Answer and explanation:
To find : Write a fact family for 2, −5, and −10 ?
Solution :
A fact family is a group of math facts using the same numbers.
In the case of multiplication and division, we bring number together to get the product or divisor.
For 2, −5, and −10
The fact family are,



Answer:
The HCF of 30 and 40 is 10
If the girl is 21 years old and her brother is a third of her age means he is 7 years old. now his sister is 36 yard old so that means he is 12 years old
Answer:
-1/3
Step-by-step explanation:
Find the negative reciprocal of the slope of the original line.
Hope this help and not wrong!!!
Answer:
r = 
r = 17.2 cm
Step-by-step explanation:
∵ The area of the circle A = πr²
∴ r² = A/π
∴ r = √(A/π)
∵ A = 54 cm²
∵ π = 22/7
∴ r = √(54/(22/7)) = √(54×7/22) = 17.2 cm