Answer:
1
Step-by-step explanation:
The different possibilities for flipping two coins are:
TT
TH
HT
HH
Only 1/4 is two heads.
Since you're finding the best prediction possible for the number of times both coins will land on heads out of 4 times, that means its 1/4 * 4 = 1 time
Answer:
1/4 is the probablity
Step-by-step explanation:
if you flip 2 coins one time the no.of outcome are 4 if you flip is 4 time no.of outcomes are 16
P(E)= favourable outcomes/ total no.of outcomes
= 4/16
= 1/4
PLS MARK BRAINLIEST, THNX
Find the x-intercept of the following line. y=2/3x−4
(4,0) is the x-intercept of the line with the equation y = (2/3)x - 4.
What is the x-intercept of the given equation of line?Given the equation of the line;
y = (2/3)x - 4x-intercept: ?X-intercept is simply the point at which a line crosses the x-axis.
To Solve the x-intercept, substitute in 0 for y in the equation and solve for x.
y = (2/3)x - 4
0 = (2/3)x - 4
Multiply each term by 3
3(0) = 3(2/3)x - 3(4)
0 = 3x - 12
Add 12 to both sides
0 + 12 = 3x - 12 + 12
12 = 3x
3x = 12
x = 12/3
x = 4
Therefore, the x-intercept is (4,0).
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Determine from the balanced chemical reaction if
the derived mole ratio is correct or incorrect.
It's incorrect. There are 6 moles of NaBr produced for every 3 moles of Na₂S among the reactants (as well as 2 moles of FeBr₃), so the mole ratio of NaBr to Na₂S should be 2 : 1, not 1 : 1.
100pts for who ever answers question(all 3)
Answer:a=9 b=27.5 c=41.25
Step-by-step explanation:
the internet
a building block in the shape of a cube was found in a toy box . it has side lengths of 1.1 inches what is the volume of the building block cubic inches? your answer may be exact or rounded to the nearest tenth.
side= 1.1 inches
to find:the volume of the given cube rounded to the nearest tenth.
solution:\(v = {a}^{3} \)
\(v = {1.1}^{3} \)
\(v = 1.331 \: {in}^{3} \)
\(v = 1 .33 \: {in}^{3} \)
therefore, the volume of the given cube is 1.33 cubic inches.
volume= a^3
= 1.1^3
= 1.331 in^3
= 1.33 in^3
During the exponential phase, e.coli bacteria in a culture increase in number at a rate proportional to the current population. If growth rate is 1.9% per minute and the current population is 172.0 million, what will the population be 7.2 minutes from now?
During the exponential phase, e.coli bacteria in a culture increase in number at a rate proportional to the current population. If growth rate is 1.9% per minute and the current population is 172.0 million, the population 7.2 minutes from now can be calculated using the following formula:
P(t) = P ₀e^(rt)where ,P₀ = initial population r = growth rate (as a decimal) andt = time (in minutes)Substituting the given values, P₀ = 172.0 million r = 1.9% per minute = 0.019 per minute (as a decimal)t = 7.2 minutes
The population after 7.2 minutes will be:P(7.2) = 172.0 million * e^(0.019*7.2)≈ 234.0 million (rounded to the nearest tenth)Therefore, the population of e.coli bacteria 7.2 minutes from now will be approximately 234.0 million.
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What change do you have to make to the graph of f (x) = 7x in order to graph the function g (x) = 7x+10?
To graph the function g(x) = 7x + 10, we shift the graph of f(x) = 7x vertically by adding a constant term of +10. This means every y-coordinate on the graph increases by 10 units. The slope of the line remains the same at 7. The resulting graph is a straight line passing through (0, 10) with a slope of 7.
To graph the function g(x) = 7x + 10, you need to make the following change to the graph of f(x) = 7x:
1. Translation: The graph of f(x) = 7x can be shifted vertically by adding a constant term to the equation. In this case, the constant term is +10.
Here's how you can do it step by step:
1. Start with the graph of f(x) = 7x, which is a straight line passing through the origin (0,0) with a slope of 7.
2. To shift the graph vertically, add the constant term +10 to the equation. Now, the equation becomes g(x) = 7x + 10.
3. The constant term of +10 means that every y-coordinate of the points on the graph will increase by 10 units. For example, the point (0,0) on the original graph will shift to (0,10) on the new graph.
4. Similarly, if you take any other point on the original graph, such as (1,7), the corresponding point on the new graph will be (1,17) since you add 10 to the y-coordinate.
