Answer:
+4 and -4
Step-by-step explanation:
(x^2)-14=2
(x^2)-14-2=0
(x^2)-16=0
(x-4)(x+4)=0 = True
Answer:
The sum of x and y is a rational number
Step-by-step explanation:
X+Y or 5+7=12
A rational number is any number that can be divided without going on and on forever.
Answer:
Step-by-step explanation:
T think its the 3rd option down
Answer:
The correct option is B
Step-by-step explanation:
Given information: ∠F=32°,∠D=54° and DF=18m.
According to the angle sum property of triangle, the sum interior angles of a triangle is 180°.
Using angle sum property, we get
Law of sine:
Using law of sine we get
Cross multiply,
Divide both sides by 0.99756405026.
The value of EF is 14.6 m. Therefore the correct option is B.
Answer:
<h3>3cm</h3>
Step-by-step explanation:
Area of a triangle = 1/2 * base * height
Given
Area = 7 7/8cm²
Base = 5 1/4 cm
Required
Height of the triangle
Substitute;
7 7/8 = 1/2 * 5 1/4 * Height
63/8 = 1/2 * 21/4 * h
63/8 = 21H/8
63 = 21H
H = 63/21
H = 3cm
Hence the length of h is 3cm
