Answer:
Slope = 1/20
Step-by-step explanation:
Because every 1 second, she goes down 20 feet.
lets start by labeling the rectangle. let w = width so length(l) = w+4 (i.e 4 more than the width)
Perimeter of a rectangle= sum of all the sides= l+ w+l+w=2l +2w
now we know that p = 2l + 2w = 100
but we know that l=w+ 4
so
2(w+4) +2w=100
2w +8 +2w = 100
4w+8 =100
4w= 92
w=23
and if we substitute into 2l+2w= 100
we will get l =27.
Answer:
624
Step-by-step explanation:
Answer:
i think it's a quadrilateral it's a rhombus.
Step-by-step explanation:
hope this helps
Answer:
<em>A.</em><em> There were 400 larvae at 0 degree Celsius.</em>
Step-by-step explanation:
Here,
x = the temperature of water in °C
y = the number of insect larvae in the water
The graph is a graph of quadratic function as it is a parabola and it opens downward, so it has a negative leading coefficient i.e coefficient of x² is negative.
At y intercept, the line or curve passes through y axis. At y intercept the value of x is zero, because on y axis the value of x is 0.
As the y intercept in this case is (0, 400), so at y intercept value of x is 0 and y is 400.
Therefore, at y intercept or at 0°C there were 400 larvae.