5. Keep in mind that the slope of the line remains the same, as only the y-values are affected. So, the new graph will still have a slope of 7.
By making this change, you will have successfully graphed the function g(x) = 7x + 10.
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HURRY!! select ALL the correct answers
Which operations involving complex numbers have solutions represented by point A on the graph?
We have to find the solutions represented by point A on graph.
point A is represented (1 , 5i)
1. (1 - 4i) - (2 + i)
= 1 - 4i - 2 - i
= -1 - 5i
This option is not correct because it does not as same point as A.
2. -1(1 - 4i) + (2 + i)
= -1 + 4i + 2 + i
= 1 + 5i
This solution is same as point A so this option is correct.
3. (-1 + 4i) - (2 + i)
= -1 + 4i - 2 - i
= -3 + 3i
This option is not correct because it does not as same point as A.
4. (-1 + 4i) + (2 + i)
= -1 + 4i + 2 + i
= 1 + 5i
This solution is same as point A so this option is correct.
Therefore options 2 and 4 are correct.
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Which is greater: 5 yards or 150 inches?
Answer:
5 yards.
Step-by-step explanation:
5 yards = 180 inches
Rectangles abcd and klmn are similar. If their permitted are 20 and 16, and the area of the larger rectangle is 25, what is the area of the smaller rectangle?
The area of the smaller rectangle (KLMN) is 16.
Since rectangles ABCD and KLMN are similar, their corresponding sides are proportional.
Let's assume the length of side AB in rectangle ABCD is x, and the length of side KL in rectangle KLMN is y.
We can set up the proportion:
(x/y) = (20/16)
To find the area of the smaller rectangle, we need to determine the ratio of their areas.
Since the area of a rectangle is given by the product of its length and width, the ratio of the areas will be equal to the square of the ratio of their sides:
(Area of ABCD)/(Area of KLMN) = (x²)/(y²)
We are given that the area of ABCD is 25, so we have:
25/(Area of KLMN) = (x²)/(y²)
To find the area of KLMN, we need to substitute the values of x and y from the proportion:
25/(Area of KLMN) = (20/16)²
Simplifying the right side:
25/(Area of KLMN) = (5/4)²
25/(Area of KLMN) = 25/16
Cross-multiplying:
25 × 16 = 25 × (Area of KLMN)
400 = 25 × (Area of KLMN)
Dividing both sides by 25:
16 = Area of KLMN
Therefore, the area of the smaller rectangle (KLMN) is 16.
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Identify the equation of direct variation given that y varies directly with x. y is 75 when x is 5.
Answer:
y = 15x
Step-by-step explanation:
The equation for direct variation is ...
y = kx
where k is the constant of proportionality.
__
We can find k by dividing by x:
y/x = k
Using the given values, we find it to be ...
75/5 = k = 15
Using this value of k in the equation, we find the equation of direct variation is ...
y = 15x
For his long distance phone service, Carlos pays an $8 monthly fee plus 6 cents per minute. Last month, Carlos's long distance bill was $12.08. For how many minutes was Carlos billed?
Answer:
68 minutes
Step-by-step explanation:
12.08=0.06x+8
4.08=0.06x
68=x
HELP!!!ITS DUE IN AN HOUR
A salesperson at a jewelry store earns 5% commission each week. Last week, Heidi sold $530
worth of jewelry. How much did she make in commission? How much did the jewelry store make
from her sales?
Heidi earned in commission.
Answer:
26.5
Step-by-step explanation:
dont worry I'm actually the salesperson at the jewlery store
Step-by-step explanation:
it is not confrmed answer
commission:106%
what is the journal entry of wages paid in first month of operation Rs 6000 and outstanding Rs 1000
Solve the equation and enter the value of x below.
3x+ (-8)= -71
Answer here
\(3x+(-8)=-71\)
Simplify:
\(3x-8=-71\)
Add 8 to both sides:
\(3x-8+8=-71+8\)
\(3x=-63\)
Divided both sides by 3:
\(\dfrac{3x}{3} =\dfrac{-63}{3}\)
\(\fbox{x = -21}\)
an airlane is on heading of 075 degree at 250 km/h wind is blowing from 300 Determine the resultan velocity of the airplane using cartesian vectors and state the ground speed and bearing of the resultant
The airplane's groundspeed is approximately 242.25 km/h, and the resultant bearing is approximately 55.04° (relative to true north, measured clockwise).
