Answer:
The answer is y = ± ![\sqrt[4]{\frac{x}{4}}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7Bx%7D%7B4%7D%7D)
, 
is a function ⇒ 1st answer
Step-by-step explanation:
Let us revise the steps of find the inverse of a function
- Replace f(x) with y
- Replace every x by y and replace y by x
- Solve the equation in Step 2 for y
- Replace y by
∵ 
- Replace f(x) by y
∴ 
- Replace y by x and x by y
∴ 
- Divide each side by 4
∴ 
- Take ![\sqrt[4]{}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%7D)
for both sides
∴ ± ![\sqrt[4]{\frac{x}{4}}=y](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7Bx%7D%7B4%7D%7D%3Dy)
- Switch the two sides
∴ y = ±
∵ There is no fourth root for negative number
∴ x ≥ 0
When you test the graph of by a vertical line, it will cut it just at one in every position, so it is a function. Look to the attached graph for more understand
∴ is a function
The answer is y = ± , is a function
Answer:
yes, the centroid is where the medians meet
<em>hope this helps!</em>
<em>have a great day :)</em>
Answer:
10.85
Step-by-step explanation:
So with the ratio of 5 to 7.75 you would set up an equivalent ratio of 7 to ? to find your answer for? You do 5/7.75 and 7/? And cross multiply then divide the coefficient by itself on the side with the variable
5.8 x 2.19
= (5.00 + 0.80) x (2.00 + 0.19)
= 5.00*2.00 + 5.00*0.19 + 0.80*2.00 + 0.80*0.19
= 10.00 + 0.95 + 1.60 + 8/10 * 19/100
= 10.00 + 0.95 + 1.60 + (8*(10+9))/1000
= 10.00 + 0.95 + 1.60 + (80+72)/1000
= 10.00 + 0.95 + 1.60 + 152/1000
= 10.000 + 0.950 + 1.600 + 0.152
= 11.600 + 0.950 + 0.152
= 12.550 + 0.152
= 12.702
Hope this helps!
