Answer:
b=2
Step-by-step explanation:
Distribute the 7 on the right side
21=7(b+1)
21=7b+7
Subtract 7 on both sides
14=7b
Divide by 7 on both sides
b=2
Hope this helps! :)
Answer:
15
Step-by-step explanation:
you put -5 in place of the x the you multiply 5 times -5
then you subtract that from 40
so 40 - 25
Answer:
-11
Step-by-step explanation:
-3 - (8) =-11
A negative - a negative = negative.
Think of it like this:
If you already have a negative number and you want to "add" more "negativeness" to it, that would make the number more negative, if that makes sense.
Answer:
<u>45</u>
Step-by-step explanation:
Slant height = √(altitude)² - (1/2 base)²
- Sh = √53² - 28²
- Sh = √2809 - 784
- Sh = √2025
- Sh = <u>45</u>
<u></u>
<u>Apologies as my previous response was incorrect.</u>
