Answer:
Calculated value Z = 2.1097 > 1.96 at 0.05 level of significance
There is a difference between the means
Step-by-step explanation:
Step(i):-
Given that mean of the Population = 5.9pounds/square inch
Given mean of the sample = 6.0pounds/square inch
Given that variance of the Population = 0.36
The standard deviation of the Population = √0.36 =0.6
critical value (Z₀.₀₅)= 1.96
Step(ii):-
Null Hypothesis:H₀: x⁻ = μ
Alternative Hypothesis:H₁: x⁻ ≠ μ
Test statistic
[tex]Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }[/tex]
[tex]Z = \frac{6.0-5.9 }{\frac{0.6}{\sqrt{160} } }[/tex]
Z = 2.1097
Final answer:-
Calculated value Z = 2.1097 > 1.96 at 0.05 level of significance
The null hypothesis is rejected
There is a difference between the means
which pair of angles are supplementary?
Answer: H
Step-by-step explanation:
Supplementary angles just mean they add up to 180 degrees. 180 degrees means that when the two angles are put together one of each of their sides will form a straight line.
Please answer this correctly without making mistakes
Answer:
1 mi 683 yd
Step-by-step explanation:
.............
Find the circumfrance and the area of a circle with a 5 ft radius. Use the value 3.14
Answer:
Circumference is 2piR =31.4
Area is pir^2=78.5
Step-by-step explanation:
what is the equal value of 2⁷
Answer:
128
Step-by-step explanation:
2 to the power of 7 means you multiply 2 seven times over
2*2*2*2*2*2*2 = 4*2*2*2*2*2= 8*2*2*2*2= 16*2*2*2= 32*2*2= 64*2 = 128
plz give brainliest
Answer? I don’t know may I please have help
Answer:
1. y=kx
2. y=60
Step-by-step explanation:
y is directly proportional to x
y=kx
Find Constant K, when y=30 & x=6
Make K the subject of the formula first
K=y/x
K=30/6
k=5
When k is 5, x is 12, find y
y=kx
y=5×12
y=60
16. A shoe company invests $300,000 in equipment to produce athletic foot wear. Each pair of shoes costs $5
to produce and is sold for $55. How many pairs of shoes must be sold before the business breaks even?
Answer:
6000 pairs of shoes
Step-by-step explanation:
Well what you have to do is subtract the 5 from the 55 (because that's the profit) and then you get 50. Then divide 300,000 by 50 and you get 6000
Step by step explanation:
12b - b =77
Answer:
7
Step-by-step explanation:
12b -b = 11b
11b = 77
Divide both sides by 11
b = 7
Plz help me with this problem! (I would put this for 25-50 points but then ppl don't give real answers they just say random things.) What is N? Use the seesaw principle.
Answer:
N sould = 10
Step-by-step explanation:
Answer:
5 feet
Step-by-step explanation:
38xN=10(4)+15(10)
38N=40+150
38N=190
N=5
What is the sun of the 14th square number 9th square number
Answer:
1245267356ryr7tt4655443544e
Routine and non routine problems involving integers
six ALS learners share an apartment.They had a balance bill of 1,800 for the month of June. How much do they each to contribute?
Answer:
each one contribute 300
Step-by-step explanation:
The computation of the each one contribution is given below:
Given that
There are six ALS learner who shares the apartment
The total bill is 1,800
So based on the above information, the each one contribution is
= Total bill ÷ number of learners
= 1,800 ÷ 6
= 300
Hence, each one contribute 300
If f(x)= x^3+x^2-x what is f(4)?
Answer:
that would be 76
Step-by-step explanation:
Answer:
f(4) = 76
Step-by-step explanation:
To evaluate f(4), substitute x = 4 into f(x), that is
f(4) = 4³ + 4² - 4 = 64 + 16 - 4 = 80 - 4 = 76
a rectangular prism has a volume of 104 cubic inches the prism has a height of 2 inches and a width of 4 inches what is the length of the prism
Answer:
13inches
Step-by-step explanation:
formula for volume of rectangular prism is, V= whl
where, w is width
h is height
and l is length.
hence, substituting the values,
104=4×2× L
104=8×L
on solving,
L= 13
hence, length is 13 inches
What is the domain of the function y=2./X-6?
O 0x
O 3x<0
O 6x<0
Answer:
because this is a positive root function, domain is positive so
0<=x<infinity
Step-by-step explanation:
If p(x) = 2x - 5 and r(x) = 3x + 4, calculate (pr)(x).
A
6x2 - 7x - 20
B
6x2 + 7x - 20
5x - 1
D
6x2 - 20
Answer:
6x + 3
Step-by-step explanation:
Given p(x) = 2x - 5 and r(x) = 3x + 4,
p(r(x)) = p(3x+4)
p(3x+4) = 2(3x+4) - 5
p(3x+4) = 6x + 8 - 5
p(3x+4) = 6x +3
Hence the composite function (pr)(x) is 6x + 3
i need help to
measure
Find the 10th term of the geometric sequence 10, -50, 250, ...
