5x-1 is greater than or equal to -11
Answer:
B. √50
Step-by-step explanation:
is 49 so √49 is 7
So,
since the <u>closest number to 49 is 50</u>, that is the answer.
Take the vector u = <ux, uy> = <4, 3>.
Find the magnitude of u:
||u|| = sqrt[ (ux)^2 + (uy)^2]
||u|| = sqrt[ 4^2 + 3^2 ]
||u|| = sqrt[ 16 + 9 ]
||u|| = sqrt[ 25 ]
||u|| = 5
To find the unit vector in the direction of u, and also with the same sign, just divide each coordinate of u by ||u||. So the vector you are looking for is
u/||u||
u * (1/||u||)
= <4, 3> * (1/5)
= <4/5, 3/5>
and there it is.
Writing it in component form:
= (4/5) * i + (3/5) * j
I hope this helps. =)
Answer: 2/5 of a pizza for for $6 offers the best deal.
Step-by-step explanation:
Pizzas are sold by fraction at Arnold's Pizzeria.
1)You can buy 1/6 of a pizza for $2.75. This means that the cost of a full pizza at this rate would be
6 × 2.75 = $16.5
2) 2/5 of a pizza for for $6, This means that the cost of a full pizza at this rate would be
6 × 5/2 = $15
3) 1/2 of a pizza for $8. This means that the cost of a full pizza at this rate would be 8 × 2 = $16
4) 2/3 of a pizza for $12. This means that the cost of a full pizza at this rate would be 12 × 3/2 = $18
Therefore, the best deal is 2/5 of a pizza for for $6
