A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 16 years with a standard deviation of 5 years. If the claim is true, in a sample of 32 wall clocks, what is the probability that the mean clock life would be greater than 15.6 years
Answer:
Step-by-step explanation:
A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 16 years with a standard deviation of 5 years. If the claim is true, in a sample of 32 wall clocks, what is the probability that the mean clock life would be greater than 15.6 years
5
What is the missing value in the following arithmetic sequence?
4
3
9.2
2
1
5.6
n
3.8
2
an
7.1
7.2
74
7.5
Answer:
C-7.4
Step-by-step explanation:
just took the test EDG2020
The nth term of an arithmetic sequence is a +(n-1)d. The missing term of the arithmetic sequence is 7.4
How to calculate the nth term of an arithmetic sequence?The nth term of an arithmetic sequence is expressed according to the formula as shown:
Tn = a + (n -1)d
where:
a is the first term = 2
d is the common difference = 3.8 -2 = 1.8
Required
Fourth term (n = 4)
Substitute
T4 = 2 + (4 -1)(1.8)
T4 = 2+3(1.8)
T4 = 7.4
Hence the missing term of the arithmetic sequence is 7.4
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Write the equation 7x - 4y = -12 in slope-intercept form
PLEASE I NEED HELP RIGHT NOW! THANK YOU!
For each equation, tell whether it is always, sometimes, or never true. Explain your reasoning in words.
Answer:
For d: x=2
Step-by-step explanation:
Lets +1 on both sides so 9+1=10. Now the equation is 5x=10
Divide 10÷5=2
During basketball practice, Mai attended 40 free trows and was successfully on 70% of them. How many successfully trows did she make?
Answer:
28
Step-by-step explanation:
40×70% or 40×.7= 28 so 28 is 70% of 40
Can someone explain thoroughly how I am meant to solve this?
Answer:
I got x<equal to -11 or x>equal to4
Step-by-step explanation:
x^2+15x+44=0
(x+4)(x+11)=0(Factor left side of equation)
x+4=0 or x+11=0(Set factors equal to 0)
x=−4 or x=−11
Check intervals in between critical points. (Test values in the intervals to see if they work.)
x<−11(Works in original inequality)
−11<x<−4(Doesn't work in original inequality)
x>−4(Works in original inequality)
Answer:
x<−11 or x>−4
A glacier in Alaska moves about 29.9 meters a day. How much farther will it move in 1,000 days than in 100 days?|
Answer:
(1000x29.9)-(100x29.9)=29900-2990=26910
26910
Step-by-step explanation:
SOMEONE, PLEASE HELP I WILL GIVE THA BRAINLIST
The managers at a clothing store determine its prices by using a markup of 8%. If the managers purchase a batch of black shirts for $19 each, what price will they charge their customers?
Answer:
$20.52
Step-by-step explanation:
19 × 8% = 1.52
1.52 + 19 = $20.52
What is the vertex of the parabola y=2(x-3)^2+5 NEED ANSWER NOWWW
Answer:
(3,5)
Step-by-step explanation:
Find the x-intercept of the following linear function: 3x - 2y- 16
QUICK
I gotchu
To solve for x-intercepts, y must be 0.
