Answer:
120
Step-by-step explanation:
18x8 is 124 but if you estimate then it is 120 bc 4 or less let it rest 5 or more add one more.
Answer:
$900
Step-by-step explanation:
the steps are above
Answer:
4/45
Step-by-step explanation:
First find all the pairs that make 9 that are two digit:
1+8
2+7
3+6
4+5
5+4
3+6
2+7
1+8
That's 8 pairs, and as there are 90 two digit numbers, 8/90 is the answer. but if you want to simplify, the answer is 4/45
There are several ways, but the general format follows f(x) = ax2 + bx + c f(x) = ax² + bx + c, where A, B, and C are non-zero numbers. Another way of finding a quadratic equation is examining the graph of it, you'll notice a "U" shape called a parabola, which come in many shapes but they all retain a "U"-like curve.
First isolate
by subtracting 1 from both sides of the equation.
That gives you
.
From here, since x is being divided by 2, multiply both sides of the equation by 2.
So <em>x = 10</em>.
Work is attached in the image below.