Answer:
vertex =
Intercepts for x =
intercepts for y = (0,-6)
A rectangle has a width of 5 cm and a length of 10 cm. If the width is increased by 3, how does the perimeter change?
2 answers:
Answer:
The perimeter changed by 6 cm.
Step-by-step explanation:
A rectangle has a width of 5 cm and a length of 10 cm.
The perimeter is = 2(length+width)
Perimeter =
=
= 30 cm
When the width is increased by 3, and lets assume that the length is same .
So, length is 10 cm and width is 8 cm.
Perimeter =
=
= 36 cm
Change in perimeter = cm
So, the perimeter changed by 6 cm.
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Answer:
the slope-intercept equation of a line that passes through the coordinate (-4,5) and (8,-1) is
Step-by-step explanation:
1) Apply the slope formula; y^2 - y^1 divided by x^2 - x^1
y^2 is -1
y^1 is 5
x^2 is 8
x^1 is -4
-1 - 5 = -6
8 - (-4) = 12
-6/12 is -1/2 or -0.5
2) To find the y-intercept, hoose either of the coordinates and replace y, m, and x in the y= mx+b formula.
5= -0.5(-4) + b
5= 2 + b
3= b
Answer:
<h2>E. 22</h2>Step-by-step explanation:
<em>Look at the picture</em>.
The lines <em>l</em> and <em>m</em> are parallel, therefore alternate interior angles are congruent.
Therefore
Supplementary angles add up to 180°.
Therefore
<em>add 16 to both sides</em>
<em>subtract 5x from both sides</em>
We know: the sum of the triangle angle measures is 180°.
Therefore we have the equation:
