Answer:
$235.2
Step-by-step explanation:
Given data
Principal= $5,600
Rate= 4.2%
Time= 1 year
The expression for the simple interest is given as
SI= PRT/100
substitute
SI= 5600*4.2*1/100
SI= 23520/100
SI=$235.2
Hence after 1 year he will pay $235.2
x = Nick's age y = Sara's age
Nick is 8 years older than Sara, therefore
y = x - 8
Answer:
The answer is z = -2
Step-by-step explanation:
You combine like terms.
Then subtract 7z from both sides.
Add 10 to both sides.
Then divide both sides by -14. (28/-14)
Which then equals to -2
Answer:
y = 6.22
You can solve this in two ways.
1.) Use SOH CAH TOA:
I typically start off by labeling the sides of the triangle with H (hypotenuse), O (opposite), and A (adjacent). Because I need to figure out what y is when given an angle and 4, I will use CAH, or cosine.





2.) Use Law of Sines:
Solve for the last angle inside the triangle first.

Then use the angle you found (40°) in the equation.



Answer:
x² - 2x - 35
Step-by-step explanation:
x₁ = -5
x₂ = 7
-5 * 7 = -35
5 - 7 = -2
x² - 2x - 35 = 0
(x - 7)(x + 5) = 0
x - 7 = 0
x₁ = 7
x + 5 = 0
x₂ = -5