Answer:
d. Twenty-five cars are randomly selected with the new transmission and 25 with the old transmission.
Step-by-step explanation:
A hypothesis test on the difference between the means must satisfy the following conditions
1) the samples must be randomly selected
2) each sample must have a known standard deviation
3) the samples must be independent
4) the samples must be from normal distribution
Hence only part d gives the right answer.
four causes of solar eclips
Answer:
A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface
does the graph represent a function
QUICK PLZZZ!! No picture link or I’ll report u !
the second option I highly think this is correct but I'm so sorry if not!!! I even did research to see if I was right
what is the circumference?
Answer:
Circumference is the area around the whole circle
Step-by-step explanation:
Answer:
The circumference is 50.2
Step-by-step explanation
I worked it out by
C = 2 * π *
Aiden wants to make 1/2 of a batch of muffins the recipe calls for 2/3 cup of milk for whole batch how much milk should aiden use?
Answer:
Quantity of milk Aiden needs = 1/3 cup of milk
Step-by-step explanation:
Given:
Aiden wants to make muffins = 1/2 batch
Full batch muffins need = 2/3 cup of milk
Find:
Quantity of milk Aiden needs
Computation:
Quantity of milk Aiden needs = Number of batch Aiden make x Amount of milk need for a batch
Quantity of milk Aiden needs = [1/2] x [2/3]
Quantity of milk Aiden needs = 1/3 cup of milk
How do I solve
tan x= 3/5
Answer:
30.96375653
Step-by-step explanation:
if using a calculator, type in;
shift tan (3/5)
so basically shift tan (0.6)
bracket is important
if writing;
tan^-1 (0.6) = 30.96375653
Alyana's and Stephanie's combined yearly salaries are $20,615. Alyana makes 4/7 of their combined yearly salaries. How much does Stephanie make in dollars?
Answer:
$8,835
Step-by-step explanation:
Multiply the total ($20,615) by 3/7 to get your answer.
The domain of the function f ( x ) = 45/2 x − 35 is all real numbers except for... ____________
Answer
Hi!, I do not have any idea.
Thanks
Step-by-step explanation:
A group consisting of 10 children an adult went to a movie theater children tickets cost 5 each and adults tickets cost 8 each and the total cost for 10 people was 62.how much children were in the group
9514 1404 393
Answer:
6 children
Step-by-step explanation:
If all of the group were adults, the total cost of tickets would be 8×$10 = $80. The actual cost was $80 -62 = $18 less than that. Since each children's ticket saves $3 off the cost of an adult ticket, there were $18/$3 = 6 children's tickets.
There were 6 children in the group.
_____
If you want an equation, you can let c represent the number of children. Then the cost of tickets is ...
8(10 -c) +5c = 62 . . . . 10-c is the number of adults
-3c = -18 . . . . . . . subtract 80
c = -18/-3 = 6 . . . divide by 3
There are 32 founding members of an organization. The function y 3x + 32 can be used to determine the number of members in the organization
after 3 months.
Answer:
https://studyandanswers.com/mathematics/question22956714
Step-by-step explanation:
I am not the bot btw. This is the only way I can help you. If you don't like it well to bad
The area of a rectangle is 200 square feet. Find its length if its width is 10 feet.
Answer:
20
Step-by-step explanation:
In area you have to multiply so 10 x ? = 200
10 x 20 = 200
The volume of a right cylinder is 2,000π cubic feet, and the height is 20 feet. What is the length of the radius in feet?
Answer:
r = 10 ft
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityGeometry
Volume of a Cylinder Formula: V = πr²h
r is radiush is heightStep-by-step explanation:
Step 1: Define
Identify variables
Volume V = 2000π ft³
Height h = 20 ft
Radius r = unknown
Step 2: Solve for r
Substitute in variables [Volume of a Right Cylinder Formula]: 2000π ft³ = πr²(20 ft)[Division Property of Equality] Isolate r term: 100 ft² = r²Rewrite: r² = 100 ft²[Equality Property] Square root both sides: r = 10 ftAnswer:10 ft
Step-by-step explanation:
What annual rate of interest would you have to earn on an investment of $5500 to ensure receiving $434.50 interest after one year?
PLEASE HELPPPP
pls answer me this all question correctly pls I beg you pls friends pls pls pls pls pls pls pls pls
Answer:
[tex]a. \: 28[/tex]
[tex]b. \: 5[/tex]
Step-by-step explanation:
[tex]a. \: 88 \div 3 \frac{1}{7} [/tex]
[tex]88 \div \frac{22}{7} [/tex]
Multiply the numerator by the reciprocal of the denominator.
[tex]88 \div \frac{7}{22} [/tex]
[tex]4 \times 7[/tex]
[tex]28[/tex]
[tex]b. \: 49 \frac{2}{9} \div 9 \frac{4}{9} [/tex]
[tex] \frac{425}{9} \div \frac{85}{9} [/tex]
Multiply the numerator by the reciprocal of the denominator.
