Answer:
We can conclude that the result is significant and production differ in cost variance.
Step-by-step explanation:
Given :
n1 = 16
n2 = 16
s1² = 5.7
s2² = 2.8
α = 0.10
H0 : σ1² = σ2²
H1 : σ1² ≠ σ2²
The test statistic :
Ftest = s1² / s2² =
Ftest = 5.7 / 2.8
Ftest = 2.036
Using the Pvalue from Fratio calculator :
df numerator = 16 - 1 = 15
df denominator = 16 - 1 = 15
Pvalue(2.036, 15, 15) = 0.0898
Pvalue = 0.0898
Since the Pvalue is < α ; We can conclude that the result is significant and production differ in cost variance.
2(x + 4)2 = 20 solve by square roots
Answer:
x = − 4 ± √ 10,
Step-by-step explanation:
2(x + 4)² = 20
=> 2(x + 4) (x + 4) = 20
=> 2x + 8 (x + 4) = 20
=> 2x² + 8x + 8x + 32 = 20
=> 2x² + 16x + 32 = 20
=> 2x² + 16x + 12 = 0
=> Now solve using the quadratic formula:
x = − 4 ± √ 10,
Radical form: − 4 ± √ 10,
Decimal form: -0.84, -7.16
Hope this helps!
I really need help with this.
Answer:
135
Step-by-step explanation:
All the angles that would correspond with the angle measure 8 (135°) would be m<5, m<2, m<1.
hope this helped!
Function Composition:
Let the functions [tex]f(x)= 2x^{2} +1[/tex] and [tex]g(x)= 3x - 1[/tex] , determine:
Answer:
Given
f(x) = 2x² + 1g(x) = 3x - 1#1
f · g(5) = f(g(5)) = f(3*5 - 1) = f(14) = 2(14²) + 1 = 393#2
g · f(-3) = g(f(-3)) = g(2(-3)² + 1) = g(19) = 3(19) - 1 =56#3
g · f(x) = g(f(x)) = g( 2x² + 1) = 3(2x² + 1) - 1 = 6x² + 3 - 1 = 6x² + 2#4
f · g(-x) = f(g(-x)) = f(3(-x) - 1) =f(-3x - 1) = 2(-3x - 1)² + 1 = 2(9x² + 6x + 1) + 1 = 18x² + 12x + 2 + 1 = 18x² + 12x + 3Is anyone good at geometry if so can someone help me please ?
NO LINKS PLEASE
A. 13.3
B. 11.4
C. 11.3
D. 11.7
Answer: 11.7
Step-by-step explanation: b=2(A/h)=2(49.1/8.4)=11.69
Select all the equations where x = 5 is a solution.
A. X - 4 = 9
B. 1 + x = 6
C. 2 = 7 - x
D. 10x = 5
F. x2 = 5
Answer:
b and c
Step-by-step explanation:
x=5 so its basically 1+5=6 and 7-5=2
9f^2–10– 1+2f^2+ – 7f^2
(NO LINKS)
(LINKS WILL BE REPORTED)
Answer:
4f² - 11
Step-by-step explanation:
first group the like terms
9f²-2f²-7f² is all like terms
-10-1 are like terms
9f²-2f²-7f² -10-1
4f² - 11
The Pythagorean Identity states that (sin x)^2 + (cos x)^2 = 1 Given cos 0 = 7/4 find sin 0. Simplify the fraction.
Answer:
sin∅=3/4
Step-by-step explanation:
sin²x+cos²x=1
sin²x+(√7/4)²=1
sin²x+7/16=1
sin²x=9/16
sinx=3/4
Therefore, sin∅=3/4
Tobin tried to define a translation.
Point AAA maps to point A'A
′
A, prime.
Every point PPP maps to point P'P
′
P, prime such that \overline{PP'}
PP
′
start overline, P, P, prime, end overline has the same length as \overline{AA'}
AA
′
start overline, A, A, prime, end overline.
What mistake did Tobin make in her definition of a translation?
Answer:
C :)
Step-by-step explanation:
Answer:
c is correct
Step-by-step explanation:
Which phrase could be best represented by the algebraic expression
Answer:
i think the answer is c i hope it helps
Let y = 0.25x + 4 represent the cost of going to the movie from 1985 to 1995. Let
x represent the number of years since 1985.
a. Predict the cost of going to a movie in 1997.
b. Did you use linear interpolation or linear extrapolation?
c. Predict the cost of going to a movie in 1991.
d. Did you use linear interpolation or linear extrapolation?
c. Predict the cost of going to a movie in 1991.
OR
a. Predict the cost of going to a movie in 1997.
Step-by-step explanation:
i thing that is the answer and choose the correct because I'm not sure where the correct answer...
FOLLOW MEDomain and range
What is the Domain and Range of the Relation
y = -5
Answer:
D: {all reals}
R: {-5}
Step-by-step explanation:
Please help with algebra 2 I took a pic , I have 6 questions n need proof of work
Find an explicit rule for the nth term of the sequence.
9514 1404 393
Answer:
(a) an = -4·2^(n-1)
Step-by-step explanation:
The form for the general term is ...
an = a1·r^(n-1) . . . . . a1 is the first term; r is the common ratio
For a1=-4 and r=-8/-4 = 2, the rule will be ...
an = -4·2^(n-1)
Answer:
the answer is a
Step-by-step explanation:
:)))))))))
How many cubes with side lengths of 1/4 cm does it take to fill the prism?
