Answer:
P(-1) = -18
Step-by-step explanation:
P(x) = x^4 +5x^3 -4x-18
p(-1) = (-1)^4 + 5(-1) -4(-1) -18
P(-1) = 1 -5 +4 -18
= -4+4-18
= -18
Answer:
t + 8 = 82
Step-by-step explanation:
I believe they want the temperature at 11, so we would use the variable t to represent that. Then, we need the sum of that temperature and 8 degrees to break the record of 82 degrees, so we would do t, the temperature, added to 8 degrees, which will break the record of 82 :)
Box 1:0,3,6,9,12, Box 2: 0,1,2, 14. Box3:1,9,13,18, box4:4,5,7hope this helps
Answer: 336 cm²
Step-by-step explanation:
A trapezoid looks like a rectangle with 2 traingles attached to the side, yeah? So imagine cutting off those 2 triangles. In the middle you have a rectangle with the dimensions of 14 cm by 16 cm. The area of that rectagle is 224 cm². By subtracting the top base length from the bottom base length, you get the length of the two triangles. So, it would be 28 cm - 14 cm, giving you 14 cm. There were 2 triangles, so cut that length in half and you get 7 cm for the base of one traingle. To find the area of 1 traingle, you would do 1/2 multiplied by 7 multiplied by 16. But you have 2 triangles. so the 1/2 step isn't needed because if you put the two triangles together, you get a new rectangle. Thus, when you add the area of this new rectangle, you get 112 cm². Add this to the original rectangle, and your final area is 336 cm².
Its alright dude just gotta work hard and study i know you can do it
