Answer:
D. 0.65
Step-by-step explanation:
0.05 x 5=0.25
0.01 x 5=0.05
0.07 x 5=0.35
0.25+0.05+0.35=0.65
they all must pay 0.65 each
Answer:
0.65
Step-by-step explanation:
pls help me i will give brainiest
Answer:
I think The last.
Can I maybe the brainliest.
Have a nice day
a total of 35% of americans smoke cigarettes, 15% smoke cigars and 7% smoke both cigarettes and cigars. a. what percentage smoke something (cigars, cigarettes or both)? b. what percentage smoke neither cigars nor cigarettes? c. what percentage smoke cigars but not cigarettes? d. what is the conditional probability that a randomly selected person smokes cigarettes given that he smokes cigars? g
The solution of each part of the question is given below:
a. Let C be the event that a person smokes cigars, and let S be the event that a person smokes cigarettes. The percentage of Americans who smoke either cigars, cigarettes, or both can be calculated as P(C U S), where U represents the union of two events. From the given information, P(C) = 15% and P(S) = 35%. The probability that a person smokes both cigars and cigarettes is 7%, so P(C ∩ S) = 7%.
P(C U S) = P(C) + P(S) - P(C ∩ S)
P(C U S) = 15% + 35% - 7% = 43%
So, 43% of Americans smoke either cigars, cigarettes, or both.
b. The percentage of Americans who smoke neither cigars nor cigarettes can be calculated as P(C' ∩ S'), where C' represents the complement of event C (not smoking cigars) and S' represents the complement of event S (not smoking cigarettes).
P(C' ∩ S') = 100% - P(C U S)
P(C' ∩ S') = 100% - 43% = 57%
So, 57% of Americans smoke neither cigars nor cigarettes.
c. The percentage of Americans who smoke cigars but not cigarettes can be calculated as P(C ∩ S').
P(C ∩ S') = P(C) - P(C ∩ S)
P(C ∩ S') = 15% - 7% = 8%
So, 8% of Americans smoke cigars but not cigarettes.
d. The conditional probability that a person smokes cigarettes given that he smokes cigars can be calculated as P(S | C), where S represents the event that a person smokes cigarettes and C represents the event that a person smokes cigars.
P(S | C) = P(S ∩ C) / P(C)
P(S | C) = 7% / 15% = 0.47
So, the conditional probability that a randomly selected person smokes cigarettes given that he smokes cigars is 0.47, or 47%.
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A study found that 7 out of 10 participates could curl their tongue. If there are 200 total, how many of them are expected to be able to curl their tongue?
Answer:
140 people
Step-by-step explanation:
We can make two ratios...
7:10
x:200
We can since 10*20 = 200, we can multiply 7 by 20 to get x.
x=7*20=140
140 people are expected to be able to curl their tongue
What is the simplest form of this expression? (x 7)(3x − 8) a. 3x2 2x − 15 b. 3x2 29x − 1 c. 3x2 − 29x − 56 d. 3x2 13x – 56
Mary is making a recipe that calls for 3/4 teaspoon of cinnamon. Her only
measuring spoon holds 4/8 teaspoon. How many times will she need to fill
her measuring spoon to get enough cinnamon for the recipe?
Answer:
She will need to fill her spoon twice, once adding in the full amount, and the second adding half the amount.
3/4 ÷ 4/8
=3/4 * 2/1
=6/4
=1.5
So, that much amount would be needed o be added to the recipe during the two times
On level ground, the base of a tree is 20 feet from the bottom of a 54-foot flagpole. The tree is shorter than the pole, as shown in the figure.
Based on the given information and calculations, the conclusion is that the height of the tree is approximately 50.16 feet.
Based on the figure, we can see that we have a right triangle with one leg being the distance from the base of the tree to the pole, another leg being the height of the tree, and the hypotenuse being the length of the pole.
Using the Pythagorean theorem, we can find the height of the tree:
\(a^2 + b^2 = c^2\)
where a is the distance from the base of the tree to the pole (20 feet), b is the height of the tree (unknown), and c is the length of the pole (54 feet).
