Question 7. Ezequiel's Biology marks are 8.3, 6.8 and 9.4 out of 10. His final grade in Biology is the mean of these three marks a Calculate Ezequiel's final grade in Biology. Ezequiel wrote the three marks correct to the nearest unit to find his final grade in Biology.
Answer:
Ezequiel's final grade is 8
Step-by-step explanation:
The average (mean) of Ezequiel's grade is:
\(\frac{(8.3+6.8+9.4)}{3} \approx 8.16666\)
which rounded to the nearest unit is 8.
Answer:
It would be 8 :)
Step-by-step explanation:
In ΔFGH, the measure of ∠H=90°, FG = 94 feet, and HF = 73 feet. Find the measure of ∠G to the nearest degree.
Answer:
51
Step-by-step explanation:
Find the area and perimeter of the original planned patio and the new planned patio? help me please
Answer:
Original Patio:
-perimeter - 36 feet
-area - 80 square feet
New Patio:
-perimeter - 40 feet
-area - 96 square feet
me ayudan de nuervo porfavor
A study of black bears in the Adirondacks reveals that their population can be represented by the function , where is the number of years since the study began. Write a function that models the monthly growth rate (to the nearest hundredth of a percent) of the black bear population
Answer:
\(\mathbf{ P(t) = 3500 (1.}00206)^{12t}\)
Step-by-step explanation:
The missing value of the given function is:
\(P(t) = 3500 (1.025)^t\)
where
t = no. of years since study began
∴
\(P(t) = 3500 (1+0.025)^t\)
Per year, the function can be written as:
\(P(t) = 3500 (1+\dfrac{25}{1000})^t\)
For monthly growth rate m = 12
\(P(t) = 3500 (1+\dfrac{25}{1000(m)})^{mt}\)
\(P(t) = 3500 (1+\dfrac{25}{1000(12)})^{12t}\)
\(P(t) = 3500 (1+\dfrac{25}{12000})^{12t}\)
\(P(t) = 3500 (1+0.00206)^{12t}\)
\(\mathbf{ P(t) = 3500 (1.}00206)^{12t}\)
how many phone numbers can be made if all the digits (that is, 10 digits) need to be lled in and any single digit number (0-9) can be used for any digit?
There are 10,000,000,000 unique phone numbers that can be made with 10 digits using any single digit number (0-9) for each digit using combinations.
To determine how many phone numbers can be made with 10 digits, where any single digit number (0-9) can be used for any digit, follow these steps:
1. Understand that there are 10 possible digits (0-9) for each digit in the phone number.
2. Since there are 10 digits in the phone number, you need to calculate the total number of combinations by multiplying the number of possibilities for each digit.
To calculate this, simply raise the number of possible digits (10) to the power of the number of digits in the phone number (10):
10^10 = 10,000,000,000
So, there are 10,000,000,000 unique phone numbers that can be made with 10 digits using any single digit number (0-9) for each digit.
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2x+20 3x-15 solve for x=?
Answer:
X = 35
Step-by-step explanation:
Since the line is crossing two parallel lines the measurements are equal then you solve for X.
2X + 20 = 3X - 15
-2X -2X
20 = X - 15
+15 +15
35 = X
Answer:
x=35
Step-by-step explanation:
The expressions are corresponding angles which are congruent.
Set the two equations equal to each other.
2x+20=3x-15
Add and subtract like terms
35=1x
Divide:
35/1=35
X=35
Hope this helps! :)
Correct me if I'm wrong!
HELP ME ASAP
Which of the following articles would most benefit from a problem and solution organization pattern?
An article explaining your ideas on how to best rescue endangered loggerhead turtle eggs
An article comparing the loggerhead turtle rescue efforts on different beaches
An article discussing the life span of the loggerhead turtle
An article explaining why the loggerhead turtle is an endangered species
Answer:
An article explaining your ideas on how to best rescue endangered loggerhead turtle eggs
Step-by-step explanation:
In the problem and solution organization pattern, it is all about the ability to determine the problems affecting the organisation as well as proffer solutions on how to solve those problems. This would then lead to minimizing cost and maximizing profits. The example above which is about ideas on how to rescue endangered loggerhead turtle eggs is following same pattern.
