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3 years ago

Which graph or graphs appear to show a sinusoid ?

Mathematics

2 answers:

sergey [27]3 years ago

6 0

<h2>Answer:</h2>

Option: D is the correct answer.

D. I and III only

<h2>Step-by-step explanation:</h2>

The graph of a sinusoidal function is a smooth periodic graph.

The graph is continuous all over the x-axis and also it repeats itself after every fixed interval.

From the graph that is provided to us we observe that the graph I is a sinusoidal graph since it is similar to a graph of sine graph.

Also, the graph II is not a continuous graph and hence it can't be a graph of sinusoidal graph.

Also, graph III is similar to a graph of sine function and hence it represent a graph of a sinusoidal graph.

Mnenie [13.5K]3 years ago

5 0

Answer:

Step-by-step explanation:

Sinusoid graphs look like regular waves.

It is obvious that only I and III look like waves.

II is known as a stepwise function.

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Write and solve a proportion to answer the question.<br><br> 36 is 0.9% of what number w?

USPshnik [31]

The question can be written out like this:
36 = 0.009x

Multiply both sides by 1,000:
9x = 36,000

Divide both sides by 9:
x = 4,000

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3 years ago

Geometry please answer

nika2105 [10]

Answer: 8

Step-by-step explanation:

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2 years ago

Point A is the midpoint of side XZ and point B is the midpoint of side YZ. Triangle X Y Z is cut by line segment A B. Point A is

AveGali [126]

Answer:

<h3>B. 4units</h3>

Step-by-step explanation:

Find the diagram attached. The diagram is a similar triangle.

From the diagram, XZ/XY = CA/AB

Given XZ = 2x-2+2x-2 = 4x-4

XY =5x-7

CA = 2x-2

AB= x+1

On substituting this parameters into the formula to get x first

4x-4/5x-7 = 2x-2/x+1

cross multiply

(4x-4)(x+1) = 5x-7(2x-2)

open the parenthesis

4x²+4x-4x-4 = 10x²-10x-14x+14

4x²-4 = 10x²-24x+14

10x²-4x²-24x+14+4 = 0

6x²-24x+18 = 0

x²-4x+3 = 0

x²-3x-x+3 = 0

x(x-3)-1(x-3) =0

(x-3)(x-1) = 0

x = 3 and 1

Next is to get length AX.

Given AX = 2x-2

Substitute x = 3 into the expression

AX = 2(3)-2

AX = 6-2

AX = 4 units

Hence the measure of length AX is 4 units

4 0

3 years ago

Multiplying by which number is equivalent to an increase of 23% ?

brilliants [131]

Answer:

1.23

Step-by-step explanation:

<u>Increase by 23%</u>

x + 23% of x =
x + (23/100)x =
x + 0.23x =
(1 + 0.23)x =
1.23x

1.23 is the answer

5 0

3 years ago

Alan sells electronics, earning a base wage of $320 for one week, and a commission equal to 5% of his sales. he needs to earn at

aksik [14]

Answer:

320 +0.05s ≥ 600
sales ≥ $5600

Step-by-step explanation:

For sales of 's', Alan's earnings will be ...

320 +0.05s

He wants that to be at least 600, so the inequality is ...

320 +0.05s ≥ 600

Its solution is found by subtracting 320 and dividing by 0.05.

0.05s ≥ 280

s ≥ 5600

Alan's weekly sales must be at least $5600 for his earnings to cover his expenses.

5 0

4 years ago