Answer:
Option 3
Step-by-step explanation:
All equations are in slope-intercept form. 
The 'm' is the slope.
The 'b' is the y-intercept.
The slope is also known as the rate of change. So, we would have to look at what replaces 'm' and select two equations that have the same rate of change.
<em>Let's look over the equations:</em>
<h3>Equation A:</h3>
In this equation, 0.3 replaces 'm', so the rate of change for this equation is 0.3.
<h3>Equation B:</h3>
In this equation, 3 replaces 'm', so the rate of change for this equation is 3.
<h3>Equation C:</h3><h3>
</h3>
In this equation, 0.3 replaces 'm', so the rate of change for this equation is 0.3.
<h3>Equation D:</h3><h3>
</h3>
In this equation, 0.03 replaces 'm', so the rate of change for this equation is 0.03.
Equation C and equation A have 0.3 as the slope. Since the question asks for two equations that have the same rate of change, the answer would be Equations A and C, or Option 3.
Answer:
pi/2
Step-by-step explanation:
Arccos(tan(0))
Arccos( 0) since tan(0)=0
Arccos(0)=pi/2 since cos(pi/2)=0 and the restricted domain of cosine is [0,pi].
Answer:
All the right triangles will be similar.
Step-by-step explanation:
See the attached diagram.
Let us assume any two right triangles are drawn on the line OP, and AB and A'B' as the hypotenuse on the same line OP.
Since the slope of the line OP is constant and assume that it makes x° with the positive x-axis.
Hence, 
⇒ 
Therefore, the sides of the two right triangles are in the same ratio and hence, Δ ABC and Δ A'B'C' are similar.
Hence, all the right triangles will be similar. (Answer)
Answer: $8.88
Assuming its 8:00am to 4:15pm and took a 1 hour break then he worked for a total of 7 hours and 15 minutes. In decimals that would be 7.25 hours. We want to find how much he makes in 1 hour. So, because we want to find 1 hour we divide the hours by 7.25 and the money by 7.25.
64.38 / 7.25 = 8.88.
There for, he makes $8.88.
Answer: 23 Dollars
Explanation: First you take 15% and turn it into a decimal, 0.15. Then you times 20 and 0.15 and you get the product of 3. Now you do 3+20 and get your answer of 23.
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