67 ÷ 10 x 4 = 26.8 hours for her to eat 67 cookies
The probability of the 2 events are multiplied to get the result 10/91
so we have the relation 5/14 * x = 10/91
where x is the probability of drawing the second black
so x = 10/91 * 14/5 = 4/13 answer
Use pythagorean therom, so A^2 would be 12 since it’s the same lengths the square sides, and C^2 is 20. X= 16
Answer:
= 1+2n and 63
Step-by-step explanation:
the question belongs to arithmetic sequence and can be determined by the formula
= a1 + d (n-1)
Let " " represents the number of band members in the nth row
and 'd' represents the common difference.( as stated each row has 2 more band members than the row before it)
therefore, d=2
'a1' represents first row that has three members. So, a1 = 3
->Rule for nth term will be:
= 3 + 2(n-1)
= 3 + 2n -2
= 1+2n
-> In order to find total number of band members '
'
Let 
represent total number in n rows
We'll use the formula, i.e = n/1 (
+ )
where, n is the number of terms, is the first term and is the last term
So,
n=7
= 1 + 2(7)= 15
=> = 7/2 (3 + 15)
= 63
The total number of band members are 63
Answer:
4b³c⁴ + 2b⁴c³
Step-by-step explanation:
5b⁴c³ and 3b⁴c³ have the same variables. Therefore, they are like terms.
4b³c⁴ + 5b⁴c³ - 3b⁴c³
4b³c⁴ + 2b⁴c³