Step-by-step explanation:
All you do is add them all up but tbh that picture could use some work and maybe when you fix it ill help you then .So the square unit of this picture is 6
I WILL GIVE BRAINLEST AND A LOAD OF POINTS
When you roll two number cubes, what are the odds in simplest form against getting two numbers greater than 4?
Answer:
Either 4:1, or 8:1
Step-by-step explanation:
I'll choose 8:1 for now, I'll update this answer if it's correct or not.
500 gallons of water is being drained at a rate of 4 gallons per hour, If y is the number os gallons of water in the tank after being drained for x hours, which equation represents the situation?
Answer:
4x + y = 500
Step-by-step explanation:
Given:
Volume of water = 500 gallons
Water drained rate = 4 gallon per hour
Find:
Equation
Computation:
Total volume of water left in tank = y
Number of hour water drained = x
So,
Volume of water - Total volume of water left in tank = Water drained rate[Number of hour water drained]
500 - y = 4x
So,
Water drained;
4x + y = 500
Answer:
The correct equation would be y = 4x - 500.Step-by-step explanation:
y = The number of gallons in the tank after being drained for x hours
x = The number of hours that the tank is being drained
500 = The number of gallons in the tank
4 gallons = the number of gallons that are being drained per hour
y = 4x - 500
Correct answer: 0 = 4 (125) - 500
500 / 4 = 125
Elena is knitting a design on a sweater. The first row has 10 stitches and each
additional row has 7 stitches more than the row before it. How many stitches are in
the 12th row?
A.74
B.70
C.87
S.86
Answer: 87
Step-by-step explanation:
This will be solved using an arithmetic progression. The formula will be:
= a + (n - 1)d
where,
a = first term = 10
d = common difference = 7
n = 12
Therefore, 12 term will be:
= a + (n - 1)d
= 10 + (12 - 1) × 7
= 10 + (11 × 7)
= 10 + 77
= 87
Therefore, the number of stitches that are in the 12th row will be 87.
what is the area of a peice of land 600m by 450m
Answer:
hope it helps my dear friend.
Step-by-step explanation:
Answer-
We have,
l=600 m and b=450 m
We know that the area of rectangle
=l×b
Therefore,
=600×450
=270000 m2
Hence, this is the answer.
Answer:
=270000 m2 is your correct answer
Identify any x intersepts and y intersepts
Factorize
x
[tex]x ^{3} - 3x - 2 [/tex]
[tex]x ^{3} - 3x - 2 [/tex]
x³-2x²+2x²-3x-2
x²(x-2)+2x²-4x+1x-2
x²(x-2)+2x(x-2)+1(x-2)
(x-2)(x²+2x+1)
(x-2)(x+1)(x+1)is a required answer.
HELP ASAP!!
Combine like terms:
-7x + 8 - 4x - 9
answers:
1. -11x - 1
2. -3x - 1
3. -11x + 17
4. -12
Answer:
The answer for -7x + 8 - 4x - 9 is 1. -11x-1
Help pls!!!!!!!!!!!!!
Answer:13
Step-by-step explanation: this is the awnser.
1/3(2x-1)<1/5(x+3)-1
Answer:
lLove
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=0.6666667
Step-by-step explanation:
hope it's help yan po Yong sagot
I need the answer. Please help
Answer:
C = 25
a = 10.72
b = 11.83
Step-by-step explanation:
The easiest thing to solve for right now is C- all angles in a triangle add up to 180 degrees. So we can subtract 65 and 90 from 180 to get the measure of angle C, 25 degrees.
Then we can use trigonometric functions: SOH CAH TOA
sinC = opposite / hypotenuse
sin25 = 5 /hyp
5/sin25 = hyp
hyp (aka b) = 11.83
cosC = adjacent / hypotenus
cos25 = a/11.83
11.83*cos25 = a
a = 10.72
C = 25
a = 10.72
b = 11.83
Ashley was given the following problem and she drew a bar diagram to help her solve the problem.
Julie is 5 years younger than her sister, Molly. The sum of their ages is 37. How old is each sister?
Identify the error that Ashley made in creating her diagram and explain to her how to fix it.
Answer:
Julie is 16 years old and Molly is 21 years old.
Step-by-step explanation:
Given that Julie is 5 years younger than her sister, Molly, and the sum of their ages is 37, to determine how old is each sister the following calculation must be performed:
(37 - 5) / 2 = X
32/2 = X
16 = X
(16 + 5) + 16 = X
21 + 16 = X
37 = X
Therefore, Julie is 16 years old and Molly is 21 years old.
b. You have a recipe that indicates to use 7
parts of sugar for every 4 parts of milk. You
use 28 cups of sugar. How much milk do you
need?
You need
cups of milk.
Answer:
16
Step-by-step explanation:
Mau Problem of the Month
Jose went to the mall with his friends to spend the
money that he had received for his birthday. When he
got home he still had $24 remaining. He had spent 3/5
of his birthday money at the mall on video games and
food. How much money did he spend? How much
money had he received for his birthday?
Answer:
a) $14.4
b) $38.4
Step-by-step explanation:
a) 3/5 × 24 = 14.4
b) 14.4 + 24 = 38.4
pls solve fast!
1-|3p+1|=-3
What does £ mean in math? Not in currency.
it means mean in statistics. I'm not sure tho..
Lines A and B are parallel A 1,2,50°,4
B 5, 6 ,78 ,m 2 = [?]°
Answer:
10
Step-by-step explanation:
12
