Which ordered pair is a solution of the equation?
y = -7x + 2

(1,2)
(8,-54)
(5, -35)
(1,-7)

The second ordered pair (8, -54) is a solution of the equation.

Step-by-step explanation:

The first thing to take into account is that the first number in the parenthesis refers to a x value and the second number in the parenthesis refers to the related y value. It is .

For example, consider the function .

When equals 2, equals 4. It means that the ordered pair is

Now, you must evaluate each ordered pair to find which one fits the equation

The second number in (1, 2) must be -5. As it is not, this option is incorrect.

As the second number in (8, -54) is -54, this option is CORRECT.

The second number in (5, -35) must be -33. As it is not, this option is incorrect.

The second number in (1, -7) must be -5. As it is not, this option is incorrect.

Thus, the second ordered pair (8, -54) is a solution of the equation.

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm