2x-10=2. (Answer=6)
2x=12 (you move the -10 to the other side of the equation to make it positive)
Then you divide by 2
2x divided by 2 equals x 12 divided by 2 is 6
So your number is 6. x=6
And you can check this by redoing the equation but putting 6 instead of x
2(6)-10=2
12-10=2
2=2
This equation is true therefore, your unknown number is 6
Answer:
C
Step-by-step explanation:
The inverse of the function would have the x-values and y-values swapped. To find the inverse of a function, the x('s) and the y('s) would be swapped. C is the only one with the x-values and the y-values swapped, and thus, is the correct answer.
I hope this helps. :)
Yes there is enough food, in fact there is enough for 6 weeks
A triangle adds up to 180 degrees so it would be 70
P.S. I think
P.P.S Sorry if its wrong
Answer:
25. If you look at angle B from the first figure you see a square that indicates a 90 degrees angle, thus the figure shown is a right triangle. You can also see that angle C is said to have 60 degrees. a right triangle has a total angle of 180 degrees. so, 180 - 90 - 60 = 30 degrees. Therefore, angle A is 30 degrees.
27. Now you want the measure of the hypotenuse, and you know this a right triangle. so, simply use the law of sines to find the measure of AC :
4cm/sin(60) = AC/Sin90
AC = 4.62 cm
29. angle z is in the other figure and same stuff, just substract the angles, you have 90 degrees and 30 degrees... 180 - 90 - 30 = 60 degrees
31. Angle Y = 90 degrees
this value is already given, it's the little square that indicates a 90 degrees angle.
26. 5 cm
28. 90 degrees
30. You already found AC, use the pythagorean theorem. sqrt((4.62)^2 - 4^2) = 2.31 cm
32. use pythagoras again, square root(5^2 - 3^2) = 4
So as you can see all the measurements are the same because if you see at the very top of your figures it says ABC = XYZ which means pretty much that they have the same values (notice that there is a little something added to the = sign, watch out for that because that's what indicates that two figures are equal in terms of angles and measures.
