Answer:
A) 4mn
Step-by-step explanation:
2m × 2n = 4mn
I hope this helps!
Answer:
139
Step-by-step explanation:
So we start with PEMDAS. (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.)
Since we don't have parenthesis or exponents, we can go straight to multiplication. 9 multiplied by 14 is 126.
Now we go to addition. 126+1=127
127+12=139
Hope I helped :)
~Sunflower UwU
Answer:
-3/5 as a decimal iss -0.6
Step-by-step explanation:
Answer:
Step-by-step explanation:
7^8*7=
5764801 * 7= 40353607
A. 7^3*7^3= 343*343= 117649 <--- not the answer
B. 7^18/7^9= 40353607 <---- right answer
C. (7^3)^3= 343^3= 40353607 <------ right answer
D. 7^5+7^4= 16807+2401= 19208 <---- not the answer
E. 7^5*7^4= 16807*2401= 40353607 <---- right answer
Answer:
7sqrt(15) - 5sqrt(6)
------------------------------
45
Step-by-step explanation:
7 -sqrt(10)
-----------------------
3 sqrt(5) *sqrt(3)
7 -sqrt(10)
-----------------------
3 sqrt(15)
Multiply the top and bottom by sqrt(15)/ sqrt(15)
7 -sqrt(10) sqrt(15)
----------------------- * ------------
3 sqrt(15) sqrt(15)
(7 -sqrt(10))* sqrt(15)
-----------------------------------
3 *15
Distribute
7sqrt(15) - sqrt(150)
------------------------------
45
sqrt(ab) =sqrt(a) sqrt(b)
150 = 25*6
7sqrt(15) - sqrt(25)sqrt(6)
------------------------------
45
7sqrt(15) - 5sqrt(6)
------------------------------
45
