Answer:
x = -8
y = 9
Step-by-step explanation:
to solve this expression using simultaneous equation, we would say let
y =9............................................. equation 1
6x + 5y =-3............................................equation 2
substitute equation 1 into equation 2
-3 = 6x + 5y............................................equation 2
6x + 5(9) = -3
6x + 45 = -3
collect the like terms
6x = -3-45
6x = -48
divide both sides by the coefficient of x which is 6
6x/6 = -48/6
x = -8
therefore y = 9
x = -8
Answer:
14.4 inches to the nearest tenth.
Step-by-step explanation:
The square has area x^2 where x is the length of each side so:
x^2 = 13
x = √13.
The perimeter is the distance all around the square and this is 4x so we have the answer 4 *√13
14.422 inches.
Answer:
Alternate Interior angles! ? = 50 :)
Step-by-step explanation:
They are both interior, and they are alternate, so the type of angle pair is an alternate interior angles pair!
Relationship: They are congruent to each other!
They are also both equal! :)
Answer:
140·80=11200
Step-by-step explanation:
From exercise we have example for how we find half the sum of 246 and 388, we can enter "(246+388)/2".
Based on this example, we will calculate what is required in the task using a calculator. So we use a calculator to find the product of the following numbers, 140 and 80.
We calculate, and we get
140·80=11200
Answer:
A) 0.386
B).0.325
Step-by-step explanation:
probability p will not work = 0.15
Q probability w5ill work = 0.85
Number of flashlight = 3
Probabilty of at least one=
1- probability of none
But probability of none= 3C0(p)^0(q)^3
= 1*(0.15)^0(0.85)^3
= 1*1*(0.614)
= 0.614
Probability of at least one=1-0.614
= 0.386
Probability of two flashlight work
= 3C1(0.15)^1(0.85)^2
= 3*(0.15)*(0.7225)
= 0.325
