Answer:
-3(-5)--> -3×(-5) equals -15 minus a positive 4 is -19
Step-by-step explanation:
subtract 4 from 19 and find out what factors can multiply together to get the difference from 19-4. In this case, it's 15. -3(-5) equal -15 and I'm subtracting a positive (4), which won't go down and equal 11 like we usually do it. when subtracting a positive from a negative. we go up. 19-4=15. -3x-5 equal -15-4=-19. Hope you get this!!
The frame of film is actually 50 mm high, but it looks 16 m high on the screen.
Remember that 1 m = 1,000 mm.
So everything looks (16,000)/(50) = <u>320 times</u> as big on the screen
as it is on the film. That's called the scale factor.
The penguin is 35 mm high on the film. He'll look 320 times bigger on the screen.
(320) x (35 mm) = 11,200 mm = <u>11.2 meters</u> high
A.209
<span>276.37 – 67.81 = 208.56
The 5 in .56 means round up.
This means 208.56 will turn into 209.</span>
First, simplify the equation into y=mx+b form. This would be y=3x/2-15/2. And for the slope of a line perpendicular to the original line, there is a trick. Their slopes should multiply to -1. For 3/2 to multiply to -1, you need -2/3.