Answer:
b. The margin of error would decrease.
Step-by-step explanation:
Margin of error of a confidence interval:
The margin of error of a confidence interval has the following format:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which z is related to the confidence level, [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
This means that the margin of error is inversely proportional to the size of the sample, which means that if the sample size increases, the margin of error decreases.
In this question, the sample size is increased, leading to a smaller margin of error. So the correct answer is given by option b.
what shape is that? Please don't answer the question, i just need to know the shape.
Answer:
Rectangle.
Step-by-step explanation:
It has 4 sides.
Answer:
It is a Wedge
Step-by-step explanation:
Because if you were to compare it to a rectangle which it look like it is a 3D figure and it gets slightly skinnier at the top so it is indeed a wedge
9. Please help besties
Or user elpink25
Answer:
1
Step-by-step explanation:
The method I used is elimination.
x - 2y = 1
-x - 4y = -7 To find y, we need to cancel the x by using it's opposite. This also affects the other numbers in the equation. This makes positive 4 into a negative and positive 7 into a negative.
Now we are left with, -2y = 1
-4y = -7
Add and you get, -6y = -6
Divide -6y/-6 = -6/-6
Our answer is, y = 1.
graph the function y=x3+3x2-1. based on the graph what is the least possible x-value if y=0? round your answer to the nearest hundredth, if necessary
o -2.88
o -2.00
o -0.65
o -0.53
Answer:
-2.88
Step-by-step explanation:
When graphed Y=0 crosses the X-axis three times
X= -2.88, -0.65, 0.53
Answer:
It's A on edge or -2.88
Step-by-step explanation:
Recall that the angles of every triangle sum to 180°. The three angles of a triangle ABC are even consecutive integers. Find the measures of all three angles of the triangle, listing them from the smallest to the largest angle. A is the smallest angle: degrees B is the next angle: degrees C is the largest angle: degrees
Answer:
A = 58
B = 60
C = 62
Step-by-step explanation:
A + B + C = 180
A = 58
B = 60
C = 62
58 + 60 + 62 = 180
Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x<53)?
A. 0.84
B. 0.16
C. 0.025
D. 0.975
The correct answer is A. 0.84
The value of P(X<53) is 0.84 if the Z = 1 and normal distribution has a mean of 50 and a standard deviation of 3 option (A) is correct.
What is a normal distribution?It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.
We know,
[tex]\rm Z = \dfrac{X-\mu}{SD}[/tex]
X = 53, μ = 50, and SD = 3
[tex]\rm Z = \dfrac{53-50}{3}[/tex]
Z = 1
From the Z table.
The value of P(X<53) = 0.84
Thus, the value of P(X<53) is 0.84 if the Z = 1 and normal distribution has a mean of 50 and a standard deviation of 3 option (A) is correct.
Learn more about the normal distribution here:
brainly.com/question/12421652
#SPJ2
What is the solution to |2x-8|<2?
Answer:
A) 3<x<5
Step-by-step explanation:
Given: |2x-8|<2
Make two inequalities:
First inequality:
2x-8<2
2x<10
x<5
Second inequality:
2x-8>-2
2x>6
x>3
Therefore, your solution is 3<x<5 since the two inequalities pass each other, making an "and" inequality.
Which table represents a linear function?
1) f(x)
2) g(x)
3 h(x)
4 k(x)
Answer: f(x)
Step-by-step explanation:
Five different DVDs cost:
$11.50, $11.00, $17.00, $21.25, $16.00
median =
$16.00
$10.25
$15.35
Answer:
16
Step-by-step explanation:
mode = the most
mean = ave
median = the no. in between
so arrange those five costs the one in the middle is 16
One earthquake has MMS magnitude 3.2. If a second earthquake has 390 times as much energy (earth
movement) as the first, find the magnitude of the second quake.
What is the measure of angle R?
Enter your answer as a decimal in the box. Round only your
final answer to the nearest hundredth.
m_R=
Answer:
28.07°
Step-by-step explanation:
sin R = 8/17
arcsin R = 28.07
plz help i give 50 points
Answer:
area of trapezium = 20 in^2
Step-by-step explanation:
here's your solution
==> area of trapezium = 1/2*(sum of parrel side)*distance between them
==> length of parrel sides = 6 in and 2 in
==> height = 5 in.
==> area of trapezium = 1/2(6 + 2) * 5
==> area of trapezium = 20 in^2
hope it helps
Step-by-step explanation:
sorry for this
"i try so can you rate"
Calculate the area of the following image:
5x-6=29. What does x equal
Answer:
Solution given:
5x-6=29.
5x=29+6
x=35/5=7
x=7 is your answer
Answer:
x=7
Step-by-step explanation:
Kurt recorded the amount of rainfall in each month for one year. What was the total rainfall that year?
Answer:wheres the question
sadStep-by-step explanation:
sadsadsa
Find the area of this parallelogram. Be sure to include the correct unit in the answer! (cm) , (cm2) , (cm3)
HELP PLEASE ! asap. i have a 30% in geometry & really tryna pass before summer .
Answer:
100cm^2 is what it means
Answer:
156 cm²
Step-by-step explanation:
The area of a parallelogram is found by finding the product of its base and perpendicular height. Here, the base is 12cm and the perpendicular height is 13cm.
