Answer: 126 samples
Step-by-step explanation:
Given that :
Standard deviation (σ) = 0.7
Mean (m) = 7.3
Error (E) = 0.08
α = 80%
The sample size n can be obtained using the relation :
n = [(Zcrit * standard deviation) / Error]^2
The Zcritical at 80% = 1.282
Hence,
n = ((1.282 * 0.7) / 0.08)^2
n = (0.8974 / 0.08)^2
n = 11.2175^2
n = 125.83230625
n = 126
Identify the constant term in this expression 0.25 + 2x + 4z +0.75y
A) 2x B) 4x C 0.25 D) 0.75y
Answer:
0.25..........................................................
.
Solve for u
-5(-5u+5)-8u=5(u-5)-4
[tex] - 5( - 5u + 5) - 8u = 5(u - 5) - 4 [/tex]
[tex]25u - 25 - 8u = 5u - 25 - 4[/tex]
[tex]17u - 25 = 5u -29[/tex]
[tex]17u - 5u = - 29 + 25[/tex]
[tex]12u = - 4[/tex]
[tex]u = \frac{ - 4}{12} [/tex]
[tex]u = - \frac{1}{3} [/tex]
Tell whether each sentence about the factors of of 12 is True or False.
A. Allthefactorsof12are2,3,4,6,12.
B. 1 and 12 are a factor pair.
C. 120isafactorbecause10x12=120.
D. An array showing the factor pair of 3 and 4 would have 3 rows of 4 objects.
☐ True ☐ True ☐ True ☐ True
☐ False ☐ False ☐ False ☐ False
Answer:
A. True, 1 is always a factor too but It wasn't included there
B. True
C. True
D. False, it makes no sense.
Step-by-step explanation:
Have a nice day
What calculation would need to be done to solve the following equation:
2x = 26
Answer:
13
Step-by-step explanation:
Answer:
Divide both sides by 2
Step-by-step explanation:
you need to isolate "x" which has a coefficient of 2 so to get rid of that you divide by two
2x=26
x-13
Which values of a, b, and c correctly complete the division?
One-sixth divided by three-fifths = StartFraction 1 Over a EndFraction times StartFraction b Over c EndFraction
Answer:
answer is a
Step-by-step explanation:
thank me later:)
Plz i NEED HELP ABOUT TO FINISH THIS CLASS! PLZ
17. Does the following system have a unique solution? Why?
Answer:
last one
Step-by-step explanation:
Convert 4/16 to a decimal.
0.1
O
0.25
0.5
0.75
Answer:
0.25
How to Solve:
Take the denominator of 4/16 and find a number to make it 10, 100, any one followed by zeroes:
16 x 6.25 = 100
Do the same to the numerator:
4 x 6.25 = 25
Now, take 25 and take a decimal point two spaces to the right:
0.25
if f(x) = -4x^2 - 5x + 2, what is f(3) ?
Write 0.37 as a percent.
Answer:
37
Step-by-step explanation:
Answer:
37%
Step-by-step explanation:
0.37 x 100 = 37%
What are the domain and range of the function represented by the set of
ordered pairs?
K(-10, -6), (-4, -10), (3, 8), (9, -2)}
Answer:
A
Step-by-step explanation:
Domain is the first number in the ordered pairs and range is the second number. (I'm sorry if it's wrong)
Hope it helps!
The ratio of gifts wrapped in red to gifts wrapped in green is 3:5. If there are 32 total gifts, how many of each are wrapped in red? In green?
Answer:
Step-by-step explanation:
This is probably pretty late, but I'll do it anyway.
There are 8 parts all together.
3x + 5x = 32 Combine the terms on the left.
8x = 32 Divide by 8
8x = 32/8
x = 4
Therefore the red gifts are 3*4 = 12
The green gifts are 5*4 = 20
Total 32 Just as it should
Find the difference in SIMPLEST form:
3 1/5 - 1 1/10=
Answer:
2 1/10
Step-by-step explanation:
Answer:
2 1/10 or 2.1
Step-by-step explanation:
heheheheh hehehehehhehehehehehehheheh
Answer:
cscsc
Step-by-step explanation:
zcscc
Answer:
hehehehehehehehehehehehehehehehehehehehehehehehe
Step-by-step explanation:
lelelelelelelelelelelelelelelelelelelelelelelelelelelelelelelelelelele
Chicken Nuggets.
i give brainlilset nxgbkj,m.d/ed
q
what is 1 1/5 X 3 3/4 ?
Answer:
4.5
Step-by-step explanation:
Write the equation of the line that passes through the points
(−7,−3)and (−2,−1). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
The equation that passes through (−7,−3)and (−2,−1) is y=2/5x-1/5
Step-by-step explanation:
m=y²-y¹/x²-x¹
m=(-1)-(-3)/(-2)-(-7)
m=2/5
y-y=m(x-x¹)
y-(-1)=2/5(x-(-2)
y+1=2/5x+4/5
-1 -1
y=2/5x-1/5
Help plz the problem is in the photo
Answer:
25 = 50%
37.50 = 75%
75 = 150%
Step-by-step explanation:
We know that 50 is 100% so we can work with that.
