Answer:
+2
Step-by-step explanation:
Answer:
(3, 0)
Step-by-step explanation:
we have

we know that
The x-intercept is the value of x when the value of y is equal to zero
so
For y=0
substitute in the equation and solve for x


Divide by 7 both sides

therefore
The x-intercept is the point (3,0)
Answer:
In geometry, you can use deductive rules to prove that a given statement or conjecture is true or false using deductive reasoning.
Step-by-step explanation:
Answer:
x=13
Step-by-step explanation:
3(x-2)-3=30
3x-6-3=30
3x-9=30
3x=30+9
3x=39
x=39/3
x=13
Answer:
Step-by-step explanation:
In an isosceles triangle, two sides and two angles are equal.
The shortest side of an isosceles triangle is 2x+5 inches. The 2 longest sides are 3 inches longer. This means that the length of each of the longer sides is
2x + 5 + 3 = 2x + 8 inches
The formula for determining the perimeter of a triangle is expressed as
Perimeter = a + b + c
Where a, b and c are the sides of the triangle.
The perimeter of the triangle is 21 inches. Therefore, the equation that can be used to find the length of each side of the triangle is
2x + 5 + 2x + 8 + 2x + 8 = 21
6x + 21 = 21