Answer:
It is both -2 and 4
Step-by-step explanation: hope it helped!
How does the increase in confidence level affect the interval width and margin of error?
Answer:
1. Three things influence the margin of error in a confidence interval estimate of a population mean: sample size, variability in the population, and confidence level. For each of these quantities separately, explain briefly what happens to the margin of error as that quantity increases.
Answer: As sample size increases, the margin of error decreases. As the variability in the population increases, the margin of error increases. As the confidence level increases, the margin of error increases. Incidentally, population variability is not something we can usually control, but more meticulous collection of data can reduce the variability in our measurements. The third of these—the relationship between confidence level and margin of error seems contradictory to many students because they are confusing accuracy (confidence level) and precision (margin of error). If you want to be surer of hitting a target with a spotlight, then you make your spotlight bigger.
Answer:
the three things influence the margin of error in a confidence interval estimate of a population mean - sample size variability in the population and confident level as the variability in the population increases the margin of error increases. as the cofidence level increases, the margin of error increases.
Step-by-step explanation:
hope this helps :)
Madison’s manicure cost $25.90. She wants to leave a 15% tip. Which of the following is closest to the amount of the tip she wants to leave?
A. $2.00
B. $3.00
C. $4.00
D. $5.00
Answer:
C) $4.00
Step-by-step explanation:
Here's how I did it:
So we're trying to find 15% of $25.90... we can say that the $25.90 is 100% of Madison's Manicure... 100% can also be written as 1.0... why? well if 1.0 is 100%, then we can say any other percentage is proportionate to this... for example... 0.25 is 25% of 1.0... In this case... we are trying to add an additional 15% to the 100% price of the manicure... (Remember... with our proportion we can say that 115% is the same as 1.15) If we take our proportion:
1.15 x 25.90 = 3.89
4.00 is the closest to 3.89
therefore the answer is C) $4.00
Part E
Christopher Columbus set sail from Spain in 1492. In what year did the Civil War end?
Answer:
The civil war ended in 1865
Answer:
1865
Step-by-step explanation:
The bottom angles are both 68 degrees. Using the angles, what type is this triangle?
Answer: right angle
Step-by-step explanation:
T/F. A triangle is an equilateral triangle if and only if it's equiangular.
O
True
False
Answer:
true
Step-by-step explanation:
A group of friends ordered two pizzas, one with pepperoni and one with mushrooms and green peppers. A plain pizza costs 9 dollars. Each extra topping costs 1 dollar. How much did the two pizzas cost?
Answer:
23
Step-by-step explanation:
Layla has 25 toys in her toy box, and she adds 4 new toys every month. Based on this information, which equation best shows the relationship between the number of toys Layla has in her toy box, y, and the number of months that have passed, x?
y = 25x
y = 29x
y = 4x
y = 4x + 25
x is called the _____ When using scientific notation the _____ is 10.
Answer:
X is called the power of
1 is 10
Thank you and please rate me as brainliest as it will help me to level up
Peter wants to make cookies. To make cookies, he needs 2/3 of a cup of flour per batch of cookies. If Peter has 10 cups of flour, then how many batches of cookies can Peter make?
Answer:
he can make 5 batches of cookies
Step-by-step explanation:
Kiran read for x minutes, and andre read for 5/8 minutes more than that. Write an equation that relates the number of minutes Kiran read with y: the number of minutes that Andre read. Use decimals in your equation. Use lower case letters.
Answer:
y=x+0.625
Step-by-step explanation:
Since, x represents the number of hour kiran read,
According to the question,
The number of hours Andre read = 5/8 more than the number of hour kiran read
= 5/8 more than x
= x + 5/8 of x
Las garrapatas de venados pueden ser portadoras de la enfermedad de Lyme o de la Erhilchiosis granulo citica humana (HGE, por sus siglas en ingles). Con base en un estudio reciente, suponga que 16% de todas las garrapatas en cierto lugar portan la enfermedad de Lyme, 10% portan HGE y 10% de las garrapatas que portan por lo menos una de estas enfermedades en realidad portan las dos. Si determina que una garrapata seleccionada al azar ha sido portada de HGE
Answer:
th eanwser isy se
Step-by-step explanation:
Rewrite the equation by completing the square. X^2-2x-35
In Connecticut, there are a total of 187 state legislators. If the number of representatives is 7 more than four times the number of senators, how many senators are in Connecticut?
just need the equation please
Answer:
36 senatorsStep-by-step explanation:
Let the number of representatives be r and senators be s
The we have system of equations:
r + s = 187r = 4s + 7Substitute r in the first equation:
4s + 7 + s = 187 - required equationSolving for s:
5s = 180s = 180/5s = 36How to simplify 3/18 it’s a fraction and it’s really hard can someone go step by step how to do it I need it ASAP
Answer:1/6
Step-by-step explanation: divide both sides by 3 as 3 itself and 18 can be divided by 3
Which of the following ways can be used to determine whether a linear relationship is proportional? Select all that apply.
Multiple select question.
cross out
A)
The equation is in y = kx form.
cross out
B)
The equation is in y = mx + b form.
cross out
C)
In a table, the ratios are not equivalent.
cross out
D)
In a graph, the line passes through the origin.
cross out
E)
The graph of the relationship is a straight line.