Answer:
-19,531,250
Step-by-step explanation:
multiply the last term by -5
Answer:
it is -19531250
Step-by-step explanation:
the person above was right i just wanna remind anyone using de1ta ma1h that you can't put commas between the numbers or it'll be wrong which doesn't make any sense but it's part of the program ig
SOLVE FOR X AND Y, WILL GIVE BRAINLIEST
find this answer you'll get 100 points 82÷4×(2+3)−10000/0=
Answer:
-9897.5
Step-by-step explanation:
Paul leaves from Johannesburg to Limpopo and has to travel 300km to get to his destination: If he travels at a constant speed of 75 km per hour, how many hours will it take him to get there?
And if he only has 90 minutes to get to his destination, what speed must he travel to get there on time?
Select the correct answer.
Which expression simplifies to
M-2/m-1
Hence, option (C) is the correct answer.
What is an equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here the given expression is
[tex]\frac{m-2}{m-1}[/tex]
So, here we use equation third
i.e.,
[tex]\frac{m^{2}-m-2}{m^{2}-1}\\\frac{m(m-1)-2}{m^{2}-1}\\\\\frac{m-2}{m-1}\\\\[/tex]
Hence, option (C) is the correct answer.
To know more about the equation
https://brainly.com/question/12788590
#SPJ2
if three distinct numbers have a sum of 10 and a product of 20, what is their median
Answer:
gfdsgfds
Step-by-step explanation:
fdgdsf
a system of two linear equations to solve a real-world problem.
Valerie watched 6 times as many hours of television over the weekend as Diana. Together
they watched a total of 14 hours of television. Write a system of equations that represents the
situation.
Answer:
x = 6y
x + y = 14
where x & y are the number of hours Valerie and Diana watched television respectively.
Step-by-step explanation:
:)
Julie buys 8.2 pounds of pears for $16.
About how much do they cost per pound?
Answer:
0.51 per pound
Step-by-step explanation:
8.2/16 = 0.5125
about 0.51
The Kid Laroi
The temperature in Fargo was (-28) degrees on Monday afternoon. By the evening it dropped an additional 15 degrees. What was the temperature in the evening.
Please do this quick this is due in 5 minutes btw please show step by step and this is integers word problem
Answer:
the temperature in the evening is -43 degrees
Step-by-step explanation:
brainliest
Step by step explanation: -28-15
When adding negative with positive it will always be negative so for this question, subtract -28 with 15 which would be -48. So -48 would be the temperature in the evening.
Final Result: -43
which is not a like term in the expression 7x +3 - 4 x-x
Answer:
3 is not a like term because it isn't an x term, it doesn't have an x variable while the other terms do.
Which sets of ratios are a proportion? (Choose all that apply) *
3/11 and 17/6
12/7 and 36/21
60/55 and 7/25
7/6 and 52/48
4/10 and 8/20
Answer:
Sets of Ratios that are Proportion3/11 and 17/6
12/7 and 36/2160/55 and 7/25
7/6 and 52/48
4/10 and 8/20Solution:> 12/7 and 36/21
[tex] \frac{12}{7} = \frac{36}{21} \\ 12(21) = 36(7) \\ 252 = 252[/tex]
> 4/10 and 8/20
[tex] \frac{4}{10} = \frac{8}{20} \\ 4(20) = 8(10) \\ 80 = 80[/tex]
Compounding - Solve for Time
Jan 21, 2:12:46 PM
Joseph invested $89,000 in an account paying an interest rate of 6.6% compounded
quarterly. Assuming no deposits or withdrawals are made, how long would it take, to
the nearest tenth of a year, for the value of the account to reach $237,600?
Answer:
t=15
Step-by-step explanation:
Why does 3x4 and 3x4 the same answer?
Answer:
bc the are both the same numbers. So the answer is 12. :>
Step-by-step explanation:
Answer:
because thay are the same problom
Step-by-step explanation:
3x4 is 12
65-38 solve in vertical form
Chase was trying to solve for x and y. He knows that the value of x is 3 times the value of y and that half of x plus twice y is equivalent to -14
Answer:
the value of x is -12 and the value of y is -4
Step-by-step explanation:
Given;
x = 3y ----- (1)
[tex]\frac{x}{2} + 2y = -14[/tex] ----(2)
Substitute the value of x into equation (2)
[tex]\frac{3y}{2} + 2y = -14\\\\multiply \ through \ by \ 2\\\\3y + 4y = -28\\\\7y = -28\\\\divide \ through \ by \ 7 \\\\y = -4\\\\solve \ for \ x\\\\x = 3y\\\\x = 3(-4)\\\\x = -12[/tex]
Thus, the value of x is -12 and the value of y is -4
Answer:
the answer should be A
Step-by-step explanation:
