how many prime numbers are there between 0 and 25
If male and female college students work an average of 15 hours per week during the school year and the standard deviation is 5.4 for male students and 2.3 for female students, what may we conclude?
Answer: the male sample is more spread than the female sample
Step-by-step explanation:
The mean is the same for both genres, but the standard deviation form males is bigger than the one for females.
This means that the data of the male students is more spread than the female data (so there are more male students that study more hours, but there also are more male students that study less hours).
So the general conclusion is that the male sample is more spread than the female sample
Find an equation for the nth term of the arithmetic sequence.
9, 11, 13, 15, ...
Answer Choices
A) an = 9 + 2(n - 1)
B) an = 9 + 2(n + 1)
C) an = 9 + 2
D) an = 9 + 2(n)
Find the 29th term of the following sequence. 21, 15, 9, 3, . . .
Answer:
The correct answer would be -147
Step-by-step explanation:
If 12 is replaced with 3 in the following set, what will happen to the value of the range?
28, 45, 12, 34, 36, 45, 19, 20
It will increase.
It will decrease.
It will stay the same.
Your correct answer is A: it will increase.
Hope this helps. :)
Camelle manages her soccer team. She needs to order 4 practice jerseys for each player. There are y players. How many total practice jerseys does she need to order?
Answer:
The required number of total practice jerseys does she need to order is '4y'.
Step-by-step explanation:
Given : Camelle manages her soccer team. She needs to order 4 practice jerseys for each player. There are y players.
To find : How many total practice jerseys does she need to order?
Solution :
Let the total practice jerseys does she need to order be 'x'.
According to question,
She needs to order 4 practice jerseys for each player.
Number of players are y.
So, Total jerseys she needs is
[tex]x=4\times y[/tex]
[tex]x=4y[/tex]
Therefore, The required number of total practice jerseys does she need to order is '4y'.
A box contains 3 cherry frozen treats and 2 grape frozen treats. Maggie takes a treat from the box without looking, gives it to her brother, and then selects another treat. What is the probability that her brother gets a grape treat and she gets a cherry treat?
Answer:
6/20 = 3/10
Step-by-step explanation:
Her brother gets the first treat. There are 2 grape treats out of 3+2 = 5 total; this is a probability of 2/5.
Maggie gets the second treat. There will still be 3 cherry treats left, but only 5-1 = 4 treats remaining; this is a probability of 3/4.
Together this gives us 2/5(3/4) = (2*3)/(5*4) = 6/20 = 3/10
Answer:
3/10 or 6/20
Step-by-step explanation:
Jeremy goes to the store where he buys 18 bananas. After two days, he notices that there are only 10 bananas that are left. Which equation below would Jeremy use to find the percent of bananas that he has left?
A. 10/18 = 100/x
B. 18/10 = x/100
C. 5/9 = x/100
D. 10/18 = x/55.5
A line and a plane are considered parallel if they have no points in common. True or False?
the number 0.4 can be written as 4/10 so it is a rational number
Answer: yes it's correct
Step-by-step explanation: yes it's correct
Ivan was given two data sets, one without an outlier and one with an outlier.
Data without an outlier: 108, 113, 105, 118, 124, 121, 109
Data with an outlier: 108, 113, 105, 118, 124, 121, 109, 61
How is the median affected by the outlier?
Answer:
Median is decreased by the outlier or Outlier made median lower.
Step-by-step explanation:
First we calculate median of the data without an outlier:
Data in Ascending or increasing order ,
105 , 108 , 109 , 113 , 118 , 121 , 124
Now there are 7 terms so
Median = [tex]\frac{7+1}{2}^{th}\:term[/tex] = 4th term = 113
Now we find median of the data with outlier:
Data in ascending or descending order,
61 , 105 , 108 , 109 , 113 , 118 , 121 , 124
here no of terms are 8.
So, Median = [tex]\frac{(\frac{8}{2})^{th}+(\frac{8}{2}+1)^{th}}{2}[/tex]
= [tex]\frac{4^{th}+5^{th}}{2}=\frac{109+113}{2}[/tex]
= 111
So, Median is decreased by the outlier or Outlier made median lower.
Which of the following are the coordinates of the vertex of y=-x^2+2x+1
what is the measure of C?
Solve each equation f over 28=24
Which statements are true?
Choose all answers that are correct.
A.
All quadrilaterals can be classified as either parallelograms or trapezoids.
B.
All rhombuses are parallelograms.
C.
Some trapezoids are parallelograms.
D.
Some parallelograms are squares.
Answer:
Step-by-step explanation:
B, C and D
What are the zeros of the polynomial function f(x) = x3 – 4x2 – 12x
If 8 identical blackboards are to be divided among 4 schools, how many divisions are possible? how many if each school must receive at least 1 black- board?
Can anyone please help me I will give you 13 points and make your answer the brainliest.Please help.
