Answer:
1. 3=x 2. no solution 3. infinate
Step-by-step explanation:
1. x=-5x+18
+5x +5x
6x=18
18/6=3
3=x
2. 3x-5=7+3x
-3x -3x
-5=7 No solution
3. 1/4(8x-12)=2x-3
2x-3=2x-3
-2x -2x
-3=-3
infinate
f(x) = x^2 – 10x—96
Answer:
.
Step-by-step explanation:
The goal is to rewrite in the vertex form by completing the square (where , , and are constants.)
Expand the vertex form expression:
.
Compare this expression to and solve for the constants , , and . Make sure that the coefficient of each term matches:
Substitute into the second equation, , and solve for .
.
.
Substitute both and into the third equation, , and solve for .
.
.
Therefore, becomes .
Hence, the vertex form of the parabola would be:
.
Answer:
(x - 5)² -121 = 0
Step-by-step explanation:
if you need to find the roots you can take the square root of each side:
(x-5)² = 121
(x-5)² = 121
square root of (x-5)² is x-5
square root of 121 is ±11
first root: x-5 = 11
x = 16
second root: x-5 = -11
x = -6
B. i^37
C. i^38
D. i^39
Help pleaseee
Answer:
D. i^39
Step-by-step explanation:
If you simplify i^39, you get i^35, i^31, i^27, i^23, i^19, i^15, i^11, i^7, to i^3, which is equal to -i.
Answer:
90 degree
Step-by-step explanation:
Three points A, B, and C are added and shown in attached picture.
As the property of inscribed angle in circle:
angle BAC = (1/2) x 88 = 44 deg
As the property of complement angle:
angle ABC = 180 - 89 = 91 deg
As the property of sum of three angles in a triangle:
angle ACB + angle ABC + angle BAC = 180 deg
=> angle ACB = 180 - angle ABC - angle BAC = 180 - 44 - 91 = 45 deg
One more time, we use the property of inscribed angle in circle:
x = 2 x angle ACB = 2 x 45 = 90 deg
Hope this helps!
Hello!
Answer:
Step-by-step explanation:
We want that the fractions 3/11 and 1/4 have a common denominator.
Let's find the LCM (least common multiple) of 4 and 11:
So the LCM of 4 and 11 is 44.
Convert fractions over 44:
Answer:
The maximum volume of such box is 32m^3
V = x×y×z = 32 m^3
Step-by-step explanation:
Given;
Total surface area S = 48m^2
Volume of a rectangular box V = length×width×height
V = xyz ......1
Total surface area of a rectangular box without a lid is
S = xy + 2xz + 2yz = 48 .....2
To be able to maximize the volume, we need to reduce the number of variables.
Let assume the rectangular box has a square base,that means; length = width
x = y
Substituting y with x in equation 1 and 2;
V = x^2(z) ....3
x^2 + 4xz = 48 .....4
Making z the subject of formula in equation 4
4xz = 48 - x^2
z = (48 - x^2)/4x .......5
To be able to maximize V, we need to reduce the number of variables to 1, by substituting equation 5 into equation 3
V = x^2 × (48 - x^2)/4x
V = (48x - x^3)/4
differentiating V with respect to x;
V' = (48 - 3x^2)/4
At the maximum point V' = 0
V' = (48 - 3x^2)/4 = 0
Solving for x;
3x^2 = 48
x = √(48/3)
x = √(16)
x = 4
Since x = y
y = 4
From equation 5;
z = (48 - x^2)/4x
z = (48 - 4^2)/4(4)
z = 32/16
z = 2
The maximum volume can be derived by substituting x,y,z into equation 1;
V = xyz = 4×4×2 = 32 m^3