[tex] \frac{425}{9} \times \frac{9}{85} [/tex]
[tex]5[/tex]
Hope it is helpful...Pls help ASAP !!!!!!!!
Answer:
C I got that
shdjdhfbfhfkdnfhfhfhfbf it wants me to do 20 characters long
30 POINTS!!!!! I NEED IT NOW!!!!!!Find the maximun, minimum,range,medium,mean,mode and the other stuff on the picture if you can if not its ok.
Answer:
34
Step-by-step explanation:
n is an integer with -5 <2n< 6
Write down all the values of n
Answer:
it is -2,-1,0,1,2
I’ll give you five Stars right answer only
Answer:
58
Step-by-step explanation:
i think the answer is 58 please give brainliest
Answer:
(a) 18.5ft
(b) 388.5 ft²
Step-by-step explanation:
(a)
She has 79ft of fence = the perimeter will be 79.
Perimeter of a rectangle = 2(length) +2(width)
79 = 2(21)+2(width)
2(width) = 79 - 42
width = 37/2
width = 18.5ft
(b)
Area of a rectangle = (length)(width) = (21)(18.5) = 388.5 ft²
Which set of data has the smallest difference between the mean and the median?
O A 13, 42, 17, 26, 38
OB. 28, 7, 36, 8, 17
OC 14, 29, 38, 7, 13
OD 23, 36, 25, 38, 30
Answer:
D 23, 36, 25, 38, 30
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all it's values divided by the number of values.
Median of a data-set:
The median of a data-set is the value that separates the lower 50% from the upper 50% on the ordered set.
If the cardinality n is odd, as in this case, the median is the element at the position (n+1)/2. Since in this case, n = 5, the median is the 3rd element in the ordered set.
A 13, 42, 17, 26, 38
Ordered set: 13, 17, 26, 38, 42
Median: 26
Mean: (13+17+26+38+42)/5 = 27.2
Difference: 27.2 - 26 = 1.2
B. 28, 7, 36, 8, 17
Ordered set: 7, 8, 17, 28, 36
Median: 17
Mean: (7+8+17+28+36)/5 = 19.2
Difference: 19.2 - 17 = 2.2
C 14, 29, 38, 7, 13
Ordered set: 7, 13, 14, 29, 38
Median: 14
Mean: (7+13+14+29+38)/5 = 20.2
Difference: 20.2 - 14 = 6.2
D 23, 36, 25, 38, 30
Ordered set: 23, 25, 30, 36, 38
Median: 30
Mean: (23+25+30+36+38)/5 = 30.4
Difference: 30.4 - 30 = 0.4
Option d has the smallest difference.
3.
a box has 10 red cubes, 5 blue cubes
and 2 green cubes. If a cube is
randomly picked from the box, which
coloured cube is:
(a) least likely to be picked?
(b) most likely to be picked?
Answer:
The Answer is is option B.
A local business had various advertising campaigns. It had television ads numbered 1,2,3,4,5,6, newspaper and magazine ads numbered 1,2,3,4,5, and social media ads labeled 1,2. If a single advertisement campaign is picked at random, what is the probability that the advertisement is a social media ad AND has an odd number?
Provide the final answer as a fraction.
Answer:
1/2
Step-by-step explanation:
The probability that the advertisement is a social media ad and has an odd number is 1/13.
What is probability?Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.
Given that, A local business had various advertising campaigns. It had television ads numbered 1,2,3,4,5,6, newspaper and magazine ads numbered 1,2,3,4,5, and social media ads labeled 1,2.
We need to find If a single advertisement campaign is picked at random, what is the probability that the advertisement is a social media ad AND has an odd number,
Probability = favorable outcomes / possible outcomes
Number of social media ads with an odd number = 1
Total number of ads = 13
We know that,
P(that the advertisement is a social media ad AND has an odd number)
= 1/13.
Hence, the probability that the advertisement is a social media ad and has an odd number is 1/13
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In the French Honor Society, there are 12 girls and 8 boys.
This summer, they are taking a trip to France and only 8
people can go. Find the probability that each of the
following groups will be randomly selected to go on the trip
to France.
a) All girls
b) All boys
c) 4 girls and 4 boys
d) 3 girls and 5 boys
e) At least one boy
f) At least two girls
Answer:
a) All girls - 12C8 /20 C8
b) All boys - 8C8/20C8
c) 4 girls and 4 boys - 8C4 * 12C4/20 C8
d) 3 girls and 5 boys - 8C5 * 12C3/20 C8
e) At least one boy - 1 - 12C8 /20 C8
f) At least two girls 1 - (1 - 8C8 /20 C8)
Step-by-step explanation:
Given -
Total girls - 12
Total boys - 8
a) All girls - 12C8 /20 C8
b) All boys - 8C8/20C8
c) 4 girls and 4 boys - 8C4 * 12C4/20 C8
d) 3 girls and 5 boys - 8C5 * 12C3/20 C8
e) At least one boy - 1 - 12C8 /20 C8
f) At least two girls 1 - (1 - 8C8 /20 C8)
Identify the distance between points (3,7,1) and (9,6,7), and identify the midpoint of the segment for which these are the endpoints. Round to the nearest tenth, if necessary.
