I’m pretty sure the correct answer is B
Answer:
-6d^2 + 12d - 3
Step-by-step explanation:
use PEMDAS
parentheses
exponents
multiplication
division
addition
subtraction
use that order to solve problems like that.
Use pythagoras
d = √(Δx² + Δy²)
d = √(12-2)² + (9-4)²
d = √(10² + 5²)
d = √(100 + 25)
d = √125
d = 5√5
d = 5 × 2.236
d = 11.18
The nearest tenth is 11.2, so the distance is near to 11.2
Correct answer is D).
A) and C) are polynomials, so x∈R, in B) we have √x, and in this case x ≥ 0.
Answer:
<h2>The answer is 56 m</h2>
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
To find the area we must first find the length of the rectangle using it's area.
That's
Area = length × height
From the question
Area = 96 m²
height = 4 m
So we have
96 = 4l
Divide both sides by 4
length = 24 m
Now we have
Perimeter = 2(24) + 2(4)
= 48 + 8
We have the final answer as
<h3>56m</h3>
Hope this helps you
