√(15+x) = 2x+3
take sqr for both side
15x+10=(2x+3)^2
15x+10=4x^2+9+2*2x*3
15x+10=4x^2+9+12x
4x^2-3x--1=0
solve it u will x=1,-1/4
Answer:
To find the x-intercept, make y equal to zero, and solve for x. To find the y-intercept, make x equal to zero, and solve for y.
Explanation:
<span>y=4x−2</span>
<span>
</span>
X-Intercept
<span>0=4x−2</span>
<span>
</span>
Add 2 to both sides of the equation.
<span>2=4x</span>
<span>
</span>
Divide both sides by 4.
<span><span>2/4</span>=x</span>
<span>
</span>
Simplify.
<span><span>1/2</span>=x</span>
<span>
</span>
Switch sides.
<span>x=<span>1/2</span></span>
<span><span>
</span></span>
Y-Intercept
<span>y=4<span>(0)</span>−2</span>
<span>y=−2</span>
False- the included angle must be a right angle for cos C to be 0 & two other points are normally used
Answer:
10:6=10*7:6*7
10:6=70:42
70+42=112
White ball 70 and striped balls 42
Ratio: 3/4 : 1/2
We can also write this as:
3/4 / 1/2
Flip the 2nd fraction and multiply:
3/4 * 2/1
Multiply the numerators and denominators together:
6/4
Simplify:
3/2
