The 90% confidence interval is between R96.94 and R105.06
The confidence (C) = 90% = 0.9, Mean (μ) = 101, standard deviation (σ) = 39, sample size (n) = 250
α = 1 - C = 1 - 0.9 = 0.1
α/2 = 0.1 / 2 = 0.05
The z score of α/2 corresponds with the z score of 0.45 (0.5 - 0.05) which is equal to 1.645
The margin of error (E) is given by:
[tex]E=Z_\frac{\alpha }{2} *\frac{\sigma}{\sqrt{n} } \\\\E=1.645 *\frac{39}{\sqrt{250} } =4.06[/tex]
The confidence interval = μ ± E = 101 ± 4.06 = (96.94, 105.06)
Therefore the 90% confidence interval is between R96.94 and R105.06
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24.. A toy company makes 40 plastic harmonicas in 30 minutes. At this
rate how long will it take to make 200 harmonicas?
Proportions
Answer:
It will take 2 and a half hours
Step-by-step explanation:
Well 40 can go into 200 5 times so you would do 5 times 30 minutes which would be 150 minutes and then you would divide it by 60 to simplify which would be 2 hours and 30 minutes. So it will take 2 and a half hours to make 200 harmonicas.
200/40 = 5
5 * 30 = 150
150/60 = 2 hours and 30 minutes
Answer:
6.7 minutes
Step-by-step explanation:
From what we know, we will have to divide. The things we are dividing are the 30 minutes it took to make the 40 plastic harmonicas and the total we need of harmonicas, which is 200. By dividing 200 by 30, we get 6.666666666666667. But, we can't have that long answer, so we need to round up. Which is when we get our quotient of 6.7 minutes. If I'm wrong, please, don't be afraid to correct me. And have a good day stranger!
Edit: This answer is wrong. I was corrected and now I know what the answer is. Please do avoid this answer. But have a good day to anyone sees this!
Solve for x and y simultaneously in
Answer:
forgot to add a pic
Step-by-step explanation:
24 to the second power divided by 47
Answer:
[tex]\frac{576}{47}[/tex]
Step-by-step explanation:
[tex]24^{2} = 576[/tex], since 47 is a prime number and 576 isn't divisible by it, [tex]\frac{576}{47}[/tex] would be the best answer.
Which ordered pair is a solution for 3x + 4y < 12?
Answer:
D, (1,2)
Step-by-step explanation:
It all comes down to substitution. In this case the coefficient of x is 3 and the coefficient of y is 4. The format of these coordinates being (x,y).
1. Plug in your x value (1 in this circumstance) and solve:
3(1) + 4y < 12
3 + 4y < 12
2. Plug in your y value (2 in this circumstance) and solve:
3 + 4(2) < 12
3 + 8 < 12
3. Solve
3 + 8 = 11
11 < 12
QUICK
ADD THE EXRESSIONS
(10x - 4) + ( -7 + x) = (10x +) + ( -4 + )
Answer:
(10x - 4) + ( -7 + x)
10x-4-7+x=10x-11 is your answer
y=10(1.05)^x
Does anyone know the answer to this question in terms of the percentage, and if it is a growth or decay?
Answer:
(Exponential) Growth
Step-by-step explanation:
Since r=1.05 exceeds 1, then it's exponential growth. Think about what would happen if r were 1. There would be no growth. You would always have your principal value of 10.
Answer:
Step-by-step explanation:
1.05 exceeds 1
Joyce packed lunches for the Shiloh Football Team. If she packed 75 pounds of bagged lunches. Each bag weighed 1 1/2 pounds. How many lunches did she pack?
50
60
70
80
WILL GIVE BRANLIEST
Answer:
50
Step-by-step explanation:
total weight=75 pounds
each bag weighed 1 1/2 pound=3/2 pound
no. of lunches=total weight/weight of each lunch
=75/(3/2)
=75*2/3
=50lunches
Answer:
50
Step-by-step explanation:
You need to divide 75 lb by 1 1/2 lb.
[tex] 75 \div 1 \frac{1}{2} = 75 \div \dfrac{3}{2} = \dfrac{75}{1} \times \dfrac{2}{3} = \dfrac{150}{3} = 50 [/tex]
Answer: 50
⚠️⚠️⚠️HELP HELP HELP IMAGE ATTACHED EXTRA POINTS
Answer:
2
Step-by-step explanation:
If the base area of a cylinder is 176.625
square centimeters and the height is 3.5
centimeters, determine the volume of the
cylinder
Answer:
618.1875 cm^3
Step-by-step explanation:
Volume = base area x height, so 176.625 x 3.5 = 618.1875
find the value of x
please
Answer:
x = 51
Step-by-step explanation:
These angles equal each other because they're vertical angles so:
2x + 8 = 110
2x = 110 - 8
2x = 102
x = 51
Find the mean of the data in the bar chart below.
Answer:
It's helping you find how many puppets were made by each puppeteer.
I got a question! what is managing liquidity?
Answer:
Liquidity management refers to a set of processes, strategies, and supporting mechanisms/tools that ensure a business or bank is able to access cash when and where it is needed. This cash could be used to pay for goods and services, payroll, debt repayment, or new investment opportunities
Step-by-step explanation:
These are all my points, if you can do every single question you will get 55 points
follow the screenshots. If that is not good enough let me know. I really need this
1) 6
2) 9
3) 7
4) 1
5) 8
6) 3
7) 0
8) 2
9) 4
10) 5
someone please explain this
Which graph has a y-intercept of 2 and a slope of - 1/3?
