Answers
Answer:
1/9
Step-by-step explanation:
120/1080 can be simplified to 1/9
Related Questions
Nolan set up the equipment shown in order to induce a current in a wire. A horizontal coil of wire on a spool is connected to 2 terminals of a meter with a needle, which can go from plus to minus. A hand holds a bar magnet oriented horizontally near the right end of the spool with the S pole toward the spool and the N pole toward the hand. Which best explains why no current is induced? The wire needs to be coiled less tightly. The wire needs to be straight, not coiled. The magnet needs to be moved through the coils of wire. The magnet needs to be held above the coils of wire.
Answers
Answer:
The answer is C on edge
Step-by-step explanation:
Took the test.
Answer:
The magnet needs to be moved through the coils of wire is correct
If y =
ya
x and x = -18, find y.
Answers
Answer:
y
=
3
√
−
2
a
x
y
=
−
3
√
−
2
a
x
Step-by-step explanation:
What conditions in the nucleus are likely to result in an atom that is unstable?
A. When the attraction of the electrostatic force is greater than the
repulsion of the strong force
B. When the repulsion of the electrostatic force is greater than the
attraction of the strong force
C. When the attraction of the electrostatic force is greater than the
attraction of the strong force
D. When the repulsion of the electrostatic force is weaker than the
repulsion of the strong force
Answers
Answer: D. When the attraction of the strong force is weaker than the repulsion of the electrostatic force
Step-by-step explanation: An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
Can someone help me I am stuck on this question it would mean the world if u helped me! and TYSM! for the people who helped me have a wonder full day!
Answers
Answer:
1.25 gallons of orange juice needed
Step-by-step explanation:
2(3/4)=3/2 cups per 1 person
24 x 3/2=36 cups for everyone
36 cups=18 pints
18-8=10 pints of orange juice
10 pints = 1.25 gallon
Answer:
1.25 gallons of orange juice
Step-by-step explanation:
24x2=48
3/4x48=36
36 cups into pints is 18 pints
18-8=10
10 pints into gallons is 1.25 gallons
a $2500 bond earns 3% interest per year, compounded annually
a) write a function, V, that models the value of the bond t years after it is purchased.
b)find the value of the bond after each of the first five years
Answers
Answer:
Step-by-step explanation:
find the common difference of the arithmetic sequence 3, -2, -7
Answers
Answer:
-5
Step-by-step explanation:
To find the common difference, take the second term and subtract the first term
-2 - 3 = -5
Check with the third term and the second term
-7 - (-2) = -7 +2 = -5
The common difference is -5
Pls helppp I’ll mark u brainliest
Answers
Answer:
I believe the answer to this question is (4,1)
5x+25=75 pls help appreciated
Answers
Answer:
x=10
Step-by-step explanation:
I guess solve for x
5x=50
x=10
Answer:
x=10
Step-by-step explanation:
Subtract to 25 from both sides
5x+25-25=75-25
so 75- 25 is 50
then ur left with 5x=50 so u divide because 5 is by x which means multipy so u do the opposite which is divding
5÷50 =10
An equation with real coefficients has (1-i), 3, and 4 among its roots. What is the lowest possible degree of the equation?
A: 3
B: 4
C: 5
D: 6
Answers
Answer:
D
Step-by-step explanation:
Lan pays a semiannual premium of $600
for automobile insurance, a monthly premium of $150
for health insurance, and an annual premium of $300
for life insurance.
The monthly expense is $
Answers
Answer:
$225
Step-by-step explanation:
Automobile = 600
Health insurance = 150 x 12 = 1800
Life insurance = 300
1800 + 300+600 = 2700
2700/12 = $225
The radius of a cylinder is 5 cm and the height is 7 cm.
Find the volume of the cylinder.
O 17517
7011
12011
No answer text provided.
Answers
Answer:
V = πr²h
V = 3.14 (5cm)²(7 cm)
V = 3.14 (25cm²) ( 7 cm)
V = 3.14 (175 cm³)
V = 549.50 cm³
A market researcher would like to know how much time the average college student spends watching sports. Suppose he does a preliminary study based upon a sample of 25 college students. The mean amount of time spent watching sports, by those in the sample, is 90 minutes per day with a standard deviation of 15 minutes per day.
(a) Which of the following numbers gives the value of the point estimate?
a. 15.
b. 25.
c. 90.
d. 0.
e. 95.
(b) Using the information given above, calculate the margin of error (in minutes) of the point estimate. Assume we would like to estimate the population mean with 95% confidence.
