Answer:
Step-by-step explanation:Angle from hour hand to minute hand at 1:15
At 1:15, the hour hand has moved 75 out of 720 possible times from the top of the clock. 75 times 0.5 degrees is 37.5 degrees.
At 1:15, the minute hand has moved 15 out of 60 possible times from the top of the clock. 15 times 6 degrees is 90 degrees.
90 - 37.5 = 52.5 degrees
Angle from minute hand to hour hand at 1:15
The angle from the minute hand to the hour hand is simply 360 degrees minus the degrees from the hour hand to minute hand that we calculated above.
360 - 52.5 = 307.5 degrees.
Now you know how to calculate the degrees of the two angles created by the hour hand and minute hand on a 12-hour clock at 1:15. Again, the two angles created by the hour hand and minute hand at one-fifteen are 52.5 degrees and 307.5 degrees.
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Angle between hour and minute hand at 1:16
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cindy throws one red and one blue dice. find the probability that the sum of the two dice is less than 4.
The probability that the sum of the two dice is less than 4 is 3/36, which simplifies to 1/12.
What is dice probability?Dice probability refers to the likelihood of a certain outcome when rolling one or more dice. The probability of rolling a particular number on a fair six-sided die, for example, is 1 in 6 or approximately 16.67%. The probability of rolling any number from 1 to 6 on a single die is always the same since each face has an equal chance of landing face up.
Given by the question.
To finds the probability that the sum of the two dice is less than 4, we need to list all the possible outcomes when Cindy throws one red and one blue dice, and then count the number of outcomes that satisfy the condition.
Possible outcomes when throwing two dice:
Red Blue
1 1
1 2
1 3
1 4
1 5
1 6
2 1
2 2
2 3
2 4
2 5
2 6
3 1
3 2
3 3
3 4
3 5
3 6
4 1
4 2
4 3
4 4
4 5
4 6
5 1
5 2
5 3
5 4
5 5
5 6
6 1
6 2
6 3
6 4
6 5
6 6
There are 36 possible outcomes when throwing two dice.
Outcomes where the sum of the two dice is less than 4:
Red Blue
1 1
1 2
2 1
There are 3 outcomes where the sum of the two dice is less than 4.
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what is (-4+2i)-5-4i)
Answer:
Step-by-step explanation:
you mean (-4+2i)-(5-4i)
=-4+2i-5+4i
=-9+6i
Determine the point estimate of the population mean and margin of error for the confidence interval with lower bound 26 and upper bound 38.
Answer
The point estimate of the mean is \(\= x = 32\)
The margin of error is \(E =6\)
Explanation
From the question we are told that
The lower bound of the interval is \(a = 26\)
The upper bound of the interval is \(b = 38\)
Generally the point estimate of the population mean is mathematically represented as
\(\= x = \frac{a +b}{2}\)
=> \(\= x = \frac{26 +38}{2}\)
=> \(\= x = 32\)
Generally the margin of error is mathematically represented as
\(E = \frac{ b- a}{2}\)
=> \(E = \frac{ 38- 26}{2}\)
=> \(E =6\)
Based on the median of the samples, what is a reasonable estimate of the number of students that bike to school? Round to the nearest whole number.
PLEASE ANSWER!!!
The number of students that bike to school is 18
How to determine the valueThe median is described as the middle number of a set of data when the values are arranged in an ascending order from the least to the greatest.
We should also know that the median is one of the measures of central tendency.
From the information given, we have that the data set representing the number of students is;
10, 11, 12 , 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
Then, we have that the median number is;
Median = 17 + 18/2
add the values
Median = 35/2
Divide the values
Median = 18 students
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A cross-country course is in the shape of a parallelogram with a base of length 3 mi and a side of length 2 mi. What is the total length of the cross-country course.
Based on the fact that the cross-country course is shaped like a parallelogram, the total length of the cross-country course is 10 miles.
What is the total length?The total length of the cross-country course will be the perimeter of the shape that the course is shaped like.
As this course is shaped like a parallelogram, the total length would therefore be:
= Base + Base + Length + Length
Solving gives:
= 3 + 3 + 2 + 2
= 6 miles
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i need help solving ------> 2y = 18
Answer: 9
Step-by-step explanation:
divide 2 by y and 18 and the the 2divided by 2 cancel out. then divide 18 by 2 and you get y = 9
Complete the sentence to explain how to use mental math to express 12/25 as a percent.
Multiply the numerator and the denominator by______ to get ---------
100
which is the same as ___%
Answer:
the first one is 4 i think and the last one is 48 percent. im not sure if the dotted line is a underline tho
Step-by-step explanation:
:))
Multiply the numerator and the denominator by 100 to get 48/100
which is the same as 48% .
