Answer:
5
Step-by-step explanation:
The mode is the number that appears the most in a set.
5 appears 4 times
7 appears 3 times
11 appears 2 times
9 and 3 appear 1 time
5 is the mode as it appears the most amount of times.
Please give brainliest if I helped!
f(x) = 2x+ 1 and g(x) = x2 - 7, find (F - 9)(x).
Answer:2x²+56
Step-by-step explanation:
2x+1-9·X²-7
2x²+56
Hope this Helps!!!!
At the Joseph Jacobs Exhibit at the museum, there is a Jack in the Beanstalk play place
with stairs and slide Jack's journey up the giant's lair. At the top of the stairs, there is a slide
to get down. Consider the diagram of the stairs and slide below.
If each step is two feet long and three feet high, then determine the angle of elevation
from the ground to the top of the stairs to the nearest tenth of a degree.
The angle of elevation from the ground to the top of the stairs is approximately 56.3 degrees to the nearest tenth of a degree.
In the given diagram, the vertical height of each step is 3 feet and the horizontal distance of each step is 2 feet.
Let h be the total vertical height from the ground to the top of the stairs. Then the number of steps, n, is given by:
h = 3n
The total horizontal distance, d, is given by:
d = 2n
We can use the Pythagorean theorem to relate the vertical height and horizontal distance to the angle of elevation, θ:
Beginning equation:
θ = h/d= 3n/2n = 3/2
Taking the arctan of both sides, we get:
θ = arctan(3/2) ≈ 56.3°
Therefore, the angle of elevation from the ground to the top of the stairs is approximately 56.3 degrees to the nearest tenth of a degree.
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Salma's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Salma $5.60 per pound, and type B coffee costs $4.40 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $451.20. How many pounds of type A coffee were used?
Answer: hi
11,28 pound / usd
Step-by-step explanation:
Plz help ASAP assignment due today !!!
Write the Properties of at least 5 different types of polygons of your choice and the properties of a circle.
Square - a rectangle (4 sided shape) whose sides are equal length
Rectangle - a polygon that has 4 sides and 4 right angles - two pairs of parallel lines
Triangle: a polygon with 3 sides and 3 angles. The angles add up to a total of 180 degrees. There are 3 kinds of triangles
Parallelogram - a polygon with 4 sides, 2 pair of parallel lines, 2 obtuse angles and 2 acute angles.
Trapezoid - a polygon with 4 sides and only 1 pair of parallel lines
Circle: a shape with no sides, angles, or parallel lines. Any point in the circumference to the center of the circle is the same length.
Happy to help!
Answer:
1). Triangle - Has 3 equal sides and angles of 60°.
2). Square - A quadrilateral with 4 equal sides and angles (all the angles are right angles).
3). Rectangle - A quadrilateral with 2 equal parallel sides horizontal and vertical. All the angles are equal because they are right angles.
4). Pentagon - It has 5 equal sides with equal angles of 108°.
5). Hexagon - It has 6 equal sides with equal angles of 120°.
PROPERTIES OF A CIRCLE:
It has no sides with no angles. The radius in any direction from the point are of the same length.
Problem No. 7 Three equidistant dots on each of two parallel lines (see sketch for illustration purposes only) are joined in all possible ways. How many triangles can be formed?
Three equidistant dots on each of two parallel lines (see sketch for illustration purposes only) are joined in all possible ways. The number of triangles that can be formed is 20 triangles
How do we determine the value?A "Three equidistant dots" refers to three points that are evenly spaced apart on a line. These three points could represent the vertices of a triangle, and in this case, the question is asking how many triangles can be formed by connecting each of the three dots on one line to each of the three dots on a parallel line.
In total, there are 3 dots on one line and 3 dots on the other line, for a total of 6 dots, and the question is asking how many ways the dots can be connected to form triangles.
To find the number of triangles that can be formed, we use the formula for the number of combinations of n things taken 3 at a time, which is n! / (r!(n-r)!). In this case, n = 6 and r = 3.
So, there are 6! / (3! * 3!) = 20 triangles that can be formed.
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What is the answer to
6-12 divided by (-3)
Evaluate the expression
Answer:2
Step-by-step explanation:
6-12 =-6
-6/-3=2 mark brainliest please
WILL MARK BRAINLEST
Answer:
x=13
Step-by-step explanation:
62+(4x+7)+(6x-5)+41+(3x+6)+(7x-11)=360
62+4x+7+6x-5+41+3x+6+7x-11=360
100+20x=360
20x=360-100
20x=260
x=260/20
x=13
Help,anyone can help me do quetion,I will mark brainlest.
