Answer:
A. is incorrect. He has to divide 76 by 19, instead of subtracting 19 to 76.
B. This equation has one solution. v=4
Step-by-step explanation:
Hi, Martin’s answer is incorrect.
A. He has to divide 76 by 19, instead of subtract 19 to 76.
The correct steps are:
19v = 76
Since 19 is multiplying the variable, to eliminate it we have to divide by 19.
v = 76/19
v = 4
B. This equation has one solution. It’s v=4
Feel free to ask for more if needed or if you did not understand something.
Answer:MAFS.912.A-CED.1.1
The measures of three sides of a triangle can be represented by 2x, 3x - 5, and 4x + 2.
The perimeter of the triangle is 65 inches.
a) Give an equation to represent this situation.
b) Solve for x.
c) What are the three lengths of the triangle?
Answer:
1/221
Step-by-step explanation:
There are 4 kings in a standard deck of cards
P( one king) = number of kings/ number of cards
4/52
= 1/13
Then we do not put the card back. Now we have 3 kings and 51 cards
P(2nd king) = number of kings/ number of cards
=3/51
=1/17
We need to multiply these together
P( one king, 2nd king without replacement) = 1/13*1/17 = 1/221
Answer:
hey mate!!
Step-by-step explanation:
x
2
−25=144
X^2=144+25
x^2=169
x=√169
x=13
Sorry mate check out the answer !
Answer:
Around 2397 Americans must be surveyed to get a margin of error of 2%.
Step-by-step explanation:
We are given the following in the question:
Proportion of US residents who thinks marijuana should be made legal = 48%
We have to construct a 95% confidence interval.
Margin of error = 2% = 0.02
Formula for margin of error =
Putting values, we get,
Thus, around 2397 Americans must be surveyed to get a margin of error of 2%.