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.
Given,
Fraction = 12/25
To convert into percentage
divide the number by 100 and multiply by 100.
= ((12/25)×100)/100
= 12 × 100/25×100
= 48/100
= 48%
Hence, 48% is the expression of 12/25 as percent gotten by multiplying and dividing with 100.
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HELPP BRAINLIEST!!!!!
Answer:
--you would decompose it into a rectangle and triangle along the dotted line then add the two areas together to get the total area. the area of the trapezoid is 59.375 ft²
--i havent seen the other problem so i cant answer the convince me part, but you should be able to say how its different from the answer above^^^
Step-by-step explanation:
hope this helps :)
Solve 4^x+2 = 2^x-1. What are the exact and approximate solutions?
Answer:
no solution
Step-by-step explanation:
examples: 4^1 + 2 = 2^ 1 -1 and the answer is 6 = 1 which is not true. So its gonna be hard for them to have a solution.
Answer:
C. x = -5 ln 2/ ln 2 = -5
Step-by-step explanation:
There are 10 USB drives in a box and 3 are defective. Two drives are to be selected, one after the other. What is the probability of selecting a defective USB followed by another defective USB?
\(|\Omega|=10\cdot9=90\\|A|=3\cdot2=6\\\\P(A)=\dfrac{6}{90}=\dfrac{1}{15}\approx6.7\%\)
What is the measure of each angle inside the figure (the value of x)?
(Hint-This equals 360° divided by the number of sides of the figure.)
Answer:
60
Step-by-step explanation:
360 degrees divided by 6 sides equal 60 degrees
35. Which of the following is a good reason to contribute to a retirement savings plan offered by an employer?
OA. The federal government allows your contribution to be tax deferred.
OB. Your employer will take over contributions once you have continuously contributed for 5 years.
OC. An employer will usually allow you to pay reduced taxes and premium deductions each pay cycle.
OD. You will receive stimulus funds from the federal government.
(C) "Your employer will typically allow you to pay reduced taxes and premium deductions each pay cycle" is an excellent justification for enrolling in an employer-sponsored retirement savings plan.
What is a retirement savings plan?You are permitted to contribute as much of your salary as you choose to the Retirement Savings Plan on a tax-advantaged basis, up to the yearly limit established by the Federal Revenue Agency (IRS).
A retirement savings plan (RSP), also known as an RRSP, is a form of financial account used in Canada to hold savings and investment assets.
When opposed to investing outside of tax-preferred accounts, RRSPs offer a number of tax benefits.
They were launched in 1957 to encourage both workers and independent contractors to save for retirement.
They are subject to a number of limitations outlined in the Canadian Income Tax Act.
Savings accounts, guaranteed investment certificates (GICs), bonds, mortgage loans, income trusts, mutual funds, corporate shares, exchange-traded funds, foreign currency, and funds sponsored by labor are examples of approved assets.
Therefore, (C) "your employer will typically allow you to pay reduced taxes and premium deductions each pay cycle" is an excellent justification for enrolling in an employer-sponsored retirement savings plan.
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Boo is with the other monster kids. She accounts 20% of the group. What fraction of the group is boo?
Answer:
1/5
Step-by-step explanation:
20 times 5 =100. 20/100 = 1/5
Answer:
1/5
Step-by-step explanation:
20 x 5 =100 . 20/100 = 1/5
Determine the number and type of solutions for the equation x^2+8x+15=0
Two different irrational-number solutions
One repeated irrational-number solution
One repeated rational-number solution
Two different rational-number solutions
Two imaginary-number solutions
Answer:
Step-by-step explanation:
disc=8²-4×1×15=64-60=4=2²>0
it is a perfect square and >0
so it has one repeated rational number solution.
36-40. The probability that a fatal car accident is alcohol related is over 40%. The probability that a fatal accident happens at night is 5 times more than the probability that it happens during the day.
What should drivers do to stay safe on the road? Write a probability facts that is based in your real life events?
When Amella started painting, the paint can had 7/8 gallon in it. She used 3/8 gallons How much paint is left in the can?
Answer: If Amella started with 7/8 gallon of paint in the can and used 3/8 gallons, then the amount of paint left in the can can be found by subtracting the amount used from the amount started with:
Amount left = Amount started with - Amount used
Amount left = 7/8 - 3/8
Amount left = 4/8 or 1/2 gallon
Therefore, Amella has 1/2 gallon of paint left in the can.
Step-by-step explanation:
A car travels 150 miles in 2 hours. Which of the following represents a corresponding unit rate? Choose all that apply.
