Answer:
717.3
Step-by-step explanation:
717.25
717.3
Hi there!
»»————- ★ ————-««
I believe your answer is:
717.3
»»————- ★ ————-««
Here’s why:
The value of the hundredths place determines if we should round the tenths place up or down.⸻⸻⸻⸻
[tex]n \leq 4\text{ - Round Down}\\n \geq 5\text{ - Round Up}[/tex]
⸻⸻⸻⸻
Since the hundredths place is greater than or equal to 5, we will round up.717.25
⸻⸻⸻⸻
[tex]717.25 \approx\boxed{717.3}[/tex]
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
The personnel director of a large hospital is interested in determining the relationship (if any) between an employee's age and the number of sick days the employee takes per year. The director randomly selects eight employees and records their age and the number of sick days which they took in the previous year.
Employee 1 2 3 4 5 6 7 8 9 10
Age 30 50 40 55 30 28 60 25 30 45
Sick Days 7 4 3 2 9 10 0 8 5 2
The estimated regression line and the standard error are given.
Sick Days = 14.310162-0.2369(Age)
Se= 1.682207
Find the 90% confidence interval for the average number of sick days an employee will take per year, given the employee is 22.
Answer:
CI ( 90% ) = ( 5.9694 ; 12.2272)
Step-by-step explanation:
The regression line is:
Sick Days = 14.310162 - 0.2369 (Age)
The employee 22 years old will have:
SD = 14.310162 - 0.2369 (22)
SD = 14.310162 - 5.2118 ⇒ SD = 9.0983
SE = 1.682207
And CI 90 % α = 10% α =0.1 α/2 = 0.05
sample size n = 10
degree of freedom df = n - 2 df = 8
From t-student table we find t(c) = 1.86
CI ( 90% ) = ( SD[22 years]) ± t(c)*SE
CI ( 90% ) = 9.0983 ± 1.86*1.682207
CI ( 90% ) = 9.0983 ± 3.1289
CI ( 90% ) = ( 5.9694 ; 12.2272)
Using the t-distribution, it is found that the 90% confidence interval for the average number of sick days an employee will take per year, given the employee is 22 is (6, 12.2).
We are given the standard error for the sample, which is why the t-distribution is used to solve this question.
The information to build the interval is:
Sample mean of [tex]S(22) = \overline{x} = 14.310162 - 0.2369(22) = 9.1[/tex].Standard error of [tex]s = 1.682207[/tex]. Sample size of [tex]n = 10[/tex].The confidence interval is:
[tex]\overline{x} \pm ts[/tex]
The critical value, using a t-distribution calculator, for a two-tailed 90% confidence interval, with 10 - 1 = 9 df, is t = 1.8331.
Then:
[tex]\overline{x} - ts = 9.1 - 1.8331(1.682207) = 6[/tex]
[tex]\overline{x} + ts = 9.1 + 1.8331(1.682207) = 12.2[/tex]
The 90% confidence interval for the average number of sick days an employee will take per year, given the employee is 22 is (6, 12.2).
A similar problem is given at https://brainly.com/question/15180581
alive for the equation
y-7=8
so what I do is caunt or just add 7 +8 it will equal 15
Your friend finds the volume of the rectangular prism. Is your friend correct? Explain your reasoning
Answer:
YES, my friend is correct.
Step-by-step explanation:
Formula for the volume of the rectangular prism = Length*Width*Height
Length = 7 mm
Width = 4 mm
Height = 2 mm
Plug in the values
Volume = 7*4*2
Volume = 28*2
= 56 mm³
Therefore, my friend is correct.
Jaclyn has these belts in her closet.