Prove claim by Mathematical Induction:
(f) Let x \in{R}_{>-1} . Prove that \forall n \in{N}(1+x)^{n} ≥ 1+n x
For all x in R>-1 and n in N, (1+x)^n ≥ 1+nx.
To prove the claim by mathematical induction that for all x in the set of real numbers greater than -1 and for all n in the set of natural numbers, (1+x)^n ≥ 1+nx, we will follow the standard approach of mathematical induction.
We will prove the claim (1+x)^n ≥ 1+nx for all n in the set of natural numbers by mathematical induction.
Base case (n = 1):
When n = 1, the claim becomes (1+x)^1 ≥ 1+x, which is true as it simplifies to 1+x ≥ 1+x.
Inductive step:
Assume that the claim holds for some arbitrary positive integer k, i.e., (1+x)^k ≥ 1+kx.
We need to show that the claim holds for the next positive integer k+1, i.e., (1+x)^(k+1) ≥ 1+(k+1)x.
Starting with the left-hand side, we have (1+x)^(k+1) = (1+x)^k * (1+x).
By the induction hypothesis, we know that (1+x)^k ≥ 1+kx. Multiplying both sides by (1+x), we get (1+x)^k * (1+x) ≥ (1+kx) * (1+x).
Expanding the right-hand side, we have (1+kx) * (1+x) = 1+kx+x+kx^2 = 1+(k+1)x+kx^2.
Since x > -1, we have x^2 > x, which means kx^2 > kx. Therefore, 1+(k+1)x+kx^2 > 1+(k+1)x.
Combining the above results, we have (1+x)^(k+1) ≥ (1+kx) * (1+x) ≥ 1+(k+1)x.
This completes the inductive step.
By the principle of mathematical induction, we have proved that for all x in the set of real numbers greater than -1 and for all n in the set of natural numbers, (1+x)^n ≥ 1+nx.
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Please help I’ll give brainliest
Answer:
25 chords
Step-by-step explanation:
First, set up the ratio 40:8.
Now, make a proportion.
\(\frac{40}{8}\)=\(\frac{x}{5}\)
This proportion will give you x=25, so your answer is 25.
Hope this helps! Have a great day! :)
Answer:
she will play 31 chords
Step-by-step explanation:
IM ASKING AGAIN NEED HELPPPPPPPPP
Answer:
Step-by-step explanation:
It's should be c if it not then sry
What is the equation of a line through point (-4,5) that is perpendicular
to the line with equation y= -6x+4?*
Answer:
set two equation of line y=ax+b and y=cx+d
when these two lines are perpendicular to each other, then a*c=(-1)
set answer is y=ax+b
we can know that a=1/6
bring in a=1/6 and(-4,5)
5=(1/6)*(-4)+b
=>5=(-2/3)=b
=>b=5 2/3
answer is y=(1/6)x+5 2/3
The sides of a triangle measure 2x + 5, X – 4, and
3(2x + 1). What is the perimeter of the triangle?
Answer:
9x+4
Step-by-step explanation:
perimeter= sum of all sides
perimeter= (2x+5)+ (x-4)+ 3(2x+1)
= 2x+5+x-4+ 6x+3
= 2x+x+6x+5+3-4
= 9x+8-4
=9x+4
Help me with this, it’s due in a bit!
Answer:
64 square centimeters
Step-by-step explanation:
The surface are of a pyramid is found by finding the sum of the area of the four sides and the base.
Finding the triangular face:
Area of triangle = \(\frac{1}{2} b h\) = \(\frac{1}{2}*4*6 = 12\)
12 * 4 (4 sides) = 48 square cm
Finding the Base = \(w * l = 4 * 4 = 16\)
Finally, we add it together. 48 + 16 = 64
The chef of a pizza place used 7/10 of package of pepperoni and 3/10 of a package of sausage. How nuch more pepperoni than sausage did chef use?
