set of all points that are solutions to the equation.

65% of 152 estimated

Answers

65% × 152 = 98/4/5

anything to ask please pm me

1 - 4 + 2x + 4= 13

What does 'x' equal?

Please give reasonable answer

Answers

x = 6 
CMON MAN THIS IS 5th GRADE MATH!!

A 7-foot tall stop sign creates a shadow that is 2 feet long. At the same time, a utility pole creates a shadow that is 9.6 feet long. How tall, in feet, is the utility pole?

Answers

Answer:

33.6

Step-by-step explanation:

Divide 9.6 by 2

9.6/2

4.8

Multiply that by 7

4.8x7

33.6 feet tall
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