Answer:
Step-by-step explanation:
2(5)(-5)-(5)^2
=−75
Answer:
one solution
Step-by-step explanation:
* Lets start to solve the question
- The 1st equation x - y = -4
- The 2nd equation 3x + y = 8
- We will use the elimination method to solve this system of equation
∵ x - y = -4 ⇒ (1)
∵ 3x + y = 8 ⇒ (2)
- Add the two equation (1) and (2) to eliminate y
∴ x + 3x = -4 + 8
∴ 4x = 4
- Divide both sides by 4
∴ x = 1
- Substitute the value of x in equation (1) or equation (2) to find
the value of y
- We will use equation (1)
∴ 1 - y = -4
Subtract 1 from both sides
∴ -y = -5
- Divide both sides by -1
∴ y = 5
∴ The solution is (1 , 5)
* The system has one solution
In triangle the sum of the angles =180,and we have angle=124 so,180-124=56.
X=4
Using the compound interest formula,
A = P(1+r)^n
A = 17000
r = 4% quarterly
n = 8yrs = 32 quarters of a year
P = ?
17000 = P(1+4%)^32
P = $[17000/((1+4%)^32)]
Answer:
A
Step-by-step explanation:
Henry's balloon started at 10 miles but tasha started at 15 and Henry's travelled at 7 mph but tashas travels at 6mph
