Answer: x = -5
Step-by-step explanation:
First convert 3/4 to decimal= 0.75
0.75 (8x - 4) = 7x + 2
6x - 3 = 7x + 2
Transpose 7x from right hand side to the left hand side
6x - 7x = 2 + 3
-x = 5
x = -5
I hope this helps.
Answer:
38
Step-by-step explanation:
You need to add all of numbers together and then divide by the total number of numbers.
Answer:
see explanation
Step-by-step explanation:
m(x) = 0 when
(2x - 6)(x - 4) = 0
Equate each factor to zero and solve for x
2x - 6 = 0 ⇒ 2x = 6 ⇒ x = 3
x - 4 = 0 ⇒ x = 4
m(x) = 0 when x = 3 and when x = 4
The graph of m intercepts the x- axis at x = 3 and x = 4
The zeros of m are x = 3 and x = 4
Note that the x- intercepts and the zeros are the same values.
So hmmm there are 5pennies in a nickel, and 10pennies in a dime and 25pennies in a quarter
now, in $6.10, there are 610 pennies
n = amount of nickels coins
d = amount of dime coins
q = amount of quarter coins
so... we know, there are 5*n or 5n pennies in the nickels, and 10*d or 10d pennies in the dimes and 25*q or 25q in the quarter coins, and we know their sum is 610 pennies total, thus
5n + 10d + 25q = 610
now, there are 4 more "n" then "d", so whatever "d" is, "n" is 4 more than that
n = d + 4
and twice as many "q" than "n", so, whatever "n" is, then
q = 2n
solve for "d", to see how many dimes are there
what about the nickels? well, n = d + 4
what about the quarters? well, q = 2d + 8
We can use the Cosine Law ( π / 3 = 60° ):
c² = a² + b² - 2 a b cos C
c² = 4² + 3² - 2 · 4 ·3 · cos 60° = 16 + 9 - 24 · 1/2 = 25 - 12 = 13
Answer:
The length of the third side of a triangle is c = √ 13 ≈ 3.6