Plugging in the values:
\(20^2 + b^2 = 54^2\)
\(400 + b^2 = 2916\)
\(b^2 = 2516\)
b ≈ 50.16
Therefore, the height of the tree is approximately 50.16 feet.
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Researcher Requires An Estimate For The Number Of Trout In A Lake. To This End, She Captures 50 Trout, Marks Each Fish, And Releases Them Into The Lake. Two Days Later She Returns To The Lake And Captures 80 Trout, Of Which 16 Are Marked. (A) Suppose That The Lake Contains N Trout. Find The Probability L(N) That 16 Trout Are Marked In A Sample Of 80. This problem has been solved!
Therefore, Assuming that approximately 20% of the lake's trout population was marked, we can estimate that the lake contains approximately 250 trout.
To find the probability L(N) that 16 trout are marked in a sample of 80, we need to use the hypergeometric distribution formula. The formula is P(X=k) = [C(M,k) * C(N-M,n-k)] / C(N,n), where M is the total number of trout in the lake, N is the number of trout in the sample (80), k is the number of marked trout in the sample (16), and n is the sample size (50). Plugging in the values, we get P(X=16) = [C(M,16) * C(M-50,34)] / C(M,80). We don't know the exact value of N, but we can estimate it using the fact that 16 out of 80 trout were marked, which means that approximately 20% of the lake's trout population was marked. Therefore, we can estimate that the lake contains approximately 250 trout (i.e., 50 / 0.2). Writing the main answer in 2 lines: The probability L(N) that 16 trout are marked in a sample of 80 can be estimated using the hypergeometric distribution formula.
Therefore, Assuming that approximately 20% of the lake's trout population was marked, we can estimate that the lake contains approximately 250 trout.
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Six years from now, Olivia will be three times older than she is today. How old is she?
4
5
2
3
and
The correct order of steps in solving a word problem is:
Determine variables for unknowns, create an equation, solve for the unknown variable, check that the left side of the equation equals the right side
Create an equation, determine a variable for the unknown, solve for the unknown, check that left side equals right side
Determine a variable for the unknown, create an equation, check that left side equals right side, solve for the unknown variable
Determine the variable for the unknown, create an equation, solve for the unknown
Answer:
She is three years old.
Step-by-step explanation:
If she is 3, then six years from now she will be nine.
3 * 3 = 9
Determine the ratio of the geometric sequence: 1/16, -1/4, 1,...
Answer:
The common ratio of the given sequence is - 4-------------------------------
Given sequence:
1/16, - 1/4, 1, ...Find the common ratio, the ratio of two consecutive terms:
r = 1 ÷ (- 1/4) = 1 × (- 4) = - 4or
r = - 1/4 ÷ 1/16 = - 1/4 × 16 = - 4A counter in Lamar's kitchen is 1 yard wide and 2 yards long. Lamar wants to replace the counter with a granite countertop, which would cost $204.63 per square yard. How much would the granite countertop cost?
Answer:
Step-by-step explanation:
Comment
Find the number of square yards
Area = L * w
L = 2
w = 1
Area = 2 * 1
Area = 2
Now for the counter top
1 sq yard costs 204.63
2 sq yards cost 2 * 204.63
2 sq yards cost 409.26
Answer: 409.26
Lena bought 14 yards of wire. How many inches of wire did she buy? ( 1 yard =36 inches)
Answer:
504 inches
Step-by-step explanation:
Multiply 14 by 36 and get your answer
By what degree might a variable without a clear operational definition affect statistics performed on it?
Results could be totally different.
grades are an example of a sample.
Samples are chosen at random from the population.
A variable without a clear operational definition can greatly impact the accuracy and reliability of statistics performed on it. To ensure accurate and meaningful results, it is important to have clear, well-defined variables in any research study.
The lack of a clear definition can lead to inconsistencies in data collection, making it difficult to accurately interpret and analyze the results.
Step 1: When a variable has no clear operational definition, researchers may measure or interpret it in different ways, leading to inconsistencies in data collection.
Step 2: These inconsistencies can affect the reliability and validity of the collected data, which in turn impacts the accuracy of the statistical analysis performed.
