Answer:
Due to the higher margin of error, the 1st analyst will have a wider interval.
Step-by-step explanation:
Width of a confidence interval:
The width of a confidence interval is twice its margin of error, meaning that the sample with the largets margin of error will be wider.
1st analyst:
Margin of error of 0.85, so width of 0.85*2 = 1.7
2nd analyst:
Margin of error of 0.7, so width of 0.7*2 = 1.4
Which analyst will have a wider interval?
Due to the higher margin of error, the 1st analyst will have a wider interval.
Question 40 of 43
Researchers conduct a study to evaluate the level of
pollution present in a river. They select several locations
along the river and then take a sample of water from each
location.
What is the population under study?
ILL GIVE BRANLIEST OR HOWEVER YOU SPELL IT
Answer:
c
Step-by-step explanation:
i did it
Answer:
The correct answer is C.
Step-by-step explanation:
I did the exam.
Help plz:)))I’ll mark u Brainliest
Answer:
= 110 g AgCl
Step-by-step explanation:
NaCl + Ag(NO3) → AgCl + NaNO3
↓ ↑
mol → mol
NaCl AgCl
[tex]\frac{45 g NaCl }{} \frac{1 mol NaCl}{57.44 g NaCl} \frac{1 mol AgCl}{1 mol NaCl } \frac{143.87 g AgCl}{1 mol AgCl} == 110 g AgCl[/tex]
Chelsea bought a computer on Monday for $1,300. Its value is predicted to decrease by $250 per year. Her brother George also bought a computer on Monday. The function g(x) = 1,100 – 175x predicts how the value of his computer is expected to change after x years.
Whose computer is expected to have a greater value when it is 3 years old, and how much greater will it be?
A) Chelsea’s computer is expected to have a value of $25 greater.
B) George’s computer is expected to have a value of $25 greater.
C) Chelsea’s computer is expected to have a value of $125 greater.
D) George’s computer is expected to have a value of $125 greater.
Answer:
The correct answer is B. George’s computer is expected to have a value of $25 greater.
Step-by-step explanation:
Since Chelsea bought a computer on Monday for $ 1,300, and its value is predicted to decrease by $ 250 per year, while her brother George also bought a computer on Monday, and the function g (x) = 1,100 - 175x predicts how the value of his computer is expected to change after x years, to determine whose computer is expected to have a greater value when it is 3 years old, and how much greater will it be, the following calculation must be performed:
Chelsea:
1,300 - (250 x 3) = X
1,300 - 750 = X
550 = X
George:
1,100 - (175 x 3) = X
1,100 - 525 = X
575 = X
Therefore, George’s computer is expected to have a value of $ 25 greater.
For every 1000 videos a channel gets it makes £2.50 from ad revenue. How many videos will the channel need to make £1
Answer: 400 videos
Step-by-step explanation:
1000/1 x 1/2.5 = 400
What is the measure of angle x?
Enter your answer in the box.
Answer:
x = 48º
Step-by-step explanation:
x = 90 -42
x = 48º
Help me please this is very hard i got 8ft but it said I was wrong!?
Answer:
is the answer 200/3 Or 66.667 ft
50 points! Can you please be honest and answer these 3 questions.
Answer:
1. 5/10
2. 0.54
3. √3 and -1/16????
I think
sorry if I wrong
How many million bacteria were in the dish at 10 a.m.?
Answer:
Fraction form: 1/4
Exponential form: 2^-2
Expanded form: 1/4 (Not sure if thats correct)
Step-by-step explanation:
Answer:
Its 1/4 he was right
Step-by-step explanation:
24 mi
32 mi
c
What is the length of the hypotenuse?
c =
miles
Answer:
40 mi
Step-by-step explanation:
a² + b² = c²
24² + 32² = c²
1600 = c²
√1600 = c
c = 40
Suppose $3500 is invested at a rate of 5% per year compounded monthly.
what's the answer to the picture below
9514 1404 393
Answer:
B. √900
Step-by-step explanation:
The solutions to the equation are ...
x = ±√900 = ±3√100 = ±10√9 = ±30
Of the offered choices, the only one that matches any of these is ...
√900
I need help please this isath i need my grade thx alot
Answer:
A, -475ft
Step-by-step explanation:
Answer: -475 ft
Step-by-step explanation: -95 x 5= -475
Complete the square
to find the vertex
of this parabola.
2
x - 4y-12 x +68=0
Answer: (6,8)
Step-by-step explanation:
Answer:
(6, 8)
Step-by-step explanation:
A bag contains 56 marbles: 7 red, green, 11 yellow, 17 brown, and 13 blue.
If a marble is chosen at random, what is the probability that the marble is green?
