The value of k=1
Explanation the perfect square is 9x2+6x+k=(3x+k)2.=9x2+6x/k+k2.comparing the 2 sides
Answer:
Step-by-step explanation:
So we have direct proportions here.
So
715=11
845=x
845*11/715
x=13
To check our work.
715/11=65
65*13=845.
Basically, in this formula, you use cross multiplication. So A*B=B*A. B and B go together and A and A go together/
So we can use the formula x = b*b/a. Since A is one of the A's and the other value of A is missing, we can use this formula to find it.
Hope this helped, ask me if you have any questions.
Answer: d
Step-by-step explanation:
Answer:
$6.50
Step-by-step explanation:
Let the cost of a bowl and a jug be $b and $j respectively.
3b +j= 13.70 -----(1)
j= b +4.10 -----(2)
Substitute (2) into (1):
3b +b +4.10= 13.70
4b +4.10= 13.70 <em>(</em><em>simplify</em><em>)</em>
4b= 13.70 -4.10 <em> (-4.10 on both sides)</em>
4b= 9.60
b= 9.60 ÷4 <em>(÷4 on both sides)</em>
b= 2.40
Substitute b= 2.40 into (2):
j= 2.40 +4.10
j= 6.50
Thus, the jug costs $6.50.
Answer:
Pythagorean Theorom: a^2+b^2=c^2
Take the largest number of each as C (hypotenuse)
<u>3,4</u><u>,</u><u>5</u>
(3)^2+(4)^2= (5)^2
25=25
Therefore it is a Pythagorean Triple.
<u>8,15,17</u>
(8)^2+(15)^2=(17)^2
289=289
Therefore it is a Pythagorean Triple.