Answer: he use 4 pepperoni more than sausage every times he put 10 meat on the pizza
Step-by-step explanation: both are on 10 so you don't need to change it so 7-3=4 and it's on ten which mean that every times he put 3 sausage, he have to put 7 pepperoni
a program admissions coordinator wanted to know if the math placement test given to a certain cohort of students was an indicator on how well they would perform on their first exam. she records the scores of their placement test and first exam below. is there a correlation between these measures? placement exam 1 11 49 27 71 7 60 33 85 28 80 23 75 20 61 48 100 35 71 26 81
Yes, there is a correlation between these measures. The higher the placement exam score, the higher the student's score on their first exam tends to be. For example, students with placement exam scores of 11 and 49 had first exam scores of 27 and 71 respectively, indicating that the higher the placement exam score, the higher the first exam score.
What does the word "measure" mean?A measure in mathematics is a generalization of the ideas of length, area, and volume. Measures are sometimes referred to as "mass distributions" informally. A measure, in more exact terms, is a function that gives numbers to particular subsets of a given set. This quantity is described as the set's measure.
What are some measures' examples?To measure length or distance, this system employs inches, feet, yards, and miles. Volume or capacity are expressed in fluid ounces, cups, pints, quarts, or gallons. In ounces, pounds, and tons, weight or mass is expressed.
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According to the Rational Root Theorem, the following are potential roots of f(x) = 60x2 – 57x – 18.
Negative six-fifths, Negative one-fourths, 3, 6
Which is an actual root of f(x)?
Answer: OPTION B
Step-by-step explanation:
i need help smh..anyways can someone help me? like asap-
Answer: x<-1
Step-by-step explanation:
The answer is A!
Answer:
See below.
Step-by-step explanation:
Solving the inequality :-
18 < -3(4x - 2)18 < -12x + 612 < -12x-1 > xx < -1Graph A shows the solution to the inequality correctly
Evaluate -5x - 3
When x = 7
Answer:
-38
Step-by-step explanation:
-5x -3, x=7
= -5 * 7 - 3
= - 35 - 3
= - 38
Answer:
-38
Step-by-step explanation:
-5x-3
-5(7)-3
-5×7=-35
-35-3
changes into 35+3 except dont forget to bring that negative sign with you
-35-3 which is actual (35+3) = -37
Can someone finish this fast
Answer:
y + 9 = - 2(x - 9)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Calculate m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (9, - 9) and (x₂, y₂ ) = (- 2, 13)
m = \(\frac{13+9}{-2-9}\) = \(\frac{22}{-11}\) = - 2
Using (a, b ) = (9, - 9 ) , then
y - (- 9) = - 2(x - 9) , that is
y + 9 = - 2(x - 9)
three quantities that depend on time
Answer:
Velocity, Acceleration, Speed
Step-by-step explanation:
1.24 x 10^5 in standard form
pls hurry
Consider the following right triangle. Select the ratio equivalent to cos(C).
Answer:
cos (C) = (2x + 5) / (3x + 2)
Step-by-step explanation:
The cosine ratio is cos (θ) = adjacent side/hypotenuse.
When C is θ, BC is the adjacent side and AC is the hypotenuse (always opposite the right angle).
Since BC =2x + 5 and AC = 3x + 2, cos (C) = (2x + 5) / (3x + 2)
A researcher creates two random samples, each with a sample size of 12. He
does not find a statistically significant difference between the two groups.
Which of the following statements is correct? Select all that apply.
A. The sample size does not impact results of statistical
significance.
B. Since random samples were used, the conclusion is likely to be
true.
C. Since the sample size of each group is greater than 10, the
conclusion is likely to be true.
D. Since the sample size is small, the conclusion is likely to be
untrue.
SUBMIT
None of the given statements (A, B, C, or D) can be selected as correct based solely on the information provided.
From the given information, we have two random samples, each with a sample size of 12, and no statistically significant difference is found between the two groups. Based on this, we can evaluate the given statements:
A. The statement "The sample size does not impact results of statistical significance" is not correct.
The sample size does impact the results of statistical significance. Generally, larger sample sizes increase the power of the statistical test and improve the ability to detect significant differences.