12cm x 13cm = 156 cm²
Solve 3x^2 if x is 10
By the way, the x is a variable
300 is your answer.......
Plz help me well mark brainliest if correct!
Answer:
Two weeks later
Step-by-step explanation:
There are 14 days in two weeks, and there are 14-day intervals between dates.
Answer:
2 weeks later
Step-by-step explanation:
Two weeks is equivalent to 14 days
What is the slope of the line graphed below? (-1,3) (-2,-1)
Answer:
the slope of (-1,3) (-2,-1) is 4
What is the length of the third side of a right triangle if it is known that the two of the sides have lengths 9 and 12. How many solutions does this problem have
Answer:
34 the answer
Step-by-step explanation:
1) A bag contains six red marbles and eight blue marbles. You randomly pick a marble and then pick a second marble without returning the marbles to the bag. Both marbles are red.
Answer:
You would have 4 red marbles and 8 blue marbles since you didn't return the ones you took out to the bag.
Step-by-step explanation:
6 - 2 = 4
The 8 would stay the same
There for you would have 4 red marbles and 8 blue marbles left in the bag. Totalled you have 12 marbles in the bag and 2 out of the bag. (8 + 4 = 12)
Including the marbles in and out of the bag you have 14 marbles. The 12 inside the bag + the 2 outside of the bag = 14 marbles totalled.
A:Corresponding angles
B:Alternate exterior angles
C:Vertical angles
D:Alternate interior angles
Answer:
B: alternate exterior angle
hope it helps.
Answer:
the relationship between t and y is B:Alternate exterior angles
Triangle UVW has a perimeter of 11.5 units. Solve for y.
Answer:
The answer for y is 4 units
Step-by-step explanation:
The obvious question to ask in this situation is, “how many miles does Joseph travel on Mondays”? To compute, we each distance: 3 + 6 + 6 = 15.
Joseph travels 15 miles on Mondays.
Another way to work with this situation is to draw a shape that represents Joseph’s travel route and is labeled with the distance from one spot to another.
Notice that the shape made by Joseph’s route is that of a closed geometric figure with three sides (a triangle) (see figure 2). What we can ask about this shape is, “what is the perimeter of the triangle”?
Perimeter means “distance around a closed figure or shape” and to compute we add each length: 3 + 6 + 6 = 15
Our conclusion is the same as above: Joseph travels 15 miles on Mondays.
However, what we did was model the situation with a geometric shape and then apply a specific geometric concept (perimeter) to computer how far Joseph traveled.
Answer:
4 units
Step-by-step explanation:
Examine the figure of two parallel lines cut by a transversal.
What is the value of x?
Answer:
x=17
Step-by-step explanation:
The angles present are Alternative interior angles. That means that they are congruent. Meaning 4x+7 = 75. To solve for 7, you subtract 7 from both sides. That leaves you with 4x=68. Then you divide both sides with 4. Then you get x=17.
Hope this helps!
BTS!!
Answer:
x = 17
Step-by-step explanation:
75° and (4x + 7)° are alternate interior angles.
If two lines are cut by a transversal, then the alternate interior angles are congruent.
75 = 4x + 7
=> 4x = 68
=> x = 17
What is the simplified expression for Negative 3 c d minus d (2 c minus 4) minus 4 d?
Answer:2-3= ur answer then mutiply it by 4 then boom! hope helpsss\
Step-by-step explanation:
ILL GIVE BRAINLIEST PLS HELP DUE SOON!
Answer:
area of shaded portion = 30.5 cm²
Step-by-step explanation:
area of circle = πr² = (3.14)(5²) = 78.5 cm²
area of rectangle = L x W = 8 x 6 = 48 cm²
78.5 - 48 = 30.5 cm²
Which number line shows the graph of x 11?
OA
+
9
10 11 12 13 14
10 11 12 13 14
+
9 10 11 12 13 14
6 7 8 9
10 11 12 13 14
Answer:
B
Step-by-step explanation:
X ≥ 11 means that x could equal 11. The number is included on the answer. So, the circle on the number line has to be closed/filled in. X could be any number equal to or greater than 11, so the number line has to be shaded to the right. :D
A and B are independent events P(A)=0.50 P(B)=0.30 What is P(A/B)
Answer:
0.50
Step-by-step explanation:
just did it
What is the following simplified product? Assume x>0.
218x3 3.V10x4 – x15x?
0 244² √5% - 44² √10x
24x35x - 4x3 10X
24x3 75-4x310x
O 24x35x +4x® /10x
Answer:
[tex]24x ^{3} \sqrt{5 - 4x ^{3} } \sqrt{10x} [/tex]
If the average rate of change 10 is greater than the average rate of change of -12.5 explain why this is incorrect?
Answer:
Step-by-step explanation:
It's the magnitude of the average rate of change that's important here.
| -12.5 | is greater than | 10 |. The negative sign tells us that the function is decreasing on the given interval.
Morgan is a teacher and takes home 87 papers to grade over the weekend. She can grade at a rate of 9 papers per hour. How many papers would Morgan have remaining to grade after working for 7 hours?
Answer: 24
Step-by-step explanation: Delta math a=78+(7−1)(−9)
Answer:
2369.9
Step-by-step explanation:
Add it back
