So area is 168 sq ft
That means that length * width = 168 sq ft
Since length = 10 + 2 w
we get (10+2w)(w) = 168
Multiply it out and you get 2w^2 + 10w - 168 = 0
This is a quadratic equation. You can use the formula here, but i'll just tell you the answer
w = -12, or 7
since it can't equal -12 (ever heard of a barn with a length of -12?), you figure out the answer is 7.
If the width is 7, then the length is 10+2(7) = 24.
Have a nice day!
Answer:
Step-by-step explanation:
<u>slope-intercept form</u>
y= mx +c, where m is the slope and c is the y-intercept.
Let's rewrite the given equation into the slope-intercept form so we can find out its gradient.
3x +2y -6= 0
2y= -3x +6
<em>Dividing</em><em> </em><em>by</em><em> </em><em>2</em><em> </em><em>throughout</em><em>:</em>
Thus gradient of given line=
Parallel lines have the same gradient.
Thus gradient of line=
Subst. m= into the equation:
To find c, substitute a pair of coordinates.
When x=0, y=0,
Thus, the equation of the line is .
play the video it will help you
Answer:
Exactly one triangle of the dimensions 6cm, 6cm and 4cm.
Step-by-step explanation:
Given the dimensions of the triangle as 6cm, 6 cm, and 4 cm
-We notice this is an isosceles triangle since it has two equal sides.
-A triangle is a two dimensional figure with fixed dimensions.
-Since, the sides are fixed, we cannot fragment its dimensions to form longer or shorter sides.
-Hence, only one triangle can be made from the dimensions 6cm, 6cm and 4cm.
Answer:wdym
Step-by-step explanation: how many points in each one??