How to solve for the airplane's groundspeed
To determine the resultant velocity of the airplane, we need to break down the airplane's velocity and the wind's velocity into their respective components and add them. Let's assume that the angles are measured clockwise from true north.
Let's denote:
Vp = airplane's speed = 250 km/h
θp = airplane's heading = 075 degrees
Vw = wind's speed = 85 km/h
θw = wind's heading = 300 degrees
We can then find the eastward (x) and northward (y) components of the velocities:
For the airplane:
Vpx = Vp * cos(θp) = 250 * cos(75 degrees) = 64.95 km/h
Vpy = Vp * sin(θp) = 250 * sin(75 degrees) = 241.92 km/h
For the wind:
Vwx = Vw * cos(θw) = 85 * cos(300 degrees) = 73.60 km/h
Vwy = Vw * sin(θw) = 85 * sin(300 degrees) = -42.50 km/h
We then sum the x and y components of the two velocities to find the resultant velocity components:
Vrx = Vpx + Vwx = 64.95 km/h + 73.60 km/h = 138.55 km/h
Vry = Vpy + Vwy = 241.92 km/h - 42.50 km/h = 199.42 km/h
The magnitude of the resultant velocity, which represents the groundspeed (Vr), is found using the Pythagorean theorem:
Vr = sqrt((Vrx)^2 + (Vry)^2) = sqrt((138.55)^2 + (199.42)^2) = 242.25 km/h
The bearing (θr) of the resultant velocity (relative to north) can be found using inverse tangent:
θr = atan2(Vry, Vrx) = atan2(199.42, 138.55) = 55.04 degrees
Therefore, the airplane's groundspeed is approximately 242.25 km/h, and the resultant bearing is approximately 55.04° (relative to true north, measured clockwise).
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Suppose a floor is going to be tiled with
square stone tiles that measure ½ foot on
each side. How many tiles are needed for a
rectangular floor that measures 14 ½ feet
long and 8 ½ feet wide?
Answer:
20 tiles
Step-by-step explanation:
A weight-loss clinic advertised that last month its patients, on average,8lb lost . Assuming that average refers to the mean, which of the following claims must be true based on this information? Note: More than one statement could be true. If none of the statements is true, mark the appropriate box. Last month all of their patients lost at8lb least . Last month more than half of their patients lost at least 8lb. Last month some of their patients lost more than4lb . Last month at least one of their patients lost exactly 8lb. Two months ago some of their patients lost at least 8bl. None of the above statements are true.
Answer:
Given:
A weight-loss clinic advertised that last month its patients, on average, lost 8 lbs
Average refers to mean
a. Last month all of their patients lost at least 8 lbs.
Answer: Mean or average is a measure of central tendency or in other terms refers to the central value of the dataset. If the value of mean/average is 8lb, it signifies that there are some patients who have lost weights more than 8 lbs. So, this statement is False
b. Last month at least one of their patients lost exactly 8 lbs.
Answer: It is a possibility that all the patients have lost their weights greater than or less than 8 lbs. Since the mean is computed by summing up all the values (weight loss in this case) by the total number of observations, it is possible that there can be no patient who has lost exactly 8lbs. So, this statement is False.
c. Two months ago some of their patients lost at least 8 lbs.
Answer: It is clearly mentioned that last month its patients, on average, lost 8 lbs. No information is given about the weight loss of patients before the last month. So, there is not sufficient data to check whether this statement is correct or not.
d. Last month at least one of their patients lost less than 3 lbs.
Answer: It is a possibility that all the patients have lost their weights greater than 3 lbs. Since the mean is computed by summing up all the values (weight loss in this case) by the total number of observations, it is possible that there can be no patient who has lost less than 3lbs. So, this statement is False.
e. Last month, the number of their clients who lost less than 8 lbs was equal to the number of their clients who lost more than 8 lbs.
Answer: Mean is a measure of central tendency which is computed by the diving sum of all observations with the number of all observations (the sum of observations lesser than the mean is compensated by the sum of observations greater than the mean) and for the mean equal to 8lbs, there should be an equal number of people who lost less than 8 lbs and the number of people who lost more than 8 lbs. Hence, this statement is True.
Answer e.Last month, the number of their clients who lost less than 8 lbs was equal to the number of their clients who lost more than 8 lbs is True
the statements that must be true based on the information are:
- Last month all of their patients lost at least 8 lb.
- Last month more than half of their patients lost at least 8 lb.
- Last month some of their patients lost more than 4 lb.
- Last month at least one of their patients lost exactly 8 lb.