A. 300 miles per minute
B. 75 miles per hour
C. 1.25 miles per minute
D. 1800 miles per day
2x^2-20x+48 factor completely
Answer:
2(x - 6) (x - 4)
Step-by-step explanation:
Let's check
2(x - 6) (x - 4)
= (2x - 12) ( x - 4)
= 2x^2 - 8x - 12x + 48
= 2x^2 -20x + 48
So, 2(x - 6) (x - 4) is the correct answer.
Answer: 2(x-6)(x-4)
Step-by-step explanation: To first factor this we need to simplify this expression. We can see that 2 is a common term, so we can divide everything by 2. This would result in us getting 2(x^2-10+24). Now we factor, we have to find which terms multiply to 24, and add to -10. We can start off at 1 and 24, No. We can slowly go up and find that those two numbers are -6 and -4. We can now re-write this as 2(x-6)(x-4).
5. On a cattle farm, the ratio of beef cattle to dairy cattle is 4:3.
3
(a) Interpret the ratio: For every
beef cattle, there are
cattle.
dairy
(b) If there are 24 dairy cattle, how many
beef cattle would there be? Show your
work.
For every 4 beef cattle there is 3 dairy cattle. For 24 dairy cattle there will be 32 beef cattle as per the given ratio of 3:4.
What is ratio?An ordered pair of numbers a and b, written as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. For instance, you could write the ratio as follows: 1: 3 if there is 1 boy and 3 girls (for every one boy there are 3 girls). The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two things.
Here,
a. No for every 4 beef cattle there is 3 dairy cattle.
b. 4/3=x/24
x=4*24/3
x=32 beef cattle
There are 3 dairy cattle for every 4 beef cattle. According to the stated ratio of 3:4, there will be 32 beef cattle for every 24 dairy cattle.
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Joes annual income has been increasing each year by the same dollar amount. The first year his income was $15,900 and the 6th year his income was $22,400. In which year was his income $38,000.
Answer:
17th year
Step-by-step explanation:
his first year is 15,900 and his 6th year is 22,400. that is a 5 year difference, so subtract the two numbers, and divide them by 5 to get the average income he gets each year.
(22,400-15,900)/5=(6,500)/5=1300
so, we have our slope 1,300. the y intercept is 15,900 because his income is the same after having 15,900. so our equation is y=1,300x+15,900
y is total income and x is years
we have our y (38,000) so we plug it in.
38,000=1,300x+15,900
finally we solve and we should get our x.
38,000-15,900=1,300x+15,900-15,900
22,100=1,300x
22,100/1,300=1,300x/1,300
17=x
Find the value of Z according to this problem. thank you!
Step-by-step explanation:
since z=v/I where v=7+8i and I=5i
z=7+8i/5i
according to complex number 1/i=-i
so we have
z=-i(7+8i)/5
=(-7i-8i²)/5
from complex number i²=-1
we have
z=(-7i-(-8))/5
z =(-7i+8)/5
2,414(goal) each person pays 34 how many people need to come to reach that goal
The required number of people that contribute 34 pays in the goal of 2414 is 71.
What is arithmetic?According to the assertions, it deals with a number of operations in mathematics. Addition, subtraction, multiplication, and division are the four main arithmetic operators.
Here,
as given in the question,
Total contribution = 2414
Contribution by each person = 34
Applying arithmetic operations
number of people = 2414 / 34
Number of people= 71
Thus, the required number of people that contribute 34 pays in the goal of 2414 is 71.
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Let The adjacency matrix of a directed graph G, which may have
parallel arcs. Prove that element i, j of matrix Na references the number of paths of
length n from node i to node j.
Answer:
d
Step-by-step explanation:
i did it
Please help image attached
A) is -4 a solution to this inequality
B) choose the correct inequality
Find the 12th term of the geometric sequence 2,10,50
12th term of the geometric sequence is 97,656,250
In the given statement is:
Find the 12th term of the geometric sequence 2,10,50
What is Geometric Sequence?
A Geometric Sequence is a special type of sequence where the ratio of every two successive terms is a constant. This ratio is known as a common ratio of the geometric sequence.
Now, to find the 12th term of geometric sequence:
Formula of Geometric Sequence:
\(a_{n} =a_{1}r^n^-^1\)
a = first term of the geometricr = common ratio of the geometric sequence\(a_{n}\) = nth term\(a_{1}=2\\ \\\)
r = 10/2 =5
\(a_{12}=2(5)^1^2^-^1\\ \\a_{12}=2(5)^1^1\\\\\\a_{12}=2(48,828,125)\\ \\a_{12} = 97,656,250\)
Therefore, 12th term of the geometric sequence is 97,656,250
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a)while wages have increased, spending power has mostly remained the same since 2000
b) as wages go up, so does spending power
c) the spending power of men is less than the spending power of the overall population
d) the wages of women have increased faster than the wages of men
Based on the information, the answer is A). While wages have increased, spending power has mostly remained the same since 2000.
