Answer:
answer is down below
Step-by-step explanation:
u have ur two brackets.
(9b+3)(b-7)=0
take 1 bracket at a time
9b+3=0
solve it so:
9b+3=0
9b=-3
b= -3 / 9
<u>Ans: b=-1/3</u>
take the other bracket
b-7=0
solve it:
<u>Ans: b=+7 </u>
Y=10x+20
10x because the price is $10 a class
+20 because it costs $20 for the monthly subscription
Answer:
x=-56 y=80
Step-by-step explanation:
solved with delta way
Given:
Quadrilateral ABCD is inscribed in a circle P.
To find:
Which statement is necessarily true.
Solution:
Quadrilateral ABCD is inscribed in a circle P.
Therefore ABCD is a cyclic quadrilateral.
In cyclic quadrilateral, opposite angles form a supplementary angles.
⇒ m∠A + m∠C = 180° --------- (1)
⇒ m∠B + m∠D = 180° --------- (2)
By (1) and (2),
⇒ m∠A + m∠C = m∠B + m∠D
This statement is necessarily true for the quadrilateral ABCD in circle P.
Answer:
70 hours
Step-by-step explanation:
3500 by 50 is 70