The true statements are ...
2. All squares are rectangles.
3. Not all parallelograms are rectangles.
_____
The attached diagram shows the relationships between various quadrilataral types. The line connecting a lower box to a higher box means "all of the lower box is a higher box." For example, all square are rectangles, and all rectangles are parallelograms.
However, it is typical for a higher box to have several different lower boxes. That is "a higher box may be any of the list of lower boxes or none of them" For example, a parallelogram may be a rhombus or a rectangle or neither.
Express the complex number in trigonometric form. 3
The complex number 3, in trig form, would be 3 cos 0 degrees. This is a ray from the center, right, along the x-axis, for a distance of 3 units.
Answer:
Step-by-step explanation:
3(cos(0)+isin(0))
Solve the equation x2 = 10.
Answer:
[tex]\large\boxed{x=-\sqrt{10}\ or\ x=\sqrt{10}}[/tex]
Step-by-step explanation:
[tex]x^2=10\iff x=\pm\sqrt{10}[/tex]
The solution of the equation is x = ±3. 162.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Parts of an Equation
There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators.
An equation can be formed without these as well, for example, 5 + 10 = 15. This is an arithmetic equation with no variables.
Given:
x² = 10
Now to solve the above equation we have to take the square root on both side, we get
√x² = √10
x= ±√10
x= ±3. 162 ( because root provides two values one is positive and other is negative)
Hence, the value of x is ±3. 162.
Learn more about equation here:
https://brainly.com/question/10413253
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A bus travels 36 miles in 45 minutes enter the number of miles the bus travels in 60 minutes at this rate
what is the least common denominator of the rational expressions below?
6/x^2+7x - 8/x^2+10x+21
a. x(x+7)(x+3)
b. x+7
c. x(x+7)^2(x+3)
d. x(x+3)
Explanation of finding the least common denominator of rational expressions.
The least common denominator of the rational expressions provided is option (d): x(x+3).
To find the LCD, first factor each denominator completely. Then, identify the unique factors and their highest powers. The LCD will be the product of these unique factors raised to their highest powers.
Given the information below, match the following items.
Given statement: If two angles add to 180°, then they are supplementary.
1.converse
2.inverse
3. contrapositive
If two angles are supplementary, then they add to 180°
If two angles do not add to 180°, then they are not supplementary. 3.contrapositive
If two angles are not supplementary, then they do not add to 180°.
Answer:
Converse- If two angles are supplementary, then they add to 180°
Inverse- If two angles do not add to 180°, then they are not supplementary.
Contrapositive- If two angles are not supplementary, then they do not add to 180°
Step-by-step explanation:
Divide 3x^2 -2x^2 -61x -20 by x -5
Of the members of a student choir, 60% are boys. If there are 21 boys in the choir, how many members does the choir have in total?
Suppose there are x number of members in all.
Now we are given that 60% of these are boys.
So number of members who are boys = 0.6x
We are also given that there are 21 boys in the choir.
So making an equation ,
[tex] 0.6x =21 [/tex]
dividing both sides by 0.6,
x= 35
So there are total 35 members in the choir.
To stay healthy, Kevin’s doctor says he should try to consume at most 2000 inequality to show the amount of calories Kevin should consume
the sum of two numbers is -12 one number is 3 less than twice the other what is the bigger number
Crystal charges a flat fee of $10 plus an additional $5 per hour to babysit given the situation what is the range
Answer:
perhaps $10 to $10,810
Step-by-step explanation:
We assume Crystal may be willing to babysit for a period of up to 3 months (90 days), so 90×24 = 2160 hours. Her hourly fee for that period will be ...
... (2160 hours) × ($5/hour) = $10,800
That amount added her $10 initial charge may represent the upper limit of her pay. The lower limit will be the $10 initial charge.
_____
Comment on the question
Since no upper limit on hours is given, we conclude the problem is not well-specified.
We can make a variety of different assumptions regarding the upper limit of babysitting time.
We might choose to consider this a daily charge, so the upper limit is $130 per day. We might consider that Crystal is willing to babysit while the child's parents are on a 2-week vacation. We might consider that Crystal is willing to babysit for the duration of her summer vacation from school (about 3 months). This is the assumption we use here.Find a ⋅ b. a = 4i - 4j, b = 4i + 5j
For this case we have the following vectors:
[tex]a = 4i - 4j\\b = 4i + 5j[/tex]
We must find the product point of both vectors.
To do this, we multiply component by component and add the results.
We have then:
[tex]a.b = (4) (4) + (-4) (5)\\a.b = 16 -20\\a.b = -4[/tex]
Answer:
The point product of both vectors is given by:
[tex]a.b = -4[/tex]
What is the diameter of a circle that has an area of 452.16 mm 2? 144 mm 12 mm 24 mm 6 mm
Answer:
the diameter is 24
Step-by-step explanation: