Answer:
Yes, it is divisible by 9
Step-by-step explanation:
10^3 is equal to 10*10*10 = 1000
If 1 is substracted, the result is 999
999 / 9 = 111
So 10^3 - 1 is divisible by 9
Answer:
22°
Step-by-step explanation:
angles in a triangle sum upto 180°
100+58+<b=180
<b=180-158
<b=22°
To solve the give logarithm we proceed as follows;
log7(3x^3+x)-log7(x)=2
this can be written as:
log7[(3x^3+x)/(x)]=2
but;
log7(49)=2
thus;
log7(3x^3+x)/x=log7(49)
hence canceling log7 we get:
(3x^3+x)/x=49
This can be simplified further to get:
3x^2+1=49
3x^2=49-1
3x^2=48
x^2=48/3
x^2=16
getting the square root of both sides we get:
x=4
the answer is x=4
48/4 = 12 teaspoons per each batch
454/12 = 37.83 batches can be made
3.49/37.83 = 0.092$ per each batch
Refrection of (-20, 4) across x-axis gives (-20, 4) = (-20, -4)
Refrection of (-20, 4) across y-axis gives (20, 4)
Refrection of (-20, 4) across y = -x gives (20, -4)
Refrection of (-20, 4) across y = 7 gives (20, 10)