How to explain the informationThe fact that the cost of living has also increased, eating up much of the gains from wage growth. In addition, many Americans are now working multiple jobs, which can leave them with less time and energy to spend money on discretionary items.
According to the Bureau of Labor Statistics, the average hourly wage for all workers in the United States increased by 16.3% between 2000 and 2021. However, the Consumer Price Index (CPI), which measures the cost of a basket of goods and services, increased by 26.5% over the same period. This means that the purchasing power of the average worker has actually declined by 10.2% since 2000.
The rise of the gig economy has also contributed to the decline in spending power. Many Americans are now working multiple jobs, often in low-wage industries such as food service and retail.
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While wages have increased, spending power
a)has mostly remained the same since 2000
b) as wages go up, so does spending power
c) the spending power of men is less than the spending power of the overall population
d) the wages of women have increased faster than the wages of men
Which description of the transformation of z on the complex plane gives the quotient of 2 = 8(COS(30°) + i sin(30°)) and w = 2(cos(5°) + i sin(5°))?
scale z by a factor of 2 and rotate it 5 degrees clockwise
scale z by a factor of 1 and rotate it 5 degrees clockwise
scale z by a factor of 2 and rotate it 5 degrees counterclockwise
scale z by a factor of 1 and rotate it 5 degrees counterclockwise
The description of the transformation of z on the complex plane gives the quotient is B. scale z by a factor of 1 and rotate it 5 degrees clockwise.
What is a quotient?It should be noted that a quotient simply means the number that obtained when division of numbers takes place.
In this case, the description of the transformation of z on the complex plane gives the quotient of 2 = 8cos30° + i sin30° and w = 2cos5° + i sin5° is to scale z by a factor of 1 and rotate it 5 degrees clockwise.
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HELP PLEASE!!!!!! Anaya bought a sweater that was on sale. The sweater originally cost $34.50 but was purchased for $27.60. What percentage of the original price was the discount?
Answer: 80%. Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
To find the percentage, divide the sale cost by the original cost:
27.60/34.50
Let's multiply both sides by 10 to make the operation easier:
27.6/34.5 ( I eliminated the zero's because they kind of have no use) -->
276/345, now solve:
276/345 = 0.8
0.8 = 80%
The percentage is 80%.
Sphenathi and other matriculants plan to pass Bloemfontein at 07.25 to travel the above stated distance to Uptington. Determine (to the nearest km/h) the average speed at which they must travel to be in Uptington by 09:45.
Sphenathi and the other matriculants must travel at an average speed of approximately 107 km/h to reach Uptington by 09:45.
To determine the average speed at which Sphenathi and the other matriculants must travel to reach Uptington by 09:45, we need to calculate the time available for the journey and the distance between the two locations.
The time available is from 07:25 to 09:45, which is a total of 2 hours and 20 minutes. We need to convert this time to hours by dividing by 60:
2 hours + 20 minutes / 60 = 2.33 hours
Now, let's calculate the distance between Bloemfontein and Uptington. Suppose the distance is 'd' kilometers.
We can use the formula for average speed: average speed = distance / time
In this case, the average speed should be such that the distance divided by the time is equal to the average speed.
d / 2.33 = average speed
Now, let's assume that Sphenathi and the other matriculants must travel a distance of 250 kilometers to reach Uptington. We'll substitute this value into the equation:
250 / 2.33 = average speed
To find the average speed to the nearest km/h, we'll calculate the result:
average speed ≈ 107.3 km/h
Therefore, Sphenathi and the other matriculants must travel at an average speed of approximately 107 km/h to reach Uptington by 09:45.
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Given f (x) = 3 x minus 1 and g (x) = 2 x minus 3, for which value of x does g (x) = f (2)?
x = three-halves
x = 2
x = five-halves
x = 4
Answer:
X = there and halve
3(1/2)
Step-by-step explanation:
F(x) =3x -2
g(x )= 2x-3
F(2) = 3(2) - 2
= 6-2
= 4
So the value of x that can make g(x) = 4
4= 2x-3
7 = 2x
X= 7/2
X = 3 1/2
Answer:
x=4
Step-by-step explanation:
so I plugged in each answer to find which would make g(x)=f(2)
for f(2) you get f(2)= 3(2) -1
f(2)= 6-1 so f(2) is 5
using that plug in each answer into the G equation to get 5 out of it. i used 4
g(4)= 2(4) -3
g(4)= 8-3
g(4)=5
ta da the answer is x=4
hope this is helpful