• 4 leather belts
• 3 plastic belts
• 10 canvas belts
• 6 rubber belts
• 1 denim belt
Jaclyn will randomly choose a belt, put it back, and choose another belt. What is the
probability that she will choose a plastic belt and then a canvas belt? (Lesson 10)
F
13
24
H
5
96
G
5
16
J
25
Answer: 13/24
Step-by-step explanation:
Number of leather belts = 4
Number of plastic belts = 3
Number of canvas belts = 10
Number of rubber belts = 6
Number of denim belt = 1
Total belts = 24
The probability of choosing a plastic belt and then a canvas belt will be:
= P(plastic) + P(canvas)
= 3/24 + 10/24
= 13/24
Please help me solve this problem
Answer:
OQ
Step-by-step explanation:
The lines would never hit each other going on to infinity making them parallel.
HELP
If MK = 10 m, find the length of MKL.
The length of arc MKL in the image given is: 19.02 m.
What is the Arc Length?Arc length = ∅/360 × 2πr, where r = 1/2(diameter of circle).
∅ = 180 + (90 - 52) = 218°
Radius (r) = 10/2 = 5 m
Arc length of MKL = ∅/360 × 2πr = 218/360 × 2π(5)
Arc length of MKL = 19.02 m
Therefore, the length of arc MKL in the image given is: 19.02 m.
Learn more about arc length on:
https://brainly.com/question/2005046
please help me thank you
Answer:
7.2 yds²
Step-by-step explanation:
6 × 1.2
7.2 yds²
Chicago has two airports (MDW and ORD). If you’re flying with Delta Airlines (DL) and your primary concern is to arrive on time, is it better to fly to MDW or to ORD?
Answer:
mdw
Step-by-step explanation:
mdw has a 89.5% chance of arriving on time while ord has a 83.9% chance
Write a exponential growth word problem and a exponential decay word problem
Answer:
Step-by-step explanation:
Growth:
You put 100 dollars into a fund which accumulates at a rate of 5% per annum. How much will be in the fund at the end of 10 years (to the nearest cent)?
answer: 100(1.05)¹⁰=162.89
Decay:
You buy a car for 10,000, and each year its value decreases by 5%. What is the car worth 10 years from now (to the nearest cent)?
answer: 10000(.95)¹⁰=5987.37
In a cookie jar there are 9 sugar cookies and 12 snickerdoodle cookies. The cookie are randomly mixed together in the jar. What is the probability of pulling two of the same types of cookies out of the cookie jar in a row without replacement?
Answer:
The probability of pulling two of the same types of cookies in a row without replacement is [tex]\frac{51}{105}[/tex].
Step-by-step explanation:
There are a total of 21 * 20 = 420 different outcomes (After you take one cookie out, you aren't replacing it, so there will be 20 cookies in the jar on the second grab). There are a total of 9 * 8 = 72 different combinations of two sugar cookies, and 12 * 11 = 132 different combinations of two snickerdoodle cookies, so the total probability of pulling two of the same types of cookies in a row without replacement is [tex]\frac{132+72}{420} = \frac{204}{420} = \frac{51}{105}[/tex].
Solve for d.
–821 = d + –701
Answer:
d = -120
Step-by-step explanation:
-821 + 701 = d
d = -120
A 10-foot ladder placed on level ground leans against the side of a house. The ladder reaches a point that is 9.2 feet up on the side of the house.
(a) What is the measure of the angle formed by the ladder and the level ground? Round your answer to the nearest degree. Show your work.
(b) The Occupational Safety and Health Administration (OSHA) sets standards for a variety of occupations to help prevent accidents and other safety hazards. OSHA’s standard for the angle formed by a ladder and level ground is . The same 10-foot long ladder is placed against the building according to OSHA’s safety standard.
What is the distance between the foot of the ladder and the foot of the building? Round your answer to the nearest tenth. Show your work.
Answer:
a. 67°
b. 3.9 ft
Step-by-step explanation:
a) the angle formed by the ladder and the level ground = sin`¹ 0.92 = 67°
b) the distance between the foot of the ladder and the foot of the building = 10× cos 67°
= 10 × 0.39 = 3.9 ft
$36,716×4.5%×6 years =
Answer:
3.12833905 × 10^11 U.S. dollars
Step-by-step explanation:
A right triangle has a leg of length 6 and a hypotenuse of length 21 yards. Find the length of the other leg (nearest tenth).
