Sam created the following incorrect dot plot to represent the data:
What should Sam do to make the dot plot correct?
Put another dot on 13
Put another dot on 16
Delete one dot on 22
Delete one dot on 34
y = 60x + 10
Car B
y = 40x + 70
After how many hours will the two cars be at the same distance from their starting point and what will that distance be?
2 hours, 150 miles
2 hours, 190 miles
3 hours, 150 miles
3 hours, 190 miles
x2(x + 9) – 5(x + 9)
x(x2 + 5) – 9(x2 + 5)
x(x2 – 5) – 9(x2 – 5)
The answer choice which shows a way to determine the factors by grouping is; x(x² + 5)–9(x² + 5).
According to the task content, the factors of the expression are to be determined by grouping.
On this note, one way to group the factors would be;
x³ + 5x - 9x² -45
Upon factorisation;
x(x² + 5) – 9(x² + 5).
Read more on factorisation by grouping;
#SPJ5
the ratio would be 30:70
Answer:
This is the same as writing 7^8 when using a keyboard.
The exponent 8 refers to how many copies of the base "7" that are multiplied.
5.0 days
46.6 days
66.7 days
An explanation would be great help.
The correct answer is:
46.6 days
Explanation:
The general form for exponential growth is
, where A is the total amount, p is the initial amount, r is the percent of growth, and t is the amount of time (in this case, days).
We do not know the initial amount, the total amount, or the amount of time. We do know that r, the percent of growth, is 1.5%; 1.5% = 1.5/100 = 0.015:
We also know we want the total amount, A, to be twice that of the initial amount, p:
Divide both sides by p:
Using logarithms to solve this,