Answer:
I think its b
Step-by-step explanation:
Sorry if im wrong :(
The ways that can be used to determine whether a linear relationship is proportional are-
A) The equation is in y = kx form.
What is proportionality?In mathematics, proportionality indicates that two quantities or variables are related in a linear manner. If one quantity doubles in size, so does the other and so on.
Now the since the proportionality is the relationship in the linear manner.
This is represented as
x ∝ y.
⇒ x = ky
k is the constant of proportionality.
A direct proportionality can also be viewed as a linear equation in two variables with a y-intercept of 0 and a slope of k. This corresponds to linear growth.
Thus, the ways that can be used to determine whether a linear relationship is proportional are-
A) The equation is in y = kx form.
To learn more about proportionality :
https://brainly.com/question/2143065
#SPJ2
Simplify the following.
7^1=
4^0 =
6^-1 =
Answer:
1. = 7
2. = 1
3. = 0.16
Step-by-step explanation:
Jose sells beaded necklaces. Each large necklace sells for $5.60 and each small necklace sells for $4.70 How much will he earn from selling 5 large necklaces and 3 small necklaces?
Answer:
Large necklaces for 5 is $28.00 and small 3 necklaces is $14.10
Step-by-step explanation: $5. 60 times 5 equals to $28.00 and $4.70 times 3 equals $14.10
Answer:
The answer is $42.10
Step-by-step explanation:
All you have to do is multiply 5.6 by 5
and multiply 4.7 by 3
Then you add the products together to get your answer
What is the value of 'x'?
Answer:
93
Step-by-step explanation:
All the angles in a triangle add up to 180 degrees.
52 + 35 + x = 180
87 + x = 180
x = 93 degrees
WHAT IS THE VALUE OF R IN THE EQUATION? -1.5(4-R)=12
A. NEGATIVE SIX B. NEGATIVE FOUR C.POSITIVE 4 D.POSITIVE SIX
Answer:
just plug in the a b c and d for r and wich ever one makes that equatio equal then it that on
Step-by-step explanation:
Answer:
Step-by-step explanation:
-1.5(4-R)=12 divide both sides by -1.5
4-R=12/-1.5 calculate
4-R= -8 subtract 4 from both sides
-R=-8-4 calculate
-R=-12 multiply by -1
R=12
HARDEST QUESTION EVER! WHAT IS 2+2=? NOBODY CAN GET THIS
Answer:
4
Step-by-step explanation:
its 4 duh
Answer:
Step-by-step explanation:
2 + 2 = 4
Could anyone help me solve this problem ? It doesn’t have to be perfect
Answer:
x = 2
Step-by-step explanation:
If B and D are midpoints, then you have to similar triangles ACE and BCD that have a constant ratio on their corresponding sides.
That ratio is 1:2 for any side of triangle BCD compared to corresponding side on triangle ACE,
Then BD / AE = 1/2
cross multiplying:
2 * BD = AE
replacing with their expression in terms of x:
2 (5 x + 3) = 4 x + 18
using distributive property:
10 x + 6 = 4 x + 18
solving for x:
10 x - 4 x = 18 - 6
6 x = 12
x = 2
Two cars started moving in opposite
directions from the same point at the same moment
of time. If the speed of one car is 50 mph, and the
other car goes at a speed of 60 mph, how soon the
distance between them will become 1320 miles?
Answer:
12 hours
Step-by-step explanation:
what is the daily average snowfall
Answer:
you know i say ummm bout 10
3164 divide 45 fast plz fast
Answer:
70.31
Step-by-step explanation:
3164/31=70.31
Find k if y = 64 and x = 16
Answer:
Can you give a picture of what we are answering
Step-by-step explanation:
Slope pls help ASAP due at 5
Y=-2/1+5
It's going down 2 and over 1 on the right to the next point so it's the slope, and 5 is the y-intercept.
:L
Answer:
y=-2x+5
Step-by-step explanation:
the slope is -2/1 sooo -2 and they y intercept in 5 so u plug that into y=mx+5
3x-15=17-x. Check your solution
Answer:
x=1
Step-by-step explanation:
3x-15=17-x
3x-x=17-15
2x=2
x=1
Answer:
x=8
Step-by-step explanation:
3x-15=17-x move variable to the left and change its sign
3x+x-15=17 collect like terms
4x=17 + 15 (3x=x=4x)
4x= 32 divide both sides by 4
x=8 (dividing 4x by 4 cancels the 4,s out and leaves x)
The diagram illustrates a staircase with 14 steps and a total height of 252 cm:
What is the height of each of the 14 steps?
What is the slope? y = 3
1
2
3
0
Answer:
67
Step-by-step explanation:
there are 6 birds and you add 7 and this is what you get
Find the angle represented by x (rounded to the nearest tenth of a degree).
A)32.6°
B)36.4°
C)37.8°
D)38.7°
Answer:
Option (D)
Step-by-step explanation:
By applying sine rule in the triangle shown,
Since, [tex]\text{sin}\theta=\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
By this rule,
[tex]\text{sinx}=\frac{\text{5000}}{8000}[/tex]
x = [tex]\text{sin}^{-1}(\frac{5}{8})[/tex]
x = [tex]\text{sin}^{-1}(0.625)[/tex]
x = 38.682°
≈ 38.7°
Therefore, Option (D) is the correct option.