Answer:
20.1
Step-by-step explanation:
a^2+b^2=c^2
6^2+b^2=21^2
36+b^2=441
b^2=441-36
b^2=405
sqrt of b =20.12
Can someone help me really please
Answer:
Step-by-step explanation:
question
Answer:
the tank at the pet store
Step-by-step explanation:
5x4x2 = 40
35<40
Angle sec0= -13/12 and cot<0. what are the exact values of tan0 and sin0.
Answer:
tan 0= -2.4
sin 0 = 0.42
Step-by-step explanation:
sec 0 = -13/12 => cos 0 = -12/13
cot 0 < 0 => tan 0 < 0
so, the angle is on second quadrant
=> tan 0 = -12/5 = -2.4
=> sin 0 = 5/12 = 0.42
Answer:
Solution given;
Sec θ=-[tex]\frac{13}{12}[/tex]
cotθ< 0,
It lies in second quadrant.
where sin and cosec is positive.
Now
[tex] \frac{1}{cosθ}=-\frac{13}{12}[/tex]
cosθ=[tex]\frac{12}{13}[/tex]
[tex]\frac{b}{h}[/tex]=[tex]\frac{12}{13}[/tex]
b=12
h=13
By using Pythagoras law
p=[tex] \sqrt{13²-12²}=5 [/tex]
Now
exact values of tan θ=[tex]\frac{p}{b}[/tex]=[tex]\frac{5}{12}[/tex]
since it lies in II quadrant
tan θ=-[tex]\frac{5}{12}[/tex]
and
sinθ=[tex]\frac{p}{h}[/tex]=[tex]\frac{5}{13}[/tex]
since it lies in II quadrant
sin θ=[tex]\frac{5}{13}[/tex]
Which equation applies the associative property of multiplication?
A) 1/2⋅(5/8+3/6)=(1/2⋅5/8)+(1/2⋅3/6)
B) (−4/11−2/3)−3/4=−4/11−(2/3−3/4)
C) −12/5⋅(7/12⋅1/9)⋅8/5=(−12/5⋅7/12)⋅(1/9⋅8/5)
D) 4/9⋅(−3/8)⋅9/4=4/9⋅9/4⋅(−3/8)
Answer:
C) −12/5⋅(7/12⋅1/9)⋅8/5=(−12/5⋅7/12)⋅(1/9⋅8/5)
If the equation ax+b=cx+d has no solution what must be true about a, b, c, and d?
9514 1404 393
Answer:
a = cb ≠ dStep-by-step explanation:
For there to be no solution, the lines represented by the left-side and right-side expressions must be parallel. That is, the coefficients of x must be identical,
a = c
and the y-intercepts must be different:
b ≠ d.
PLSSSSS ASAP!!!! Determine the perimeter of the rectangle shown below.
Answer:
D. 42 units
Step-by-step explanation:
The perimeter of the rectangular shown on the coordinate plane = sum of all it's four sides
= 2(length + width)
Length = 11 units
Width = 10 units
Plug in the values
Perimeter = 2(11 + 10)
= 2(21)
= 42 units
The cone has a base diameter of 17 inches and a height of 6 inches. Find the volume of the cone using 3.14/pi. Round your answer to the nearest hundredth.
Answer:
453.73cm³
Step-by-step explanation:
V
=
π
r
2
h
3
3.14× 8.5²× 6/3
A blueprint for a house has a scale factor = 10. A wall in the blueprint is 8 in. What is the length of the actual wall?
6.67 in.
