Answer:
it's 1/7^2
Step-by-step explanation:
When multiply bases with exponents, as long as they are the like bases, you add the exponents. 7^3 x 7^-5 = 7^-2.
When you have a negative exponent, you can get rid of it by moving it to a fraction. put a 1 over the base and exponent and drop the negative, so 1/7^2
Answer:
The square root of 17 is between 4.12 and 4.13
The square root of 20 is between 4.47 and 4.48
The square root of 23 is between 4.79 and 4.80
The square root of 19 is between 4.35 and 4.36
Answer:
The answer is P≈14.14
Step-by-step explanation:
Hope this helps : )
167 haisoake ,?/&9-‘eveiaow be a
Answer:
8 quarters and 14 dimes
Step-by-step explanation:
This situation has two unknowns - the total number of dimes and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns.
• 
is an equation representing the total number of coins
• 
is an equation representing the total value in money based on the number of coin. 0.10 and 0.25 come from the value of a dime and quarter individually.
We write the first equation in terms of q by subtracting it across the equal sign to get 
. We now substitute this for d in the second equation.
After simplifying, we subtract 2.2 across and divide by the coefficient of q.
We now know of the 22 coins that 8 are quarters. To find the number of dimes, we subtract 8 from 22 to get 14 dimes.
