Answer:
Option (4)
Step-by-step explanation:
Let x = ![\sqrt[4]{7}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B7%7D)
![\sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}\times \sqrt[4]{7}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D%5Ctimes%20%5Csqrt%5B4%5D%7B7%7D)
= (x)(x)(x)(x)
= 
= x⁴
Now we substitute the value x =
x⁴ = ![(\sqrt[4]{7})^4](https://tex.z-dn.net/?f=%28%5Csqrt%5B4%5D%7B7%7D%29%5E4)
x⁴ = 7
Therefore, Option (4) will be the answer.
Answer:
<h2>f(-10) = -75</h2>
Step-by-step explanation:
F(x) is simply another way of saying y. We are given the x value of -10. We can substitute this in for x and find y.
f(-10) = 7(-10) - 5
f(-10) = -70 - 5
f(-10) = -75
Answer:
So you make a number line right, and make from 0 to 1. You would put 8 dashes between 0 and 1. Once you finished that, you would go to the third dash, and that will be 3/8 on a number line.
Step-by-step explanation:
I hope this helps! :)
<u>Answer:</u>
<u>Distance:</u> 6x + 15.5y > 55.5
<u>Time:</u> x + y > 4.5
<u>Step-by-step explanation:</u>
We are given that Martha is training for a duathlon and she covered a total distance of over 55.5 miles in more than than 4.5 hours of training.
Also, she runs at a speed of 6 mph and bikes at a rate of 15.5 mph.
We are to write inequalities representing the distance she traveled and the total time she spent training.
<u>Distance:</u> 6x + 15.5y > 55.5
(formula for distance = speed x time so speeds for running and biking are multiplied by their number of hours)
<u>Time:</u> x + y > 4.5
(she trained for more than 4.5 hours, x hours for running and y hours for biking.
Answer:
-3
Step-by-step explanation:
4x+1=2x-5
-1 -1
4x= 2x-6
-2x -2x
2x=-6
/2 /2
x=-3