80 feet
960 feet
6.67 feet
Answer: 6.67 feet (check to see if you made a typo)
Step-by-step explanation:
if the scale factor is ten than we multiply 8 by 10
8 * 10 = 80
important to remember this is 80 INCHES not 80 FEET
to convert 80 inches into feet, we divide by 12 because there are 12 inches in a foot
80/12 = 6.67 feet
check to make sure that the first option is actually 6.67 inches because it would make more sense for it to be in feet
2
Missing Numbers (Source: Daily Routines to Jump-Start Math Class)
Insert any numbers between 1 and 9 only to make the equation have NO solution.
x+
=
D
X +
+
Virtual Nerd Video Support:
Solving Equations with No Solution
9514 1404 393
Answer:
2x +1 = 2x +3
Step-by-step explanation:
For there to be no solution, the coefficients of x must be the same, and the constants must be different. One possible choice of numbers is shown above.
2. Maya Nakai deposited $3,250 at 5.5% interest compounded daily for 120 days.
Answer:
$2005296.14
Step-by-step explanation:
(3250)(1+.055)^120=2005296.1362 rounded to the nearest penny =$2005296.14
At a coffee shop, the first 100 customers'
orders were as follows.
Small
Medium
Large
Hot
5
48
22
Cold
8
12
5
What is the probability that a customer ordered
a medium given that he or she ordered a hot
drink?
Rounded to the nearest percent, [? ]%
Answer:
48%
Step-by-step explanation:
48/100 = 48%
Edit: the awnser is 64% because 48/75 = 64%
The probability that a customer ordered a medium given that he or she ordered a hot drink is,
⇒ 48%
What is mean by Probability?
The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Given that;
At a coffee shop, the first 100 customers orders were as given.
Now,
Total customer = 100
Order hot median coffee = 48
Thus, The probability that a customer ordered a medium given that he or she ordered a hot drink is,
⇒ 48 / 100
⇒ 0.48
⇒ 48%
Thus, The probability that a customer ordered a medium given that he or she ordered a hot drink is,
⇒ 48%
Learn more about the probability visit:
https://brainly.com/question/13604758
#SPJ7
question that have not been answered
Answer: what do you mean
Step-by-step explanation:
Find an equation for the line with the given properties. Express your answer using either the general form or the slope-intercept form of the equation of a line. Parallel to the line ; containing the point (0,0)
Answer:
y = 7x
Step-by-step explanation:
Complete question:
Find an equation for the line with the given properties. Parallel to the line 7x - y = -7; containing the point (0,0)
The equation of a line in point-slope form is expressed as;
y - y0 = m(x-x0)
(x0, y0) = (0,0)
Given the equation of the line as 7x - y = -7;
Rewrite and get the slope
-y = -7x - 7
y = 7x+7
Get the slope
mx = 7x
m = 7
Substitute into the equation
y - 0 = 7(x - 0)
y = 7x
Hence the required equation is y = 7x
find value of x
3x (x+28)
Answer:
The value of x is 14.
Step-by-step explanation:
3x° = (x + 28)° [ vertically opposite angles
are equal]
3x = x + 28°
3x - x = 28°
2x = 28°
x = 28°/2
x = 14°
What value of xwill make x3/2=8 true?
Answer:
is it x to the power of 3 or 3x over 2=8?
Step-by-step explanation:
Answer:
x = ∛2^4 which is approx. 2.5
Step-by-step explanation:
x³/2 = 8/1
cross-multiply to get:
x³ = 16
x³ = 2^4
multiply each exponent by 2/3
x^(3·2/3) = 2^(4·2/3)
x² = 2^8/3
take square root of each side:
x = 2^(8/3 · 1/2)
x = 2^4/3
x = ∛2^4
HELP ME PLEASEEEEEEEEEEEEEEEEEEE
Answer:
the last one
Step-by-step explanation:
Answer:
The 2nd one (the one you chose) is right thats the answer
Step-by-step explanation:
Plz help me well mark brainliest if correct ?...???.
Answer:
90
Step-by-step explanation:
I don't know if this graph is 'field day' but if it is, then according to the graph, the temperature should be 90F