B. The statement "Since random samples were used, the conclusion is likely to be true" is not necessarily correct.
While random sampling helps to reduce bias and increase generalizability, it does not guarantee the truth of the conclusion.
Other factors such as sample representativeness, research design, and analysis methods also contribute to the validity of the conclusion.
C. The statement "Since the sample size of each group is greater than 10, the conclusion is likely to be true" is not entirely accurate.
While having sample sizes greater than 10 is often considered a guideline for certain statistical tests, it is not the sole determining factor for the validity of the conclusion.
D. The statement "Since the sample size is small, the conclusion is likely to be untrue" is not necessarily correct.
The small sample size itself does not automatically invalidate the conclusion.
It depends on the specific research question, effect size, variability, and statistical power of the test.
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Your professor either gives hard tests or easy tests. 60% of the time he gives hard tests, and the rest of the time they are easy. Hard tests produce normally distributed scores with a mean of 57 and a standard deviation of 15. Easy tests also produce normally distributed scores, but with a mean of 74 and a standard deviation of 10.1. If your friend (of unknown ability) gets a score above a 72, what is the probability it was an easy test?2. The class has 4 students. The average score for the class was below 66, what is the probability it was an easy test?
To solve the given probabilities, we can use Bayes' theorem. Let's define the following events:
E: It was an easy test
H: It was a hard test
A: The score is above 72
B: The average score for the class was below 66
We are given the following information:
P(H) = 0.60 (probability of a hard test)
P(E) = 1 - P(H) = 0.40 (probability of an easy test)
P(A|H) = P(score above 72 | hard test) (to be determined)
P(A|E) = P(score above 72 | easy test) = 1 - P(score below or equal to 72 | easy test)
P(B|H) = P(average score below 66 | hard test) (to be determined)
P(B|E) = P(average score below 66 | easy test) = 1 - P(average score above or equal to 66 | easy test)
To find the probability that it was an easy test given a score above 72, we can use Bayes' theorem:
P(E|A) = (P(A|E) * P(E)) / (P(A|E) * P(E) + P(A|H) * P(H))
We are given P(A|E) = 1 - P(score below or equal to 72 | easy test), which can be calculated using the normal distribution and the mean and standard deviation for the easy test scores.
To find the probability that it was an easy test given an average score below 66, we can use Bayes' theorem:
P(E|B) = (P(B|E) * P(E)) / (P(B|E) * P(E) + P(B|H) * P(H))
We are given P(B|E) = 1 - P(average score above or equal to 66 | easy test), which can be calculated using the normal distribution and the mean and standard deviation for the easy test scores.
1. Probability it was an easy test given a score above 72 (P(E|A)):
First, we calculate P(A|H) using the normal distribution and the mean and standard deviation for the hard test scores. Then, we can substitute the values into Bayes' theorem formula.
2. Probability it was an easy test given an average score below 66 (P(E|B)):
First, we calculate P(B|H) using the normal distribution and the mean and standard deviation for the hard test scores. Then, we can substitute the values into Bayes' theorem formula.
Please note that calculating probabilities using normal distribution involves using z-scores and cumulative distribution functions (CDF). Let's perform the calculations:
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Is the dilation an enlargement or a reduction? What is the scale factor of the dilation?
O reduction; 1/2
O enlargement; 2
Oreduction; 2
O enlargement;
1/2
Answer:
enlargement ; 2
Step-by-step explanation:
dilation is change in the size of the figure.
in the given scenario, figure's size is increasing so dilation is called enlargement and scale factor must be greater than 1.
scale factor = dimension of new shape / dimension of original shape
let's calculate the difference in terms of boxes of both figures to calculate the scale factor,
scale factor = 6/3
thus, in the given dilation we have enlargement of 2
Complete the work to find the dimensions of the rectangle. w(2w + 4) = 240 2w2 + 4w = 240 2w2 + 4w – 240 = 0 2(w + 12)(w – 10) = 0 What is the width of the rectangle? What is the length of the rectangle?
Answer:
Length = 24 and width = 10
Step-by-step explanation:
Initially we start with;
w(2w + 4) = 240
Since we are dealing with a rectangle, it means that w is the width while (2w + 4) is the length.
