Answer:
X=7 or x= 2
Step-by-step explanation:
![(4x - 8)(x - 7) = 0 \\ (4x - 8) = 0or(x - 7) = 0 \\ 4x = 8orx = 7 \\ x = 2orx = 7](https://tex.z-dn.net/?f=%284x%20-%208%29%28x%20-%207%29%20%3D%200%20%5C%5C%20%284x%20-%208%29%20%3D%200or%28x%20-%207%29%20%3D%200%20%5C%5C%204x%20%3D%208orx%20%3D%207%20%5C%5C%20x%20%3D%202orx%20%3D%207)
Answer:
-3, 5/2
Step-by-step explanation:
What are the roots of the function y = 4x2 + 2x – 30?
To find the roots of the function, set y = 0. The equation is 0 = 4x2 + 2x – 30.
Factor out the GCF of : 2, so the equation becomes 0 = 2(2x2+x-15)
Next, factor the trinomial completely. The equation becomes: 0=2(x+3)(2x-5)
Use the zero product property and set each factor equal to zero and solve.
x+3=0 2x-5 = 0
x = -3, 5/2
The roots of the function are -3, 5/2.
Hope this helped!
Answer:
Length=12 inches Width=6 inches
Step-by-step explanation:
X can stand for the width. 2x can stand for the length since it is twice the width. The perimeter would then equal 6x. 6x is equal to 36. Divide by 6 to isolate x. X equals 6 inches. So twice the width would be 12 inches.
<u>Answer:</u>
#1. -1
#2. 7
#3. 6
#4. 6.6
<u>Step-by-step explanation:</u>
Hopefully this helped, if not HMU and I will get you a better answer
<em>-Have a great day! :)</em>
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Answer:
Slope is not defined.
Step-by-step explanation:
If
and
are two points on a line then the slope of the line is given by ![\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
Now find the slope of the side of a square such that two adjacent vertices of a square are A(2, 3) and B(2, 8).
Take ![(x_1,y_1)=(2,3)\,,\,(x_2,y_2)=(2,8)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%3D%282%2C3%29%5C%2C%2C%5C%2C%28x_2%2Cy_2%29%3D%282%2C8%29)
Slope of the line ![=\frac{8-3}{2-2}=\frac{5}{0}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B8-3%7D%7B2-2%7D%3D%5Cfrac%7B5%7D%7B0%7D)
Here,
is not defined.
So, slope is not defined.