Answer:
2.6 x 10^21
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10 If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Answer:
x^2+2x-15
Step-by-step explanation:
A=L*W
A=(x-3)(x+5)
A=x^2+5x-3x-15
A=x^2+2x-15
hope this helps ya!
can i get brainliest please?
Answer:
Answer: 7y²-x²y+3xy+7x²
Step-by-step explanation:
Answer:
Grace is right
Step-by-step explanation:
91 x 0.30 = 27.3
91 plus 27.3 equals to 118.3
Answer:
n=-1
Step-by-step explanation:
distribute the 7 to n+4 to get 7n + 28 = 21. subtract 28 from both sides to get 7n = -7. divide both sides by 7 to get n=-1
you could also divide everything by 7 at the beginning to get n+4=3, then subtract 4 from both sides to get n=-1