Step 3: As a result, the findings from such analyses may not accurately represent the true relationships or patterns within the sample or the population, leading to incorrect conclusions.
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what are three reasons why it is not possible to define a simple analytical scheme that can be applied to all types of evidence?
The complexity, reliability, and context of the evidence collected are some of the reasons why it is not possible to define a simple analytical scheme that can be applied to all types of evidence.
There are several reasons why it is not possible to define a simple analytical scheme that can be applied to all types of evidence.
Firstly, different types of evidence require different analytical techniques, as they have varying degrees of complexity. For example, analyzing DNA evidence requires a different set of analytical tools compared to analyzing physical evidence like fingerprints or footprints.
Secondly, the reliability of the evidence also plays a significant role in the analytical scheme. Some types of evidence may be more subjective than others, and the interpretation of the results may be open to bias or misinterpretation. In such cases, a simple analytical scheme may not provide accurate or reliable results.
Finally, the context in which the evidence is collected also plays a crucial role in determining the analytical scheme. The location, timing, and circumstances of the evidence collection may affect the reliability and accuracy of the results. Therefore, a simple analytical scheme may not be able to accommodate all the variables and nuances of the evidence collected in different contexts.
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I need some help on this question. please give some help! I will mark you as branliest!
Step-by-step explanation:
so where's the question??
how to solve 19= -37 + 8x
Answer:
19 = -37 + 8x
-8x= -37 -19
-8x = -56
x= 7
shelly sews a square blanket that has an area of 144 square feet. it has 36 square blocks, each the same size. what is the approximate length of each side of a block? (1 point)
The side of the square of each block = 2 feet
Given,
Shelly sews a square blanket that has an area of 144 square feet.
and, it has 36 square blocks, each the same size.
To find the approximate length of each side of a block
Now, According to the question:
36 square blocks of same size. We need to find the area of each square block. so we divide = area / square blocks
= 144/ 36
= 4
The area of each square = 4 square feet
We know that
Area of square = side ^2
Side ^2 = 4
side = \(\sqrt{4}\)
Side = 2
Hence, The side of the square of each block = 2 feet
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Someone please please help me
(7) when the radius of the circle is 9 mm, the area of the circle is 254.34 mm².
(8) when the radius of the circle is 14 cm, the area of the circle is; 615.44 cm².
(9) when the radius of the circle is 10 in, the area of the circle is; 314 in².
(10) when the diameter of the circle is 3 in, the area of the circle is; 7.065 in².
(11) when the diameter of the circle is 2 cm, the area of the circle is; 3.14 cm².
(12) when the diameter of the circle is 1.5 ft, the area of the circle is; 1.766 ft².
What is the area of the circle?The area of the circle is calculated by applying the following formula.
A = πr² or πd²/4
where;
r is the radius of the circled is the diameter of the circle(7) when the radius of the circle is 9 mm, the area of the circle is;
A = π(9 mm)²
A = 254.34 mm²
(8) when the radius of the circle is 14 cm, the area of the circle is;
A = π(14 cm)²
A = 615.44 cm²
(9) when the radius of the circle is 10 in, the area of the circle is;
A = π(10 in)²
A = 314 in²
(10) when the diameter of the circle is 3 in, the area of the circle is;
A = π(3 in)²/4
A = 7.065 in²
(11) when the diameter of the circle is 2 cm, the area of the circle is;
A = π(2 cm)²/4
A = 3.14 cm²
(12) when the diameter of the circle is 1.5 ft, the area of the circle is;
A = π(1.5 ft)²/4
A = 1.766 ft²
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Can someone help me pls and determine if this is no solution, one solution, or infinte solutions
−2x−6y=−4
2x+6y=4
ILl give brainly
Answer:
There is one solution, x = 2 - 3y
Step-by-step explanation:
What is the value of x in this figure?
Enter your answer in the box.
X
1140
xo
Answer:
114 degrees
Step-by-step explanation:
Because they are vertically opposite angles
Answer:
Step-by-step explanation:
Both angles are opposite of each other, therefore, x = 114
How to solve right triangles with no sides or angles given.
Keisha runs 8 miles in 84 minutes. At the same rate, how many minutes would she take to run 6 miles?
