Answer:
t = -4
Step-by-step explanation:
8t=−32
Divide each side by 8
8t/8 = -32/8
t = -4
For x/2 to be greater than or equal to 10, you must try out a few numbers.
If x = 20...
x/2 greater than or equal to 10
= 20/2 greater than or equal to 10
= 10 greater than or equal to 10.
So the answer for x is:
x = 20 or more
Hope this helps!!!
Explanation:
In order to prove that f is one-to-one and surjective, we can prove directly that f is bijective by findng .
To calculate the inverse of f, first we swap the variables x and y. Then we write y in values of x.
On this step it is important to separate what terms contain y and what terms do not. After that we can separate y as a factor
Thus, . Note that is well defined en every element of B, because it can be defined on any element different from 1, where the divider is zero.
An element of the form , for some x, is an element of A because it is different from -2. Lets suppose that there exist an x such as , thus 2x-1 = -2(1-x) = -2+2x, from where we conclude that 0 = -1, that is a contradiction. As a result, cant be equal to -2.
I hope this works for you!
Answer:
p=-3
Step-by-step explanation:
this is really simple
p+9=6
subtract 9 from both sides, so u can isolate P
p+9-9=6-9
p=-3
Answer check:
substitute the variable P
-3+9= 6
this equation can also be written as
9-3=6
for both the equation u get 6=6
so the answer is -3
Answer:
The two angles are 39°
Step-by-step explanation:
180 - 102 = 78. 78/2 = 39.