Answer:
-6
Step-by-step explanation:
Please mark as Brainliest! :)
After staring at this for a few seconds, I think the equation
![-5\sqrt{10}\cdot\sqrt{15}=[1]\sqrt{[2]}](https://tex.z-dn.net/?f=-5%5Csqrt%7B10%7D%5Ccdot%5Csqrt%7B15%7D%3D%5B1%5D%5Csqrt%7B%5B2%5D%7D)
is asking you to simplify the left hand side so that it has a form matching the right hand side, and [1] and [2] are placeholders. My guess is that they're supposed to be integers.
Notice that



Then multiplying by -5, we have

so I believe [1] = -25, and [2] = 6.
Answer: 43
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
12.56/3.14=4 which you the square root to get 2. The add 2+2 to get your diameter of 4.
Answer:
g(x) = 3
Step-by-step explanation:
Simply substitute -4 in for x in the equation (as you can see -4 takes the place of x in g(-4), so just do the same thing for all of the other x's in the equations). Therefore, g(-4) = (-4) + 7. Well, since -4 is negative and 7 is positive, you can think of it as 7 - 4, which gets you 3. Voila! 3 is your answer :)