Further more we see that;
2(w + 12)(w – 10) = 0
Thus means that;
w + 12 = 0 or w - 10 = 0
Thus,w = -12 or w = 10
Width can't be negative and so we pick w = 10
Since length = (2w + 4), then;
Length = 2(10) + 4
Length = 20 + 4 = 24
Answer:
the width is 10 cm and the length is 24cm
Step-by-step explanation:
i just did it
An equilateral triangle has a perimeter of 12 x + 18 units. Which expression can be used to show the length of one side of the triangle?
6 (2 x + 3): Each side length is 2 x + 3 units.
3 (4 x + 6): Each side length is 4 x + 6 units.
2 (6 x + 9): Each side length is 6 x + 9 units.
x (12 + 18): Each side length is 12 + 18 units.
Answer:
3 (4 x + 6): Each side length is 4 x + 6 units.
Step-by-step explanation:
Perimeter of equilateral triangle = 12x + 18 = 3(4x + 6) units
Answer:
B
Step-by-step explanation:
An equilateral triangle has a perimeter of 12 x + 18 units. Which expression can be used to show the length of one side of the triangle?
6 (2 x + 3): Each side length is 2 x + 3 units.
✔3 (4 x + 6): Each side length is 4 x + 6 units.
2 (6 x + 9): Each side length is 6 x + 9 units.
x (12 + 18): Each side length is 12 + 18 units.
Math in the Real World Terrell plotted points on the coordinate plane as shown. He noticed that the points lie on a straight line. Write an equation that shows the relationship between the x- and y-coordinate of each point Terrell plotted. Then use the equation to find the y-coordinate of a point on the line with an x-coordinate of 20. YA 10 8 6 2 (5.2) (9,6) (8,5) (3, 0) 0 2 4 6 8 10 x
POINTS:50 (EMERGENCY!)
Problem 4-05 (Algorithmic)
In American football, touchdowns are worth 6 points. After scoring a touchdown, the scoring team may subsequently attempt to score 1 or 2 additional points. Going for 1 point is virtually an assured success, while going for 2 points is successful only with probability p. Consider the following game situation. The Temple Wildcats are losing by 14 points to the Killeen Tigers near the end of regulation time. The only way for Temple to win (or tie) this game is to score two touchdowns while not allowing Killeen to score again. The Temple coach must decide whether to attempt a 1-point or 2-point conversion after each touchdown. If the score is tied at the end of regulation time, the game goes into overtime. The Temple coach believes that there is a 49% chance that Temple will win if the game goes into overtime. The probability of successfully converting a 1-point conversion is 1.0. The probability of successfully converting a 2-point conversion is p.
Assume Temple will score two touchdowns and Killeen will not score. Create a decision tree for the decision of whether Temple's coach should go for a 1-point conversion or a 2-point conversion after each touchdown. The terminal nodes in the decision tree should be either WIN or LOSE for Temple.
The coach needs to evaluate the value of p, which represents the probability of a successful 2-point conversion, to determine the optimal strategy.
The decision tree for the Temple coach's decision-making process can be constructed as follows:
1. Start: Temple is down by 14 points.2. Temple scores a touchdown (6 points). - Option 1: Temple goes for a 1-point conversion (virtually assured success). - Temple's score increases by 1.
- Option 1.1: Temple scores another touchdown (6 points).
- Temple wins the game.
- Option 1.2: Temple fails to score another touchdown.
- Temple loses the game.
- Option 2: Temple goes for a 2-point conversion (success with probability p).
- Temple's score increases by 2.
- Option 2.1: Temple scores another touchdown (6 points).
- Temple wins the game.
- Option 2.2: Temple fails to score another touchdown.
- Temple loses the game.
By analyzing the decision tree, the Temple coach should choose the option that maximizes the probability of winning. If p is reasonably high, going for the 2-point conversion might be a better choice since it increases the chance of winning in regulation time. However, if p is relatively low, going for the 1-point conversion and relying on overtime (with a 49% chance of winning) might be a safer option.
Ultimately, the coach needs to evaluate the value of p, which represents the probability of a successful 2-point conversion, to determine the optimal strategy.
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