Julie is deciding which bank she should invest $5.000 with in order to maximize her
return. Select the answer that would earn Julie the most money after 10 years.
a. Bank A offers 6% APR compounded annually
b. Bank B offers 6% APR compounded semi-annually
c. Bank C offers 5.1% APR compounded daily
d. Bank D offers 6.3% APR compounded monthly
Answer:d
Step-by-step explanation:
Help me with this please
find the value of x in the Triangle shown below
x=?
Answer:
Step-by-step explanation:
We know there are 180° in EVERY triangle. Given one angle is 58°
This triangle shown has two sides that are the same, both are 6. The value of those two sides is irrelavent, except for the fact that this is an Isosceles triangle and the angle opposite those two sides are equal.
x + x + 58 = 180
2x + 58 = 180
2x = 180 -58
2x = 122
x = 61
-4.5 + 4.4 + ____ = 0
What’s missing?
-6.7 + 6.8
-6.7 + (-6.6)
7.2 + (-7.2)
7.2 + (-7.3)
Answer:
-6.7+6.8
Step-by-step explanation:
‐4.5+4.4+x=0====> -0.1+x=0===> x= 0.1
so we are looking for the choice with the answer of 0.1
-6.7+6.8=0.1✔
-6.7+(-6.6)= -13.3❌
7.2+(-7.2)=0❌
7.2+(-7.3)=(-0.1)❌
im almost done with this hw. plz help!!! give explanation if you actually know the answer so ik u dont just want points
Answer:
B or C
Step-by-step explanation:
Because there is a 50% chance on landing on a odd number 2 or a even number 2.
Hope this helps bye
If you flip three fair coins, what is the probability that you'll get heads on the first two flips and tails on the
last flip?
Answer:
1/8
Step-by-step explanation:
Khan Academy
Answer:
1/8
Step-by-step explanation:
Khan Academy
What’s the correct answer for this question?
What is the surface area?
1 mm
7 mm
3 mm
square millimeters
Answer:
0.62 cm
Step-by-step explanation:
help me plz...............
Answer:
2. 7.6
3. .057
4. Nine and three tenths
5. Forty two hundredths
6. Ninety two thousandths
Step-by-step explanation:
Answer:
1. 0.16
2. 7.6
3. 0.057
4. nine and three tenths
5. forty two hundredths
6. ninety two thousandths
I hope this helped
Convert.
23 ft =
yd
ft
Answer:
7 yards converted {}
Answer:
Step-by-step explanation:
23 ft = 7.66667 yd's
You divide 23 by 3 and you will get a decimal of 7.6 continued 6 5 times eventually leading to a 7.
Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!
HOPE THIS HELPED!!!
Find the measure of A as indicates in the picture.
In case the picture blurs
Top angle = x + 63
Left angle = x + 96
Right angle = x + 149
Answer:
m∠A = 58°
Step-by-step explanation:
In ΔABC,
m∠BAC = (x + 63)°
m∠ABC = (x + 96)° [Vertically opposite angles]
m∠ACB = (180° - 149°)
= 31°
By triangle sum theorem,
m∠ABC + m∠ACB + m∠BAC = 180°
(x + 96) + 31 + (x + 63) = 180°
2x + 190 = 180
2x = -10
x = -5
Therefore, measure angle A = (x + 63)
= -5 + 63
= 58°
Cost to store-$152, Mark up 50%, Selling Price-?
Answer:
Amount of selling cost = $228
Step-by-step explanation:
Given:
Amount of cost to store = $152
Mark up = 50%
Find:
Amount of selling cost
Computation:
Amount of mark up = Amount of cost to store x Mark up
Amount of mark up = 152 x 50%
Amount of mark up = $76
Amount of selling cost = Amount of cost to store + Amount of mark up
Amount of selling cost = 152 + 76
Amount of selling cost = $228
The company plans to increase the width and length of the large box by 4 inches each to create a new larger box. How many more of the small boxes will be able to fit inside this new larger box compared to the original large box?
Answer:
Answer:16
Step-by-step explanation: 2x2 is 4
4x4. Is 16w
W stand for width
Step-by-step explanation:
At Captain's Video Emporium, video club members can play PS5 games for $5 per night. The club also charges a $25.00 membership fee. Slope = __5 per night___________ Y-intercept = _____________ Equation _____________
Answer:
It's $499, unless you don't care about having a disc drive, then it's $399. That simplicity was by design, said Sony ...
In the figure, the angles are formed by a transversal and two parallel lines. Which angles are congruent?
Answer:
A is your correct answer.
1, 3, 5, and 7 are equal to each other and 2, 4, 6, and 8 are equal to each other.
Step-by-step explanation:
Congruent angles are angles that have the same measure. In this example, where two parallel lines are cut by a transversal line, the angles in the same position on the top line and bottom line are congruent. For example, angle 1 and 5 are in the same position, so they have the same measure.
Also, vertical angles (opposite angles, like 5 & 7 in your example) have the same measure.
Please let me know if you have questions about this.