(c) Suppose that the researcher is not content with the current margin of error. He would like the margin of error of the point estimate to be no more than 4 minutes with 95% confidence. The researcher is unwilling to trust that the sample standard deviation from his previous study accurately estimates the true population standard deviation. He does, however, know that college students tend to watch sports between 0 and 120 minutes per day. What is the minimum sample size needed to obtain this amount of precision?
Answers
Answer:
a) c. 90.
b) The margin of error of the point estimate is of 6.19 minutes.
c) The minimum sample size needed to obtain this amount of precision is 289.
Step-by-step explanation:
(a) Which of the following numbers gives the value of the point estimate?
The value of the point estimate is the sample mean, of 90 minutes. So the answer is given by option c.
(b) Using the information given above, calculate the margin of error (in minutes) of the point estimate. Assume we would like to estimate the population mean with 95% confidence.
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 25 - 1 = 24
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.95}{2} = 0.975[/tex]. So we have T = 2.0639.
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}}[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
Here, we have [tex]s = 15, n = 25[/tex]. So
[tex]M = T\frac{s}{\sqrt{n}}[/tex]
[tex]M = 2.0639\frac{15}{\sqrt{25}}[/tex]
[tex]M = 6.19[/tex]
The margin of error of the point estimate is of 6.19 minutes.
Question c:
College students tend to watch sports between 0 and 120 minutes per day, which means that the standard deviation for population can be estimated as the standard deviation of an uniform distribution with [tex]a = 0, b = 120[/tex]. This standard deviation is:
[tex]\sigma = \sqrt{\frac{(b-a)^2}{12}}[/tex]
Then
[tex]\sigma = \sqrt{\frac{(120-0)^2}{12}}[/tex]
[tex]\sigma = 34.64[/tex]
Minimum sample size:
Now, since we have an estimate for the standard deviation of the population, we use the z-distribution.
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
The minimum sample size is n for which M = 4. So
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]4 = 1.96\frac{34.64}{\sqrt{n}}[/tex]
[tex]4\sqrt{n} = 1.96*34.64[/tex]
[tex]\sqrt{n} = \frac{1.96*34.64}{4}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96*34.64}{4})^2[/tex]
[tex]n = 288.1[/tex]
Rounding up:
The minimum sample size needed to obtain this amount of precision is 289.
What is the range of function g
Answers
Answer:
C. (-∞, 1)
Step-by-step explanation:
The function is translated by shifting one up and reflecting over the x-axis, so its maximum value will be approaching 1 and its minimum value will be approaching infinity.
Which plot has an outlier?
Answers
Answer:
girls
Step-by-step explanation:
an outlier is a number that is greater than the others.
boys doesnt have and outlier because the highest number has other numbers near it, while girls doesn't.
Which subtraction sentence shows the difference
Answers
Answer:
A
Step-by-step explanation:
because box is filled with four out of six and the second is filled with three out of six. So, you subtract the second one from the first one. I HOPE IT HELPS
A watermelon that weighed 12 pounds cost $5.76. What was the cost per ounce of the watermelon?
Answers
Answer:
69.12
Step-by-step explanation:
12x5.76
Answer
69
Step-by-step explanation:
12×5.75=69
Help ASAP if you get it right you get 100 points
Answers
Answer:
its e because i have done it before
Step-by-step explanation:
obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e obviously its e
Liza gets paid $5.25 an hour to babysit her little cousins. Last weekend, she watched them for three hours on Friday, nine hours on Saturday, and seven hours on Sunday. How much money does her aunt owe her for her babysitting services?
A. $99.85
B. $99.75
C. $95.00
D. $63.00
hurry quick
Answers
Answer:
B. $99.75
Step-by-step explanation:
Friday=5.25*3=15.75
Saturday=5.25*9=47.25
Sunday=5.25*7=36.75
15.75+47.25+36.75=99.75
Answer:
B
Step-by-step explanation:
5.25 x 19 =
(10 x 5.25) + (9 x 5.25) =
52.5 + 47.25 =
$99.75
WHAT IS 5 TIMES 2 I NEED HELP ASAP BECAUSE I CANT KEEP UP UGHHHH
Answers
Answer:
2X2
Step-by-step explanation:
Answer: 10
Step-by-step explanation: 5 x 2 = 10
5 + 5 = 10
What is the area of a quadrilateral with vertices at (2,-4), (4,-4), (2,1), and (4, 1).
