Answer:
x=2, x=-1
Step-by-step explanation:
f(x) = x^2 − x − 2
Set equal to zero
0 = x^2 − x − 2
Factor
What 2 numbers multiply to -2 and add to -1
-2*1 = -2
-2+1 =1
0=(x-2) (x+1)
Using the zero product property
x-2 =0 x+1 =0
x=2 x=-1
Answer:
Step-by-step explanation:
From your choices, it looks like you want m<A
Solution
<C = 46° The triangle is isosceles. The two marked sides are equal.
<A + <B + <C = 180l All triangles have interior angles = 180
<A + 46 + 46 = 180 Combine
<A + 92 = 180 Subtract 92
<A = 180 - 92
<A = 88
Answer:
162 pups are on the beach
Step-by-step explanation:
9/20 of 360
The key word "of" tells us to multiply
Variable x = number of pups
9/20 × x/360
Cross multiply
9 × 360 = 20 × x
3,240 = 20x
Divide both sides by 20
162 = x
Check our work:
9/20 = 162/360
Cross multiply
9 × 360 = 20 × 162
3,240 = 3,240
Correct
Correct Option:Option B
Solution:The given expression is:
cos(3x) can be written as cos(2x +x). Expanding it, we get:
Using this value of cos(3x) in given equation, we get:
