Step-by-step explanation:
y = ax^n + bx^(n-1) ... + z
(0, 1) tells us that the constant term z = 1.
because x = 0 eliminates all other terms. and as the sum is 1, that means z = 1.
for the other pairs I strongly suspect
(-1, 3) : 2×(-1)² + 1 = 2×1 + 1 = 3
(-2, 9) : 2×(-2)² + 1 = 2×4 + 1 = 9
so, the fitting equation is
y = 2x² + 1
From the problem we know that Hanna saves one-half of her paycheck each week, so she saves

. Also, we know that her parents put $50 in her savings account each week, so the total amount she and her parents put in her saving's account is

.
Since we know that Hanna currently has <span>$1,280 in her saving's account and each week she and her parents deposit $130 to the account, with </span>

representing the number of weeks, we can model the situation as follows:
Answer:
2323
Step-by-step explanation:
According to the questions above, the report from the traffic jam says the traffics jam stretches for 5.5 miles
As Connor assumes that each car is about 12.5 long
The next step is to convert 5.5 miles into feet.
Since 1 mile = 5280
To convert 5.5 miles, 5.5 x 5280 = 29040 feet
To find the numbers of cars struck in traffic, we will have to divide 29040 by 12.5
29040/12.5 = 2323.3 ≅ 2323
Standard form is just another way of saying "how to write a number in a regular form".
Ex. Standard form is any number.
4
65
234
1,865
234,908
4567,987,634