Answer:
18.0
Step-by-step explanation:
==>Given:
Triangle with sides, 16, 30, and x, and a measure of an angle corresponding to x = 30°
==>Required:
Value of x to the nearest tenth
==>Solution:
Using the Cosine rule: c² = a² + b² - 2abcos(C)
Let c = x,
a = 16
b = 30
C = 30°
Thus,
c² = 16² + 30² - 2*16*30*cos 30°
c² = 256 + 900 - 960 * 0.8660
c² = 1,156 - 831.36
c² = 324.64
c = √324.64
c = 18.017769
x ≈ 18.0 (rounded to nearest tenth)
Answer:
Dori:3x+3y=11.25
Nemo:4x+2y=10
Step-by-step explanation:
Let x and y represent tacos and double Deckers respectively.
For three tacos and three double Deckers, Dori pays $11.25
Writing an equation the statement, we obtain
3x+3y=11.25
Also,for four tacos and two double Deckers, Nemo pays $10
This implies
4x+2y=10
Vertex (-3,1)
No xinters
Y-inter (0,37)
Answer: 
Step-by-step explanation:
Given
Luis used 590 gm of flour each day
If he continues to use it for 3 weeks
A week has 7 days; so 3 weeks have 21 days
The flour used in 21 days
Thus, of flour is used in 3 weeks
