<span>(1,625) No
(0,-25) No
(-1,-1) No
Think about what an integer exponent means for an negative base and you'll understand this problem. For instance the powers of -25 would be
-25^1 = -25
-25^2 = (-25) * (-25) = 625
-25^3 = (-25)*(-25)*(-25) = -15625
and so on, giving 390625, -9765625, 244140625, etc.
But that's a different subject. For the ordered pairs given, let's check them out.
(1,625)
-25^1 + 1 = -25 + 1 = -24. And -24 is not equal to 625, so "No".
(0,-25)
-25^0 + 1 = 1 +1 = 2.
Note: Any real number other than 0 raised to the 0th power is 1. And 2 is not equal to -25, so "No".
(-1,-1)
-25^(-1) + 1 = 1/(-25^1) + 1 = 1/-25 + 1 = 24/25.
And 24/25 is not equal to -1, so also "No".</span>
Answer: 17.59 cm
Step-by-step explanation: C=2πr=2·π·2.8=17.59292 cm
Answer:
Please see below.
Step-by-step explanation:
First, let us find the cost of ONE soft drink.
We have the relation:
4 drinks for $2.20
We can divide the amount of money by the amount of drinks.
2.20 / 4 = 0.55
With this, we can conclude that each drink costs $0.55
A.)
Fill in the table.
For this, we just need simple multiplication.
1 drink = $0.55
2 drinks = $1.10
3 drinks = $1.65
4 drinks = $2.20
B.)
What is the constant of proportionality?
We have y = 2.20 and we have x = 4. Using the equation of proportional relationship, y = kx, we can plug in these numbers.
The constant of proportionality is 0.55.
C.)
If you were to buy 22 soft drinks, how much would it cost?
We can use multiplication.
22 x 0.55 = 12.10
22 soft drinks cost $12.10.
I hope this helps you. Please inform me of any mistakes.
Answer:
Step-by-step explanation:
4/52 * 3/51 * 2/50 * 1/49 = (4 queens over 52 and decreases because you already got dealt one card)
= 0.00000369378 =