Answer:
6
Step-by-step explanation:
We can use ratios to solve
15 ft 18ft
---------- = -----------
5ft x
Using cross products
15x = 5*18
15x = 90
Divide by 15
15x/15 = 90/15
x =6
Answer:
m∠E = 38.7°
Step-by-step explanation:
If you make a drawing it will help. What you have is a right triangle where you are given the adjacent side to ∠E and the hypotenuse.
The cosine of a angle = adjacent side/hypotenuse.
Therefore cos E = 32/41
arccos (32/41) = 38.7°
Answer:
Step-by-step explanation:
D={ 6 , -9 , 1 }
R={ 0 ,-3 }
Answer:
f(5, 0) = 25
f(5, -3) = 61
Step-by-step explanation:
f(x, y) = x² - 3xy - y²
⇒ f(5, 0) = (5)² - 3(5)(0) - (0)²
= 25 - 0 - 0
= 25
⇒ f(5, -3) = (5)² - 3(5)(-3) - (-3)²
= 25 - 15(-3) - 9
= 25 + 45 - 9
= 61
Answer:
-4,4
Step-by-step explanation:
