Answer:
b=-20
Step-by-step explanation:
We will have to solve this question based on how the question is given
So let's solve the given question
2=7+b/4
To start by finding the LCM for the right side and the LCM is 4
2=28+b/4
Let's cross multiply
2×4=28+b
8=28+b
Let's make b the subject of formula by substrating 28 from both sides
-20=b
Therefore the final answer is b=-20
Answer : bru
Step-by-step explanation:
The equation is equivalent to x2/25 + y2/(25/<span>9)</span>= 1, it is an ellipse equation
the center is C(0,0)
a=5; b= 5/3, so a>b it is a horizontal major axis type (the x-axis)
all that you do is to find all characteristics by following all required formula
Answer:
a) -3
b) 117
c) 100
Step-by-step explanation:
(a) 2(1)²-5(1)
1²= 1
2×1= 2
2-5= -3
(b) 2(9)²-5(9)
9²= 81
81×2= 162
162-45= 117
(c) 2(4)²-5(4) +2(8)²-5(4)
4²=16
16×2= 32
32-20= 12
8²=64
64×2= 128
128-40= 88
88+12= 100
hope it helps!
