Answer:
wow thats a lot and looks complicated
You need to use FOIL
(3d+5)+(d-2)=3d^2-6d+5d-10=3d^2-1d-10
Answer:
a = 9.4 cm
b = 12.0 cm
Step-by-step explanation:
Check the image uploaded for diagram;
For the first diagram, side length a is calculated as follows;
a² = 8² + 5²
a² = 64 + 25
a² = 89
a = √89
a = 9.4 cm ( approximated to 1 decimal place)
For the second diagram, side length b is calculated as follows;
b² = 17² - 12²
b² = 145
b = √145
b = 12.0 cm (approximated to 1 decimal place)
Answer:
B. 8 cm.
Step-by-step explanation:
The area of a rectangle is the length*width.
The area of the larger rectangle is 4*12=48.
The area of the smaller rectangle is 3*x=3x.
If the larger rectangle's area is twice that of the smaller rectangle, then we can say 48=2*3x.
Let's solve for x
48=2*3x
48=6x
x=8
<h2>
Greetings!</h2>
Answer:
€16.40
Step-by-step explanation:
First, we need to divide £12.30 by 3 to find out how many groups of 3 there is:
12.3 ÷ 3 = 4.1
Now we can multiply this by 4 to find the euro equivalent:
4.1 * 4 = 16.4
So £12.30 is €16.40
<h2>Hope this helps!</h2>
