Answer:
= -48
Step-by-step explanation:
3x^3 - 8y^2
3 ( 2 )^3 - 8 ( -3 )^2
first you solve the exponents
3 ( 8 ) - 8 ( 9 )
multiply
24 - 72
subtract
= - 48
hope this helps
Answer:
Read and Visualize.
Step-by-step explanation:
The first thing we do with a multi-step word problem is read it slowly and visualize what is happening. This first step is about using our good reading comprehension strategies. I ask students to close their eyes and imagine the events as they take place.
Answer:
89.1° or -1.4°
Step-by-step explanation:
1. Location:
You are on the Mont-Saint-Jean escarpment, near the Belgian town of Waterloo.
The French troops are about 50 m below you and 1.2 km distant.
2. Finding the firing angle
Data:
R = 1200 m
u = 600 m/s
h = -50 m (the height of the target)
a = 9.8 m/s²
We have two conditions.
Horizontal distance
(1) 1200 = 600t cosθ
Vertical distance
(2) -50 = 600t sinθ - 4.9t²
Divide each side of (1) by 600cosθ.
Substitute (3) into (2)
Recall that
(5) sec²θ = 1/cos²θ = tan²θ + 1
Substitute (5) into (4)
Set up a quadratic equation
Solve for θ
Use the quadratic formula.
tanθ = 61.249 or -0.025
θ = arctan(61.249) = 89.1° or
θ = arctan(-0.025) = -1.4°
Answer:
No Solution
Step-by-step explanation:
perimeter
2√6 - √15 = 4.9-3.9 = 1
-3√3 = -5.19 you can't have a negative length.
and because of that the answer is no solution to both perimeter and area.
if the teacher was just oddly trying to have you show what you know
P = 1+1+ -5.2 - 5.2 = -8.2
A 1x -5.2 = -5.2