3x - 2(0) - 16 = 0
3x - 16 = 0
3x = 16
x = 16/3
X intercepts are ([tex]\frac{16}{3}[/tex],0)
Answer:
The answer is 5.33333333 or 5 1/3
Can someone help me please
Answer:
64 cm^2
Step-by-step explanation:
SA = s^2 + 2sl
= 4^2 + 2(4)(6)
= 64 cm^2
27.1018494699 round to nearest hundred-thousandth
Answer:
27.101
Step-by-step explanation:
Given a normal distribution with a mean of 120 and a standard deviation of 12, what percentage of values is within the interval 96 to 144
Answer:
0.9545
Step-by-step explanation:
Given that :
Mean (m) = 120
Standard deviation (s) = 12
what percentage of values is within the interval 96 to 144
P(96 < x < 144)
P(x < 96)
obtain the standardized score (Z) :
Z = (x - m) / s
Z = (96 - 120) / 12 = - 2
p(Z < - 2) = 0.02275 ( Z probability calculator)
P(x < 144)
obtain the standardized score (Z) :
Z = (x - m) / s
Z = (144 - 120) / 12 = 2
p(Z < - 2) = 0.97725 ( Z probability calculator)
p(Z < - 2) - p(Z < 2) = 0.97725 - 0.02275 = 0.9545
Simplify the following expression: -4(-4d - 5)
Answer:
4⋅(4d+5)
Step-by-step explanation:
Lin is paid $90 for 5 hours of work. She used the table to calculate how much she would be paid at this rate for 8 hours of work 1. What is the meaning of the 18 that appears in the table?.
Answer:
It was used as the multiplier because the 5 represents the hours she's worked. If she uses the 1/5 graph she will find the unit rate of each time she gets paid an hour.
Pls answer asp!!!! Pls
Answer:
C I think
Step-by-step explanation:
hope it's correct
Answer:
im 92.2% sure its A because 70 is what he had while 27 is after taking the 18 but i might be wrong so your better off with someone elses answer
Step-by-step explanation:
The sum of Katelynn’s parents' ages is 80. Katelynn’s father is 4 years older than her
mother. Write and solve an equation to determine both her parents’ ages.
Answer:
Step-by-step explanation:
M=Mum
D=Dad
K=Katelynn
M+D=80
The rest
5 - 3 1/4
This is Fractions
The question is in the image below, please and thank you!
which expression is equivalent to -1.3 - (1.9)?
Answer: 0.6
Step-by-step explanation:
Please help! 35.1 x 8.4 = ??
Answer:
294.84
should be correct, I used a calculator.
You have $500, sale price is $435. How much change will you get
Answer:
go to sleep its 11:23 also u will get
$65 dollars pls mark me brainleist
Step-by-step explanation:
greatest to least 4/10, 0.50, 1/4, 0.06
Answer:
0.50, 4/10, 1/4, 0.06
Step-by-step explanation:
1/4 = 0.25
4/10 = 0.40
Answer:
OoP NVmM SoRrY- XD
Step-by-step explanation:
^^ Hopefully this works, I'm rooting for you!
A wise man once said, “400 reduced by 3 times my age is 163.” What is his age? ( I need the step by step equation to solve this)
Answer: the wise man is 79
Step-by-step explanation:
400 - 3x = 163
400–163 =3x
237 = 3x or 3x = 237 or x = 79…
Solve the radical equation.
PLEASE HELPPPP
what would be the slope?
An objects _________
Using the graphing function on your calculator, find the solution to the system
of equations shown below.
2y- 4x= 6
y- 2x=7
A. No solution
B. More than 1 solution
C. x= 4, y=-2
D. X= -1, y= 1
what's the answer please
TS is an angle bisector. If m∠RTS=x+10 and m∠UTS=2x+5, find m∠RTU.
answer choices below
30°30 degrees
15°15 degrees
80°80 degrees
5°
Answer:
m∠RTS= 15°, m∠UTS= 15°, m∠RTU= 30°
Step-by-step explanation:
Since TS bisects RTS and UTS, that means the two angles are equal to each other. So let's find x first.
x+10=2x+5, subtract x to both sides
10=x+5, subtract 5 to both sides
x=5
Since RTU is basically RTS plus UTS, let's add the two angles together
x+10+2x+5, combine like terms
3x+15
Then we can plug in 5 for x
3(5)+15
15+15
=30
So, RTU is 30 degrees
Answer:
kjndnsadnsdnasnldnkasbdkbaskbjdbLol i dont caewnsnasdHBsadHKUsadkhsdkkbhaSKHChASKUCDKJGCHakbsDKskbhaKHDHU
Step-by-step explanation: