Answer:
What is part 1?
Step-by-step explanation:
Answer:
x = £200
(y = £400)
Step-by-step explanation:
Convert interest rates into decimal format:
3% = 3/100 = 0.03
4% = 4/100 = 0.04
From information given, create 2 equations:
0.03x + 0.04y = 22
0.04x + 0.03y = 20
Rearrange equation 1 to make y the subject:
⇒ 0.03x + 0.04y = 22
⇒ 0.04y = 22 - 0.03x
⇒ y = 550 - 0.75x
Substitute y = 550 - 0.75x into equation 2 and solve for x:
⇒ 0.04x + 0.03(550 - 0.75x) = 20
⇒ 0.04x + 16.5 - 0.0225x = 20
⇒ 0.0175x = 3.5
⇒ x = 200
To find y, substitute found value of x into one of the equations and solve for y:
⇒ 0.04(200) + 0.03y = 20
⇒ 8 + 0.03y = 20
⇒ 0.03y = 12
⇒ y = 400
Answer:
Step-by-step explanation:
Given
![x=4-t](https://tex.z-dn.net/?f=x%3D4-t)
and ![y=t^2-2\quad \ldots(i)](https://tex.z-dn.net/?f=y%3Dt%5E2-2%5Cquad%20%5Cldots%28i%29)
So, ![t=4-x](https://tex.z-dn.net/?f=t%3D4-x)
Substitute the value of
in ![(i)](https://tex.z-dn.net/?f=%28i%29)
![y=(4-x)^2-2](https://tex.z-dn.net/?f=y%3D%284-x%29%5E2-2)
![y+2=(4-x)^2](https://tex.z-dn.net/?f=y%2B2%3D%284-x%29%5E2)
So it represent a parabola shown in the figure
Answer:
about 22.63 cm
Step-by-step explanation:
A(-3,2) B(-1,0) C(-3,-2) D(-5,0)
It's 4*
*4=22.63
Answer:
x=2
Step-by-step explanation:
The axis of symmetry goes through the vertex and is the line that makes the image the same on one side as the other
Since this is a vertical parabola, the axis is symmetry is of the form x=
The vertex is at x=2 so the axis of symmetry is x=2