I think it’s 4rd graph because it’s increasing constantly
Answer:
35 degrees
Step-by-step explanation:
Sum of angles inside a triangle is 180 degrees.
Right angle is 90 degrees.
180 = 90 + (x + 46) + (x + 66) = 2x + 202
x = -11
A = x + 46 = -11 + 46 = 35
= 4 × 10 to the power of 2
Step-by-step explanation:
First, you need to rewrite the expression into binomial form, so you are working with two terms (as you world with a quadratic):
(x²)²-3(x²)-4=0
Now, you can place the x²s into brackets as the coefficient is now 1:
(x² )(x² )
Next, find out two numbers that add together to give you -3 and multiply to give -4 (these are the leftover integers after removing the x²s). These two numbers are -4 and 1.
Place the -4 and 1 into the brackets:
(x²-4)(x²+1)=0
Notice that the x²-4 is a difference of two squares, so can be further factorised into (x+2)(x-2)
This leaves you with a final factorisation of:
(x+2)(x-2)(x²+1)=0
Now we handle each bracket individually to obtain our four solutions for x:
x+2=0
x=-2
x-2=0
x=2
x²+1=0
x²=1
x=<span>±1</span>
Answer:
y = 5x+3
Step-by-step explanation:
To find the slope, we need to points
(1,8) and (2,13)
Slope is given by
m = (y2-y1)/(x2-x1)
= (13-8)/(2-1)
= 5/1
The slope is 5
We can use the point slope form for an equation
y-y1 = m(x-x1)
y-8 = 5(x-1)
Distribute the 5
y-8 = 5x-5
Add 8 to each side
y-8+8 = 5x-5+8
y = 5x+3
This is in slope intercept form
