the scientific notation for 0.089 is 0.089 = 8.9 x 10-2
Answer:
The solution is x =2 for the given equation 
Step-by-step explanation:
We need to find the solution for x in the given equation.
Solving:
Subtract 
from both sides
Taking square on both sides
Putting values and solving
Verifying the solution by putting values of x in given equation
Putting x=18
So, x=18 is not solution o given equation.
Putting x = 2
So, x=2 satisfies the equation
The solution is x =2 for the given equation
Answer:
question 67-the answer is Rory has eaten 1 1/4 of all the chocolate he has been given.
question 68-answer A-30 degrees
Step-by-step explanation:
question 67:
first Rory ate 1/2 of his chocolate
then, his sister gave him another whole chocolate bar an hour later.
that is 1/2+1=1 1/2--3/2/2=3/4
add 3/4 and 1/2--3/4 1/2~2/4--2/4+3/4=5/4 or 1 1/4
so the answer is 1 1/4
question 68:
if you draw a base to connect the last side of the angle into a triangle, you find that all three sides are equal, making the triangle an equilateral triangle. An equilateral triangle's angles all equal 30 degrees.
so, the answer is answer A: 30 degrees
Answer:
"a" is a zero and -b is a zero
Step-by-step explanation:
Answer:
10. X=3
11. FG=15
12. QS=34
Hope this helps
Step-by-step explanation:
10. 8x+11=12x-1
8x-12x=-1-11
-4x=-12
x=3
11. 11x-7=3x+9
11x-7=-9+7
8x=16
x=2
Substitute the (x)
11(2)-7 =15
12. 5x-3=21-x
5x+x=21+3
6x=24
x=4
Substitute the (x)a
5(4)-3=17
21-(4)=17
17+17=34