Answer:
8/56
Step-by-step explanation:
Add up all other marble colors then find the difference from the total.
Answer:
1/7
Step-by-step explanation:
there are 8 green marbles out of 56 so the probability would be 8/56 which simpliefies to 1/7 or 14.285714%
John's age increased by 11 is 5 less than 5 times his age. How old is he?
If x represents John's age, which of the following equations could be used to solve this problem?
O x + 11 - 5 = 5x
O x + 11 = 5x -5
O x + 11 = 5 - 5x
i need help pls!
this test is about angles, and i am having trouble with it.
Answer:
alternate exterior angles
solve for x if 2(1+3x) =3
Answer:
x is 5
Step-by-step explanation:
Someone please help me!!!!!
determine if the two triangles are congruent. If they are, State how you know. NO LINKS!!!!
9514 1404 393
Answer:
SASnotSSSAASStep-by-step explanation:
Look at the angles and sides that are marked, and their relationships to each other. Shared sides are congruent to themselves. Vertical angles are congruent. The possible congruence theorems are ...
SSS SAS AAS ASA (and HL for right triangles--not applicable here)
__
1. two marked sides and the vertical angle between are congruent. The triangles are congruent by the SAS theorem.
2. only one side and angle are marked. Insufficient information. Not congruent.
3. two marked sides and the shared side are congruent. The triangles are congruent by the SSS theorem.
4. the vertical angles, the marked angles, and the marked sides are congruent. The triangles are congruent by the AAS theorem.
Can someone please help me I will mark u brilliant
Answer:
According to the histogram, the data points from 15-29 would be 12.
Step-by-step explanation:
No explanation needed.
Answer:
12
Step-by-step explanation:
Add the number of data points that are greater or equal to 15 (4+2+6) = 12.
One pipe fills an empty tank in 3 hours. A second pipe fills the same tank in 6 hours. A third pipe can empty the full tank in 5 hours. If all three valves were left open, how long would it take to fill the empty tank?
In ΔMNO, the measure of ∠O=90°, OM = 69 feet, and NO = 16 feet. Find the measure of ∠N to the nearest tenth of a degree.
9514 1404 393
Answer:
76.9°
Step-by-step explanation:
The relevant trig relation is ...
Tan = Opposite/Adjacent
tan(N) = OM/ON
N = arctan(OM/ON) = arctan(69/16)
N ≈ 76.9°
Similar Triangles
A triangle has two angles measuring 90° and 50°, calculate the third angle of the triangle.
a. 50°
b. 40°
c. 45°
d. 75°
Please select the best answer from the choices provided
Answer:
B. 40°
Step-by-step explanation:
I calculated it logically
Luigi recorded the temperature in his garden at diffternt times of the same day
[tex]please tell \: the \: answer[/tex]
Answer:
wdym
Step-by-step explanation:
will give more p0ints if correct
Answer:
REVENGE
Step-by-step explanation:
Answer:
Answer is im not sure
Suppose you invest $200 at a 7% annual rate for one year. How much interest would you earn?
a bit of help here! Ill give branliest! :)
Answer:
whats the question?
Step-by-step explanation:
Please help fasst???!!! Plzzzx
Answer:
y = 10(½)^(x)
Step-by-step explanation:
In writing exponential functions passing through points, we will just substitute the x and y values in each case into y = ab^(x).
Now, for point (-1, 20), the exponential function is; 20 = ab^(-1)
20 = a/b
For the point (1, 5), the exponential function is; 5 = ab^(1)
5 = ab
From 20 = a/b, we have; a = 20b
Thus, putting 20b for a in 5 = ab, we have;
5 = 20b(b)
b² = 5/20
b² = 1/4
b = √(1/4)
b = 1/2
Since a = 20b, then;
a = 20 × 1/2
a = 10
Thus, from y = ab^(x), we have;
y = 10(½)^(x)
HELP. LIKE- WHICH ONE IS THE ANSWER? ALSO EXPLAIN A BIT
Answer:
perpendicular lines are when two lines intercect in a right angle. so it would be A then
Step-by-step explanation:
A has a right degree angle where the two lines cross, so this is the answer
B that is not a right angle it has acute and obtuse angles
C does not even have two lines that touch
D the two lines don't cross at all
E is an acute angle
B, C,D, and E are not the answers
The circumference of the tire of Melvin’s cycle is 2.5m. He took part in a race of 2km. When
he had covered 1.2km, the tire burst. To finish the race, how many more times should the wheel go
round?
Answer:
320
Step-by-step explanation:
Distance to go
2km - 1.2 km = 0.8km = 800m
Revolutions needed
800/2.5 = 320