What is the slope of the line through (-1,-7)(−1,−7)left parenthesis, minus, 1, comma, minus, 7, right parenthesis and (3,9)(3,9)left parenthesis, 3, comma, 9, right parenthesis? Choose 1
Choose 1

(Choice A)
A
\dfrac14
4
1

start fraction, 1, divided by, 4, end fraction

(Choice B)
B
444

(Choice C)
C
-4−4minus, 4

(Choice D)
D
-\dfrac14−
4
1

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

16 more than the product of 5 and p