Based on the information provided, we can make the following conclusions:
1. Last month, all of their patients lost at least 8 lb. (This statement is true since the average refers to the mean, and the average weight loss was 8 lb. Therefore, all patients must have lost at least 8 lb.)
2. Last month, more than half of their patients lost at least 8 lb. (This statement is true since the average weight loss was 8 lb, which means that at least half of the patients must have lost 8 lb or more. As the average is pulled up by higher values, more than half should have achieved at least 8 lb weight loss.)
3. Last month, some of their patients lost more than 4 lb. (This statement is true since the average weight loss was 8 lb. If the average is 8 lb, then there must be patients who lost more than that, and losing more than 4 lb is definitely possible.)
4. Last month, at least one of their patients lost exactly 8 lb. (This statement is true since the average weight loss was 8 lb. For the average to be exactly 8 lb, at least one patient must have lost exactly 8 lb.)
5. Two months ago, some of their patients lost at least 8 lb. (There is no information provided in the given data to make any claims about weight loss two months ago, so we cannot conclude this statement based on the information given.)
So, the statements that must be true based on the information are:
- Last month all of their patients lost at least 8 lb.
- Last month more than half of their patients lost at least 8 lb.
- Last month some of their patients lost more than 4 lb.
- Last month at least one of their patients lost exactly 8 lb.
The statement "Two months ago some of their patients lost at least 8 lb" cannot be determined from the given information, so it is not necessarily true or false based on the data provided.
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In a study of author productivity, a large number of authors were classified according to the number of articles they had published during a certain period. The results were presented in the accompanying frequency distribution:
Number of papers 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Frequency 708 204 127 50 33 28 19 19 6 7 6 7 4 4 5 3 3
Required:
Construct a histogram corresponding to this frequency distribution.
Answer:
Follows are the response to this question:
Step-by-step explanation:
It is the most important positive skewness of the data is the distribution.
Notes:
Another approach for Mini-tab to generate a graph from the data set is through the capability of Mini-tabs, for instance, to type 784(1) in 784 copies of its number 1, to input multiple copies of the same number. Frequency data were input with both the following attached file mini-tab directions in this workout:
2. Suppose the price of good x increased from 4 birr to 5 birr. Because of change price of good x, quantity demand of good y changed from 5,000 to 6,250. a. Find cross price elasticity of demand b. What types of goods (good x and good y) are?
Based on the cross-price elasticity of Demand, we can conclude that good X and good Y are substitutes.
Let's calculate the cross-price elasticity of demand using the given information:
a. Find the percentage change in quantity demanded of good Y:
Percentage Change in Quantity Demanded of Good Y = (New Quantity Demanded - Initial Quantity Demanded) / Initial Quantity Demanded * 100
Percentage Change in Quantity Demanded of Good Y = (6250 - 5000) / 5000 * 100 = 25%
b. Find the percentage change in the price of good X:
Percentage Change in Price of Good X = (New Price - Initial Price) / Initial Price * 100
Percentage Change in Price of Good X = (5 - 4) / 4 * 100 = 25%
Now, we can calculate the cross-price elasticity of demand:
Cross-Price Elasticity of Demand = Percentage Change in Quantity Demanded of Good Y / Percentage Change in Price of Good X
Cross-Price Elasticity of Demand = 25% / 25% = 1
b. Based on the calculated cross-price elasticity of demand, we can determine the types of goods:
If the cross-price elasticity of demand is positive (as in this case, where it is 1), it indicates that the two goods are substitutes. This means that when the price of good X increases, the quantity demanded of good Y also increases, suggesting that consumers view these goods as alternatives to each other.
Therefore, based on the cross-price elasticity of demand, we can conclude that good X and good Y are substitutes.
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Answer:
Step-by-step explanation:
You roll a die 2 times. What is the probability or rolling a 6 and then a 2?
Answer:
1 out of 6
Step-by-step explanation:
Each roll of the die is an independent event. This means that the second roll does not rely on the first roll. The probability of rolling a six is one out of six. The probability of rolling a two is also one out of six. Since the two events are independent of each other, you would take the average of the two probabilities, which since they are both one out of six, the probability of rolling a six and then a two is one out of six.
can someone please help? the question is in the picture.
Answer: b
Step-by-step explanation: a right triangle should have a right angle so you´d need atleast one right angle and two acute angles.
Solve:
| 2 ( x - 5 ) | + 11 = 17
Answer:
5x5x78x68x85x68x66445x6446===12
What is the length of a diameter of a circle with a radius of 5.7 cm?
