Answer:
you dint put up the pictures so not sure
Step-by-step explanation:
Answer:
m=3, n=5
Step-by-step explanation:
(3+√5)² = (3+√5)(3+√5) =
3² + 3√5 + 3√5 + √5·√5 = 9 + 6√5 + 5 = 14+6√5
Answer:
7=-4x+7
Step-by-step explanation:
the formula of slope intercept form is y=Mx+b and M=slope and b=y value of x intercept
so y=-4x+7
Answer:the number of cars that were washed is 50
Step-by-step explanation:
Let x represent the number of cars that members of a senior class.
Let y represent the number of pick-up truck or a sport utility vehicle that members of a senior class.
They charged $3 to wash a car and $5 to wash a pick-up truck or a sport utility vehicle and they earned a total of $275. This means that
3x + 5y = 275 - - - - - - - - -- - -1
They washed a total of 75 vehicles. This means that
x + y = 75
Substituting x = 75 - y into equation 1, it becomes
3(75 - y) + 5y = 275
225 - 3y + 5y = 275
- 3y + 5y = 275 - 225
2y = 50
y = 50/2 = 25
Substituting y = 25 into x = 75 - y, it becomes
x = 75 - 25 = 50
So probility is (disired outcomes) divided by (total possible outcomes) so
1st one is white roses
8 white roses so 8 is disired
total=5+3+8=16
8/16=1/2
then without replacing them
red=5
total possible=16-1 since 1 picked
5/15=1/3
then multiply the probatilities
1/2 times 1/3=1/6
it is a 1 in 6 probability
