Answer:
<h2>x must be less than -4</h2>
Step-by-step explanation:
We need to set the equation equal to 0
-4 - x > 0
+ -4 + -4
<h2>x < - 4</h2>
Answer:
£960
Step-by-step explanation:
100%=£800
20% of £800= 800/100 x 20 = £160
£800+VAT=120%= £800+£160=960
Answer:
yes
Step-by-step explanation:
To determine if the sides form a right triangle.
If the square of the longest side is equal to the sum of the squares on the other 2 sides then triangle is right.
longest side is c = 13
13² = 169
a² + b² = 12² + 5² = 144 + 25 = 169
Since c² = a² + b² = 169
Then the sides form a right triangle
Answer: 803.84 square inches
Step-by-step explanation:
A sphere is a 3 dimensional solid and its surface area is the total number of square units that will cover the sphere's surface.
The formula for the surface area of a sphere is expressed as 4πr^2
Where
r = radius of the sphere
π i s a constant with a value of 3.14
From the information given,
Diameter of the sphere = 16 inches
Radius of sphere = diameter of sphere divided by 2
Radius of sphere = 16/2 = 8 inches.
Surface area of sphere
= 4 × 3.14 × 8^2 = 803.84 inches^2