Find the critical value zα/2 that corresponds to a 83% confidence level
The critical value zα/2 that corresponds to a 83% confidence level is 1.37.
The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation[/tex]
Given that the confidence level (C) = 83% = 0.83
α = 1 - C = 0.17
α/2 = 0.17/2 = 0.085
The z score of α/2 corresponds with the z score of 0.415 (0.5 - 0.085) which is equal to 1.37
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Solve for x
2(x−1)=5(x−2)
Give your answer as an improper fraction in its simplest form.
Step-by-step explanation:
2(x-1)=5(x-2)
=2x-2=5x-10
=2x-5x= -10+2
= -3x= -8
=
[tex] \frac{8}{3} [/tex]
Answer:
[tex]x \: = \: \frac{8}{3} [/tex]Step-by-step explanation:
♤ Given Question:-To solve for x♤ Given Equation:-2(x−1)=5(x−2)♤ Solution:-2(x - 1) = 5(x - 2)
=> 2 × x - 2 × 1 = 5 × x - 5 × 2 [Distributive property]
=> 2x - 2 = 5x - 10 [Simplification]
=> 5x - 2x = 10 - 2 [Bringing like terms on one side]
=> 3x = 8 [Simplification]
[tex] = > x = \frac{8}{3}(ans) [/tex]
[In simplest form of improper fraction]
Craig has a job waiting tables where he earns $3.45 per hour plus tips. Craig earned $73.68 in tips during his shift yesterday.
If x represents the number of hours Craig worked yesterday, which of the following equations can be used to find the amount of money Craig earned yesterday?
A. y = 3.45x - 73.68
B. y = 73.68x + 3.45
C. y = 3.45x + 73.68
D. y = 73.68x - 3.45
During a 4-day back-to-school promotion, The Cone Shop sold 232 chocolate sundaes, 181 butterscotch sundaes, 68 strawberry sundaes, and 55 black-and-white sundaes. The shop sold the same number of sundaes each day. How many sundaes were sold each day?
Answer:
536
Step-by-step explanation:
Answer:
536
Step-by-step explanation:
just add all of then together 232 + 181=413 413+68+55
How can magnets cause objects to have kinetic energy? How can magnets cause objects to move? Use and bold these key words in your answer. convert, kinetic energy, potential energy, magnets
Answer:
If there is a system of magnets being held in place, there is potential energy
Step-by-step explanation:
pretty sure you've seen this answer before but 8ts right so just go along with it ok bud?
Answer:
Okay
Magnets work because opposite poles are attracted to each other, this is how the objects move (depending on how the atoms and how to iron is, it could be much stronger or weaker)
If there is a system of magnets there is potential energy, when you let go of the magnets (or when they stick together) it converts the potential energy to kinetic energy because it moved.
Step-by-step explanation:
The question is in the image! Please answer quickly.
Answer:
She thought the multiplication symbol was the addition symbol
actual answer: 1.39 x 10^12
Step-by-step explanation:
If it was addition, then she’d be correct;
6.75x10^6 + 0.2x10^6
= (6.75 + 0.2)x10^6
= 6.95x10^6
But really, it was a multiplication, meaning the answer really is;
(6.95x10^6)x(0.2x10^6)
= 1.39 x 10^12
This graph shows a system of equations what is the solution to the system of equations 1.(-2,2) 2.(2,2) 3.(2,-2) 4.(-2,-2)
Answer:
I honestly don't know that fashoo
Angle ABC And BCA a are complementary angle ABC is 85° if angle BCA is named as 3b -7 what could be the value of b?
Which of the following is not a solution of the equation below (3x(x-1)(x-2)=0
What is the options?
3x-1 over 5 = x+1 over 3
I need asap
Answer:
(3x-1)/5= (x+1)/3
3(3x-1)=5(x+1)
then solve which the final answer will give you x=8
I need to know that answer please help if you can
Answer:
$180
Step-by-step explanation:
y = 30x +150
30(1) + 150
= 180
2). You are to construct the walls for the storage building that will be 8' high; using the
dimensions previously given, how many sheets of paneling will be needed to cover all four
walls? (1 panel size is 4' wide and 8' tall).
3). The vertical members for the wall are spaced 16" apart. How many vertical members is
needed for a wall 12' long?
Answer:28
Step-by-step explanation:
Jack bought a 1/4 pound of salami and 1 2/3 pounds of Ham at the deli. Both items are on sale for $12 per pound. What is the total cost?
Answer:
Salami: $3.00
Ham: $ 8.00
Step-by-step explanation:
12 * 1/4 = 12/4 = $3.00
12 * 2/3 = 24/3 = $8.00
Pleased help math experts urgent
Answer:
1. get closer to 0
2. symmetrical across y=-x
3. x cannot be equal to 0
4. decreasing if x<0, increasing if x>0
Step-by-step explanation:
yes
Question: What does the slope represent in this situation?
Answers:
(A) The total cost of the tomatoes
(B) the cost for each pound of tomatoes
(C) the total number of pounds of tomatoes
(D) the number of pounds of tomatoes for each dollar paid
Could anybody help me out with this?
I would really appreciate it! (Algebra Problem)
Answer:
44
Step-by-step explanation:
You substitute 9 for x and then work it out following the order of operations.
f(9) = | 1-5(9) |
= | 1-45 |
= | -44 |
= 44
Answer: 44
Step-by-step explanation:
Is 3/7 and 10/21 proportional ? 15 points
Answer:
NOT proportional.
Step-by-step explanation:
Get a common denominator of 21 by multiplying 7 and 3 by 3.
[tex]\frac{3}{7}(\frac{3}{3})=\frac{9}{21}[/tex]
When both fractions have the same denominator, their numerators are different. Therefore, they are NOT proportional.