Answer: 63 minutes
Step-by-step explanation:
Use proportions:
8/84 = 6/x
Cross multiply to get:
8x = 504
Simplify by dividing by 8 on both sides.
x = 63.
Graph the inequality
-9 < y + 5x < 14
Answer:
Step-by-step explanation:
Please show work, I have no idea how to do this
Answer:
161 Remainder 4
Step-by-step explanation:
trust me on this
Answer:
_
161.2 BUT if with remainder it is 161 with a remainder of 4
Step-by-step explanation:
By the way the 2 is a repeating number so make sure to add that line at the top.
someone please help me
Answer:
A. 20ft
Step-by-step explanation:
Answer:
d. 98.5
Step-by-step explanation:
Triangles:
5 x 4 = 20/2 = 10
Circle:
5² x 3.14 = 78.5
Add both of them 98.5
I don’t understand 15 through 18
Answer:
Step-by-step explanation:
15. True
16. False
17. True
18. True
Answer:
15 )true because they are opposite angles.
16) false 2 and 4 are opposite angles so should be the same value.
17 true ) because angle 4+1=180.
18 true) because the two angles make a 180 degree.
Patrick is excited to attend his son’s soccer game tomorrow
evening, but he also needs to ensure his daughter arrives at her
coding class on time. Patrick is debating whether taking the train
or his
Personal car would be the best option to manage both tasks efficiently. While the train is a reliable mode of transportation, it may have fixed schedules that might not align perfectly with Patrick's needs.
On the other hand, using his personal car provides more flexibility and allows him to tailor the departure time according to his daughter's coding class schedule.
If Patrick decides to take the train, he would need to check the train schedule to see if there are convenient departure and arrival times for both the soccer game and the coding class. This option would require planning and coordination to ensure he arrives at the game on time and can pick up his daughter afterward.
Using his personal car gives Patrick the freedom to leave at a time that accommodates both the soccer game and the coding class. He can drop off his daughter at her coding class, attend the soccer game, and then pick her up afterward without being restricted by train schedules.
Considering the circumstances, Patrick might find it more convenient to use his personal car to manage both tasks effectively and ensure he can attend his son's soccer game while also ensuring his daughter arrives at her coding class on time.
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please give me the answer nothing else
Answer:
12.5
Step-by-step explanation:
12x6 is 12 + 5 meters = 12.5m
A plane flies 1.7 hours at 140 mph on a bearing of 10 degrees. It then turns and flies 9.6 hours at the same speed on a bearing of 100 degrees. How far is the plane from its starting point?
The starting point is 1,365 miles .
Given :
→ initial time of plane = 1.7 hours
→ initial speed = 140 mph
→ final time of plane = 9.6 hours
→ final speed = same = 140 mph
The initial displacement of the plane is :
distance = speed × time
= 1.7 × 140
= 238 miles
The final displacement of the plane is :
distance = 9.6 × 140
= 1,344 miles
The angles between initial and final displacement is :
100° - 10 ° = 90 °
The distance of the plane from its starting point is calculated as follows
d = \(\sqrt{238^{2}+ 1344^{2} }\)
d = \(\sqrt{56644 + 1806336}\)
= \(\sqrt{1862980}\)
= 1364.9 miles ≈ 1,365 miles
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kiara made a square baby blanket. She decided to add 1 foot of material to one side, then cut 4 inches of material off from an adjacent side. The area of the reulsting blancket is 960 square inches. Find the area of the original blanket
Answer:
784 in²Step-by-step explanation:
Let the original side is x.
1 foot = 12 inches
New sides of a rectangle are:
x + 12 and x - 4The area of rectangle is:
(x + 12)(x - 4) = 960Solve for x:
x² + 8x - 48 = 960x² + 2*4*x + 16 - 64 = 960(x + 4)² = 1024 x + 4 = 32x = 28Area of the original blanket:
A = 28² = 784 in²There are 100 students in the sixth grade. The ratio of boys to girls is 2:3. How many more girls than boys are in the sixth grade?
Answer: I Think you will make 100 time 2 divide 3
Step-by-step explanation:
i'm not sure, have a nice day