Is that supposed to be x squared, or x times 2 in the beginning of the first one?
Answer:
Y=1/3
Step-by-step explanation:
X=k/y
So let's make k the subject of formula
k=xy
x=1,y=5
So let's substitute
k=1×5
k=5
So we are to determine the value for y when x is 15
So let's solve
Y=k/x
Y=5/15
Y=1/3
Y=0.333333~0.3
The discriminate formula is b^2+4ac so -5^2+4(1)(6)=49
Answer:
See Explanation
Step-by-step explanation:
The question has unclear information.
So, I'll answer from scratch
Given
ABC = Right angled triangle
DB bisects ABC
Required
Prove that CBD = 45
From the question, we have that:
ABC is right angled at B
So, when DB bisects ABC, it means that DB divides ABC into two equal angles.
i.e.
![CBD = ABD](https://tex.z-dn.net/?f=CBD%20%3D%20ABD)
and
![CBD + ABD = 90](https://tex.z-dn.net/?f=CBD%20%2B%20ABD%20%3D%2090)
Substitute CBD for ABD in ![CBD + ABD = 90](https://tex.z-dn.net/?f=CBD%20%2B%20ABD%20%3D%2090)
![CBD + CBD = 90](https://tex.z-dn.net/?f=CBD%20%2B%20CBD%20%3D%2090)
![2CBD = 90](https://tex.z-dn.net/?f=2CBD%20%3D%2090)
Divide both sides by 2
![\frac{2CBD}{2} = \frac{90}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2CBD%7D%7B2%7D%20%3D%20%5Cfrac%7B90%7D%7B2%7D)
![CBD = \frac{90}{2}](https://tex.z-dn.net/?f=CBD%20%3D%20%5Cfrac%7B90%7D%7B2%7D)
![CBD = 45](https://tex.z-dn.net/?f=CBD%20%3D%2045)
Hence, it is proved that ![CBD = 45](https://tex.z-dn.net/?f=CBD%20%3D%2045)
<em>Follow the above explanation and use it to answer your question properly</em>
Answer:
![4 \le x \le 6](https://tex.z-dn.net/?f=%204%20%5Cle%20x%20%5Cle%206%20)
Step-by-step explanation:
The rate of change is the slope. The rate of change is the greatest for the slope with the greatest absolute value. In the graph, this is shown with the steepest inclination. That occurs from x = 4 to x = 6.
Answer:
![4 \le x \le 6](https://tex.z-dn.net/?f=%204%20%5Cle%20x%20%5Cle%206%20)