4e+ g2- Зе – 9 – g help
Answer: e + g2 - g - 9
Step-by-step explanation:
guys help right now i need a answer
Answer:
Step-by-step explanation:
Four quadrants:
Quadrant I (right side, above the x-axis to the right of the y-axis).
Quadrant II (left side, above the x-axis to the to the left of the y-axis).
Quadrant III ( left side , below the x-axis to the left of the y-axis).
Quadrant IV (right side, below the x-axis to the right of the y-axis
Y
l
II (-x, y) l I (x, y)
x l x
III l IV
(-x, -y) l (x, -y)
l
Y
Now you can answer the questions by locating the point and explain.
Please help me with this question. What formula would you use to find the missing lengths of the right triangles?
a2 + b2 = c2 can be use to find missing lengths of the right triangles
Michael paid an entrance fee of $8 plus an additional $2.25 per game at the bowling alley. He spent $50.00. Write and solve an equation to determine how many games Michael played.
Answer:
4
Step-by-step explanation:
$8.00+$2.25 = $10.25
$50.00÷$10.25= 4.
state whether slope will be positive, negative, or zero.
(-2,3) (-1,-3)
Answer:
the Slope is 0 because the x value is going up as the y stays the same
Brainliest please
This diagram shows a pre image triangle ABC and its image triangle A'B'C.,after a series of transformations. Select from the drop down menu to correctly complete the transformations. NEED HELP ASAP!!!!
Answer:
First blank: translated
Second blank: Reflected across the x axis
Third blank: Rigid (if that's an answer choice)
Fourth blank: congruent
Step-by-step explanation:
solve the equation and justify each step using the algebraic properties of equality
Answer:
-5
Step-by-step explanation:
3x=-13-2
3x=-15
x=-5
Does anyone know what 1.2 divided by 0.4 is?
Answer:
it's 3. how could u not know that 0.4 x 3 = 1.2 duh
The value of the expression is 3.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
1.2 ÷ 0.4
= 1.2 / 0.4
The decimal point gets canceled.
= 12/4
= 3
Thus,
The value of the expression is 3.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
Find the volume of the following cone.
Round your answer to one decimal place.
Answer:
429.4 cubic units
Step-by-step explanation:
Volume of a cone = pi*r^2*(h/3)
height = 9
radius = 6.75
pi*6.75^2*(9/3) = pi*45.5625*3 = 136.6875pi
136.6875*pi is around 429.416 -> rounded = 429.4
Answer:
See answer below.
Step-by-step explanation:
[tex]V = \frac{1}{3} \pi r^2h[/tex]
[tex]V = \frac{1}{3}\pi (6.75)^2(9)[/tex]
[tex]V = 3\pi (6.75)^2[/tex]
[tex]V = 136.6875\pi[/tex]
V = 136.68.76(3.14) or use solve with calculator π
[tex]V = 429.19876 \\V = 429.414458[/tex]
*What is the correct value of b?
~50/100 = b/28
-b=14
-b=20
-b=10
*What is the value of n?
~25/100 = 7/n
-n=28
-n=24
-n=32
Answer:
-b = 14
-n = 28
Step-by-step explanation:
For b
50/100=b/28 cross-multiply
1400= 100b divide both sides by hundred
-b = 14
For n
25/100= 7/n cross multiply
25n = 700 divide both sides by 25
-n = 28
I’m in 7th grade and don’t know this. Dndjdjdjdjsnnsndxj
Answer:
Step-by-step explanation:
Let's go:
Right: have an angle measuring 90°.
Equilateral: all 3 sides of triangle are same value.
Obtuse: have an angle measuring > 90°
Scalene: all 3 sides of triangle are different value.
In this case:
The Green one is Scalene and obtuse.
The red one is equilateral.
I hope I've helped you.
x t-3 = y solve for t.
Answer:
t = (y+3)/x
Step-by-step explanation:
Step 1: Add 3 to both sides.
[tex]tx - 3 + 3 = y + 3[/tex] [tex]tx = y + 3[/tex]Step 2: Divide both sides by x.
[tex]\frac{tx}{x} = \frac{y+3}{x}[/tex] [tex]t = \frac{y+3}{x}[/tex]Therefore, the answer is [tex]t = \frac{y+3}{x}[/tex].
[tex]\sf{Heya}[/tex] ~
*ੈ✩‧₊˚ [tex]\mathfrak{Satori~ Tendō~is~here~to~help}[/tex] ੈ✩‧₊˚
[tex]X~t-3=y[/tex] Solve for t.[tex]\sf{solve~for~t,~Xt~-~3=y~:~t=\frac{y~+~3}{X} ;~X~∉~0[/tex]
STEPS :[tex]\bold{Add~3~to~both~sides~:}[/tex]
[tex]\sf{Xt~-~3~+~=~y~+~3}[/tex]
[tex]\bold{Simplify~:}[/tex]
[tex]\sf{Xt~=~y~+~3}[/tex]
[tex]\bold{Divide~both~sides~by~X;}~X~∉~0[/tex]
[tex]\sf{\frac{Xt}{X}~=~\frac{y}{X}~+~\frac{3}{X};~X~≠0[/tex]
[tex]\bold{Simplify~:}[/tex]
[tex]\sf{t=\frac{y~+~3}{X};~X~≠0[/tex]
Hopefully This Helps !
#LearnWithBrainly
[tex]\underline{Answer~:}[/tex]
[tex]\sf{Tendou}[/tex] ~
Refer to the map shown in exercise.2. If m.angle 1 os 64° what is the measure of angle.2?
Answer:180
Step-by-step explanation:
