Answer:
False
Step-by-step explanation:
Solving the equation
3x² - 5x - 2 = 0
Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 3 × - 2 = - 6 and sum = - 5
The factors are - 6 and + 1
Use these factors to split the x- term
3x² - 6x + x - 2 = 0 ( factor the first/second and third/fourth terms )
3x(x - 2) + 1(x - 2) = 0 ← factor out (x - 2) from each term
(x - 2)(3x + 1) = 0
Equate each factor to zero and solve for x
x - 2 = 0 ⇒ x = 2
3x + 1 = 0 ⇒ 3x = - 1 ⇒ x = -
Solutions are x = 2 and x = -
Step-by-step explanation:
6x-12=12+5x
6x - 5x = 12 + 12
x = 24
That just means that you are dividing by -3 so when you do 45 divided by -3 what do you get?
Answer:
(0.8) (120)
Step-by-step explanation:
Finding a percentage amount of a number requires you to multiply the percentage (in this case, 80%) by the number (in this case, 120). In order to do so, you must convert the percent to a decimal by moving the decimal point two places to the left (in this case 80% to 0.80).
Does this help?
Answer:
2.5
Step-by-step explanation:
The computation of the XW is shown below
As triangle UVX is a right angle
So
VU^2 = XU^2 - VX^2
VU^2 = 15.7^2 - 8.5^2
VU^2 = 246.49 - 72.25
VU^2 = 174.24
VU = 13.2
As VU = WX because of same point tangent
NOw XW is
= UX - UW
= 15.7 - 13.2
= 2.5