Answer:
i believe 27.2 centimeters
Answer:
11.4
Step-by-step explanation:
A radius (labeled r)
\(d = r \times 2 \\ = 5.7 \times 2 \\ = 11.4\)
stops at the center so its half the diameter, thus the diameter (labeled d) is:
3y-1/3=5
*we have to figure out the value of y*
Answer:
To solve for y in the equation:
3y - 1/3 = 5
First, we need to isolate the term containing y by adding 1/3 to both sides of the equation:
3y - 1/3 + 1/3 = 5 + 1/3
Simplifying the left-hand side:
3y = 5 + 1/3
Next, we need to isolate y by dividing both sides of the equation by 3:
3y/3 = (5 + 1/3)/3
Simplifying the right-hand side by finding a common denominator:
3y/3 = (15/3 + 1/3)/3
3y/3 = 16/3
Simplifying the left-hand side:
y = 16/9
Therefore, the solution to the equation 3y - 1/3 = 5 is y = 16/9.
Step-by-step explanation:
What type of association does the graph show?
A. positive nonlinear
B. positive linear
C. negative nonlinear
D. negative linear
Answer:
B. Positive linear
Step-by-step explanation:
First, this graph is a linear graph because a linear graph is a straight line. The graph in the diagram is also a straight line, so it is linear.
Also, notice how as x increases, y increases. This means that the graph is positive
please help brainliest to correct answer
Answer:
Question to number 6 is-3
Question to number 7 is 3
Question to number 8 is 2 to the second power
Step-by-step explanation:
please correct me if I’m wrong and for number 8 I am correct it’s just I didn’t know how to put the little 2 on top of the big one
Step-by-step explanation:
question 6 is - 3
question 7 is 3
question 8 is 4
What is the greatest common factor of 96 and 71?
The greatest common factor is the greatest number that is a factor of two (or more) other numbers.
When we find all the factors of two or more numbers, and some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
The greatest common factor of two or more other numbers can be found using the step below:
Step 1: Write out the factors of each of the numbers given,
Step 2: Write out the common factors in the numbers given
Step 3: Write out the number that is the largest factor that is common to the factors of the given numbers.
The abbreviation of Greatest Common Factor is GCF.
For example, the GCF of 15 and 21 is 3, this is because 1 and 3 are common factors of both 15 and 21, and 3 is the greatest of them.
Using the steps above, the greatest common factor of 96 and 71 is as shown below:
Step 1: Write out the factors of the two given numbers
the factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, and 96
71 is a prime number, so its factors are itself and 1. The factors of 71 are 1 and 71
Step 2: Write out the common factors in the numbers given
The common factor in 96 and 71 is 1
Step 3: Write out the number that is the largest factor that is common to the factors of the given numbers.
The largest common factor would now be 1.
Hence, the greatest common factor of 96 and 71 is 1
Can you help me with this please???
Answer:
C
Step-by-step explanation:
divide 14 by 4 to solve it, you get 3.5 or 3 1/2
Find the exponential function that satisfies the given conditions: initial value = 70, decreasing at a rate of 0.43% per week
Answer choices:
A) f(t) = 70 x 0.9957^t
B) f(t) = 70 x 1.43^t
C) f(t) = 0.43 x 0.3^t
D) f(t) = 70 x 1.0043^t
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
Answer:
Step-by-step explanation:
considering A). hemisphere diameter = 48 yd
volume of hemisphere = (2/3)*pi*(r)^3
the radius of hemisphere = diameter/2 = 48/2 = 24 yd
hence, the volume of hemisphere = (2/3)*pi*(24)^3 yd^3
taking pi = 3.14
volume = 28938.24 yd^3 approximately volume = 28940 yd^3
considering B). Circumference of a great circle = 26 m
circumference of sphere = 2*pi*r
therefore r = 4.14 m
volume of sphere = (4/3)*pi*(r)^3
volume of sphere = 297.077 m^3
Answer:
24. A. 28952.9 yd²
B. 297.2 m³
Step-by-step explanation:
24.
A.
diameter=48 yd
radius (r)=diameter/2=48/2=24yd
We have
Volume of Hemisphere= ⅔*πr³=⅔*π*r³
Substituting value
Volume of Hemisphere=⅔*π*24³=28952.9 yd³
B.
Circumference of great circle=2πr=26m
2πr=26
r=26/(2π)
r=4.14
Now
Volume of sphere = 4/3*πr³
Volume of sphere=4/3*π*4.14³=297.2 m³