Answer:
x = 1.5
Step-by-step explanation:
We need a value of x that would result in 2x+9 = 12
2x+9 = 12
2x = 12 - 9
2x = 3
x = 3/2 or 1.5
====
CHECK
Does 2x+9 = 12 when x = 1.5?
2x+9 = 12
2(1.5)+9 = 12
3 + 9 = 12 YES
Answer:
16
Step-by-step explanation:
The figure shown is a trapezoid
Area of a trapezoid = 1/2(bottom base length + top base length) × height
Bottom base length = 7 units
Top base length = 1 unit
Height = 4 units
So area = 1/2 ( 7 + 1 ) × 4
==> add 7 and 1
Area = 1/2 (8) × 4
==> multiply 1/2 and 8
Area = 4 × 4
==> multiply 4 and 4
Area = 16
-3x^2 + 12x -6
a = -3
b = 12
We calculate the vertex "x" value with this formula:
(vertex "x value") = -b / (2*a)
(vertex "x value") = -12 / -6
The vertex "x" value equals the axis of symmetry value.
The axis of symmetry is at x = 2.
Source:
http://www.1728.org/quadr3.htm
Y-8+2≤-2+2
remember you can do anything to an equaiton as long as you do it to both sides
y-8+2≤-2+2
y-6≤0
add 6 to both sides
y+6-6≤0+6
y+0≤6
y≤6
Answer:
Fractions are equal parts of a whole object or group of objects. To write a fraction, the numerator is the part and the denominator is the whole.
Step-by-step explanation:
When an object as a whole is divided into two parts, there are two possibilities. The parts may be equal or unequal. Each equal part of a whole is called one-half. It is expressed as 1/2 and read as one over two or one upon two.