We also know the percentages increase by 25% for every $12.5.
12.50 + 12.50 = 25
25 + 12.50 = 37.50
62.50 + 12.50 = 75
25 = 50%
37.50 = 75%
75 = 150%
I hope this helps and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
1. Find x
2 find ab
3.Find bc
AC = 46
AB + BC = AC
(4x + 7) + (3x + 4) = 46
4x + 7 + 3x + 4 = 46
(4x + 3x) + (7 + 4) = 46
7x + 11 = 46
7x = 46 - 11
7x = 35
x = 35/7
x = 5
AB = 4x + 7
AB = 4(5) + 7
AB = 20 + 7
AB = 27
BC = 3x + 4
BC = 3(5) + 4
BC = 15 + 4
BC = 19
Help
Fjdjdjdjdjdjdjdjdjjd
Answer:
D. -2/5
Step-by-step explanation:
HELP ME PLEASEEEE :)
Answer:
I believe it to be C
Step-by-step explanation:
Eagle Sports Supply had net income of $2,000 on sales this year. The firm paid a dividend of $500 and retained the rest earnings for financing for the next year. Total assets were $100,000, of which $40,000 was financed by debt. The rest were financed by equity.
(a) What is the firm’s internal growth rate?
(b) What is the firm’s sustainable growth rate?
(c) If the firm grows at its sustainable growth rate, how much new debt will be issued in the next year?
Answer:
089908
Step-by-step explanation:
i dont know lol but wana see
Len bought 12.3 ounces of cashews and 15.2 ounces of almonds.
He calculates that if he and four friends share all the nuts equally, each person will receive 5.1 ounces of nuts.
Is his answer reasonable? Use 3-5 complete sentences to explain why or why not.
Answer:A manufacturer produces nuts and bolts. It takes 1 hour of work on machine A and 3 hours on machine B to produce a package of nuts. It takes 3 hours on machine A and 1 hour on machine B to produce a package of bolts. He earns a profit of Rsl7.50
Step-by-step explanation:
Answer:
Lens answer is not reasonable because if you do the math she will be able to share 6.875 ounces. I know this because you can add 12.3 and 15.2 to get 27.5. If you divide 27.5 by 4 you get 6.875.
Step-by-step explanation:
HELPPP ASAPP PLEASEE
Answer:
1 tube of paint = $6
Step-by-step explanation:
check the graph to verify the answer
Georgia bought pears for $6.14. The price of pears is $1.10 per pound. How many pound of pears did she buy? (Round your answer to the nearest hundreths place. )
Answer:
5.58
Step-by-step explanation:
Help plz! ^-^ will give brainliest!
Fill in the blanks to solve the equation.
2 (2 – 14) = } (x – 12)
= {x – 4
N
-7 = -4
2=
answer: -24
explanation : i was able to solve it but i for got what numbers i used to solve it with
Micheal has a total of 15 bills that are either 1$ bills or 5$ bills. If the total amount of money he has is 47$, how may 5$ bills does he have?
Answer:
Micheal has 8 $5 bills and 7 $1 bills.
Answer:
micheal has 8 5$ bills and 7 1$ bills
Step-by-step explanation:
8 x 5 = 40
7 x 1 = 7
40 + 7 = 47
8 + 7 = 15
What is the value of each function composition?
Answer:
(h o k) (3) = 3
(h o k) (-4b) = -4b
Step-by-step explanation:
the invesre function gives you back the value of argument of function
eric mows 1/5 acre in 1/4 hour. how many acre does paige mow per hour
Answer:
2/3
Step-by-step explanation:
does anyone know how to do this geometry problem?
========================================================
Explanation:
Let's start with the exterior angle 116 degrees.
The interior angle adjacent to this will add to 116 and we'll get 180
(interior angle) + (exterior angle) = 180
(angle VWX) + (angle VWY) = 180
(angle VWX) + (116) = 180
angle VWX = 180 - 116
angle VWX = 64
-----------------
Let's focus solely on the interior angles of triangle VWX
We found angle W to be 64. Angle X is given to be 44. Angle V is unknown, but we can solve for it like such
V+W+X = 180
V+64+44 = 180
V+108 = 180
V = 180-108
V = 72
--------------
The three interior angles of triangle VWX are:
V = 72
W = 64
X = 44
This will determine the order of the side lengths from smallest to largest. Recall that the smallest side of a triangle is always opposite the smallest angle. Similarly, the largest side is always opposite the largest angle.
Based on those V,W,X angle values, we know that
WX = longest side (since the angle opposite V = 72 is largest)
VW = shortest side (since X = 44 is the smallest angle and it is opposite VW)
The order of the sides is therefore:
VW < VX < WX
We don't involve point Y because it's not part of the triangle.
Check out the diagram below for a visual summary.