Step-by-step explanation:
[tex]range = (3,7,1) - (9,6,7) \\ = ( - 6,1, - 6) \\ distance = \sqrt{ {x}^{2} + {y}^{2} + {z}^{2} } \\ = \sqrt{ {( - 6)}^{2} + {1}^{2} + {( - 6)}^{2} } \\ = \sqrt{73} \\ = 8.5 \: units[/tex]
The distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).
What is Distance?The length along a line or line segment between two points on the line or line segment.
Distance=√(x₂-x₁)²+(y₂-y₁)²
We need to find the distance between points (3,7,1) and (9,6,7).
Distance=√(9-3)²+(6-7)²+(7-1)²
=√6²+(-1)²+(6)²
=√36+1+36
=√73
=8.54 units
So the distance between the two points is approximately 8.5 units.
To find the midpoint of the segment between the two points, we use the midpoint formula:
midpoint = ((x₁+x₂)/2, (y₁+y₂)/2, (z₁+z₂)/2)
Using the given points, we have:
midpoint = ((3+9)/2, (7+6)/2, (1+7)/2)
= (6, 6.5, 4)
So the midpoint of the segment is (6, 6.5, 4).
Hence, the distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).
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Petra is making necklaces to sell at a craft fair. The hardware for each necklace costs $3.75,
and each bead costs $0.50. The number of beads Petra needs depends on the design she
chooses. Which expression gives the total cost to make 30 necklaces with b beads?
30 (4.25b)
30 (3.75b + 0.5)
30 (0.55 +3.75)
30 (0.5b) + 3.75
suppose that a population parameter is 0.2, and many samples are taken from the population. As the size of each sample increases, the mean of the sample proportions would approach which of the following values?
A. 0.1
B. 0.3
C. 0.4
D. 0.2
Answer:
D 0.2
Step-by-step explanation:
YES THIS IS RIGHT
The required, mean of the sample proportions would approach is 0.2.
What is a normal distribution?Normal distributions can be altered to standard normal distributions by the formula:
Z = (X - μ)/σ
As the size of each sample increases, the mean of the sample proportions would approach the population parameter, which in this case is 0.2. This is known as the central limit theorem.
Therefore, the answer is D. 0.2.
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Which of the following is the inverse relation of the set?
{(3, 1), (4, 2), (5, 3), (6, 4)} ?
A)
{(3, 1), (4, 2), (5, 3), (6, 4)}
B)
{(2, 4), (3, 3), (5, 4), (6, 1)}
C)
{(1, 3), (2, 4), (3, 5), (4, 6)}
D)
{(2, 1), (4, 3), (5, 3), (6, 4)}
Answer:
c number because even or odd numbers are equal i hope help you
please mark me brainlist
Answer:
C is the Correct answer.
Step-by-step explanation:
Why 117+3 = 5! is correct
Answer:
5!= 5×4×3×2×1
117+3=120
5×4×3×2×1= 120
therefore 117+3=5! is correct
The statement 117+3 = 5! is correct because;
The left hand side and right hand side give the same solution of 120.
We want to find out why 117 + 3 = 5! is correct.
Let us first find the left hand side of the equation;
117 + 3 = 120
Now, for the right hand side, 5! simply means 5 factorial.
Factorial of a number is a term used in maths to denote the product of all
positive integers less than or equal to that number. For example; n!. That is
factorial and it means the product of all positive integers below n.
Let's apply the concept of factorial to 5!.
All positive integers less than or equal to 5 are; 5, 4 , 3, 2, 1
Thus; 5! = 5 × 4 × 3 × 2 × 1 = 120
This 5! = 120 and it is the same as 117 + 3 = 120. Thus the given statement in the question is true.
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2+9n=72
how do you find what n equals?
Answer:
the correct answer is 7.78
Identify the transformation that was applied to this letter.
HELPoo
1. A polygon is convex if all the diagonals are found in the___ of a polygon.
A. exterior
B. interior
C. equilateral
D. equiangular
2. A regular polygon is both equiangular and____.
A. equal
B. equivalent
C. equilateral
D. concave
A polygon is convex if all the diagonals are found in the interior of a polygon.
A regular polygon is both equiangular and equilateral
Option B and C
What is Polygon?A polygon is simply defined as a shape, A polygon is a flat-surfaced two-dimensional shape that has straight sides.
In conclusion
A polygon is convex if all the diagonals are found in the interior of a polygon.
A regular polygon is both equiangular and equilateral
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