How many units squared?
Answers
3) b) Solve for x using the quadratic formula.
2x2 + x-1=0
Answers
Answer: x = -3
Step-by-step explanation:
2 x 2 + x - 1 = 0
4 + x - 1 = 0
3 + x = 0
x = -3
Answer:
X=-3
Step-by-step explanation:
See steps below:)
20 points and brainliest!
Best answers please
Answers
Answer:
x = 12
Step-by-step explanation:
= 6 * (1/6 x)
= (6) * (2)
x = 12
Hope this helps....
Have a good day ahead :)
Answer:
The awnser is D) X=12
Step-by-step explanation:
Its not A because 1/12 times 1/6 is 1/72 and that's not equal to the sum.Its not B because 1/3 times 1/6 is 1/18 and that's not equal to the sum.Its not C because 1/6 times 3 is 1/2 and thats not equal to the sum.So, It has to be D. TO show my work, 12 times 1/6 is 2/1 and that is 2. It is equal to the sum.Sorry if its blurry:<
Find the area of the parallelogram whose sides are given by vectors a and b. Use the cross product only.
(Area of the parallelogram = a x b = a cross b)
a = [ 6,3,4], b = [ 2, 5, 1]
Answers
9514 1404 393
Answer:
√869 ≈ 29.48 square units
Step-by-step explanation:
The vector cross product is ...
(3·1 -5·4, -6·1 +2·4, 6·5 -2·3) = (-17, 2, 24)
The area is the magnitude of this vector, so is ...
√((-17)² +2² +24²) = √(289 +4 +576) = √869 ≈ 29.48
The area is about 29.48 square units.
Find the length of chord AB. Assume the graph is scaled by ones. Give exact and
approximate answers. Round to the nearest hundredth.
O sqrt(34); 5.83 units
O sqrt(24): 4.90 units
O sqrt(26): 5.10 units
O sqrt(10): 3.16 units
Answers
Answer: Choice C
exact length = sqrt(26) units
approximate length = 5.10 units
=======================================================
Work Shown:
We can use the distance formula.
A = (x1,y1) = (2,2)
B = (x2,y2) = (1,-3)
[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(2-1)^2 + (2-(-3))^2}\\\\d = \sqrt{(2-1)^2 + (2+3)^2}\\\\d = \sqrt{(1)^2 + (5)^2}\\\\d = \sqrt{1 + 25}\\\\d = \sqrt{26}\\\\d \approx 5.0990195\\\\d \approx 5.10\\\\[/tex]
The distance from A to B is exactly sqrt(26) units which approximates to 5.10 units. This distance represents the length of chord AB.
If each Automated Teller machine card of a certain bank has to have 4different digits in its passcode, how many different possible passcode can be there
Answers
Answer:
10,000
Step-by-step explanation:
0000 to 9999, so 10,000
Classify the following triangle. Check all that apply.
A
I A. Equilateral
B. Right
C. Acute
I D. Isosceles
O E Obtuse
O F. Scalene
Answers
Answer:
A and C
Step-by-step explanation:
The triangle given has three equal sides and three equal angles.
Since the sum of a triangle = 180°, therefore, each angle equals 60°
Thus, we can conclude that the triangle is an acute triangle because an acute triangle has all three sides measuring less than 90°. This implies that all it's angles are acute angles.
Also, since all its sides are equal and the same as well as it's three angles, based on this, we can equally say the triangle is an equilateral triangle.
The triangle can be referred to as an acute triangle and also as an equilateral triangle.
Daryl can jump 2 1/2 yards. sarah can jump 8 feet michell can jump 72 inches, witch statement is true.
Answers
Answer:
Where are the statements?
Step-by-step explanation:
Where are the statements?
In the figure, ∆BAT ≅ ∆CAT. Which statement is NOT true by CPCTC?
Answers
Answer:
Option CStep-by-step explanation:
Since ΔBAT ≅ ΔCAT, the statements that are true by CPCTC:
AB ≅ AC∠BAT ≅ ∠CAT∠BTA ≅ ∠CTAThe statement that is not true is:
SB ≅ ST, these are not corresponding parts of the given triangles∆BAT=∆CAT
AB=ACTrue
<BAT=<CATTrue
SB=STFalse
SB=SC not ST
Which of the following expressions are equivalent to -8/11-3/4-1/4 (choose three answers
Answers
Answer:
This is the answer: choose
A
D
E
How long is the minor arc in degrees BC