What is the value of the equation f(x) =2x -3x +7 when x equals 2

5

Step-by-step explanation:

f(x) = 2x - 3x + 7

Plug in 2 every time you see an x within the equation: x = 2

f(2) = 2(2) - 3(2) + 7

f(2) = 4 - 6 + 7

f(2) = -2 + 7

f(2) = 5

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.