Answer:
c) 25 cm^2
d) 52.5 cm^2
Step-by-step explanation:
5*2 = 1
10/2 = 5
40/2 = 20
20+5 = 25
This is just scratch work^
Omar's Response: The slopes and they
intercepts are different.
Which statements did you include in your answer?
The slopes are different.
The y-intercepts are different.
COMPLETE
The system represents lines that
y, therefore the system has
DONE
Answer: Intersect at one point and exactly one solution.
Step-by-step explanation: I answered it right now in the assignment and it was correct.
Plz help brainiest to the correct answer!
#1
Current temperature=0°C
Temperature before 1 hour
\(\\ \sf{:}\dashrightarrow 0+3°C=3°C\)
#2
Temperature before 3h
\(\\ \sf{:}\dashrightarrow 0+3(3)=0+9=9°C\)
#3
Temperature before 4.5h
\(\\ \sf{:}\dashrightarrow 0+4.5(3)=13.5°C\)
What is 286 times 9.
Answer:
2574
Step-by-step explanation:
Answer:
the answer is =2574
Step-by-step explanation:
hoped I helped:)
need help again. thanks
Answer:
the answer to this one was easy it was 6b-5a = 1
Step-by-step explanation:
answer: 6b-5a = 1
have a good day if you need anymore help just ask
Please find the equation of the quadratic
Answer:
y = 4(x - 3)² - 5
Step-by-step explanation:
Given the vertex, (3, -5), and the other point, (4, -1):
Substitute these values into the vertex form of the quadratic equation:
y = a(x - h)² + k
where:
(h, k) = vertex
a = determines the direction of which the graph opens (if a > 1, the graph opens up; a < 1, the graph opens down). The value of a also determines the width of the parabola. If 0 < a < 1, the graph will be wide; if a > 1, the graph will be narrow.
h = indicates a horizontal translation.
k = indicates a vertical translation.
Next, substitute the values of the vertex, (3, -5), and the other given point, (4, -1) into the vertex form and solve for the value of a:
y = a(x - h)² + k
-1 = a(4 - 3)² - 5
-1 = a( 1 )² - 5
-1 + 5 = a1 - 5 + 5
4 = a
Therefore, the equation of the given graph is: y = 4(x - 3)² - 5.
Note:
If the equation needs to be in standard form, ax² + bx + c, simply expand the binomial factors in the vertex form, and combine like terms. Doing so will result in the following standard form: y = 4x² - 24x + 31.
In the previous problem how does the angle of depression from the top of the taller building relate to the angle of elevation from the top of the shorter building. (You can pick more than once choice)A:They are congruentB:They are complementaryC:They are supplementaryD:They are alternate interior anglesE:They are alternate exterior anglesF:They are corresponding angles.
Equal to the angle of elevation from the top of the shorter structure is the angle of depression from the taller building's top. They form angles that are congruent, complimentary, and additional.
The angle of depression from the top of the taller building is equal to the angle of elevation from the top of the shorter building. This is because when measuring angles, the angle of depression is measured from the horizontal line and the angle of elevation is also measured from the horizontal line. This means that the two angles have the same measure. The angles are also congruent, complementary and supplementary angles. Angles that are complimentary to one another have a sum of 90 degrees, whereas angles that are supplementary to one another have a sum of 180 degrees. This means that the angle of depression from the top of the taller building and the angle of elevation from the top of the shorter building will have the same measure, a sum of 90 degrees, and a sum of 180 degrees, respectively.
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help me plz, I'll mark brainiest
Answer:
1
Step-by-step explanation:
I guess it's the first choice
Use conditional proof and the eighteen rules of inference to derive the conclusions of the following symbolized arguments. Having done so, attempt to derive the conclusions without using conditional proof.
1. N ⊃ O
2. N ⊃ P / N ⊃ (O • P)
The conclusion of the symbolised argument is that N implies (O and P). This can be proven using conditional proof and the eighteen rules of inference, or using the rule of conjunctive simplification.
The symbolic argument's conclusion is that N implies (O and P). This can be demonstrated using conditional proof and the eighteen inference rules.
Proof:
1. N ⊃ O (Premise)
2. N ⊃ P (Premise)
3. N (Assumption)
4. O (1,3 Modus Ponens)
5. P (2,3 Modus Ponens)
6. O•P (4,5 Conjunction)
7. N ⊃ (O•P) (3-6 Conditional Proof)
8. N ⊃ (O•P) (2,7 Disjunctive Syllogism)
This leads us to the conclusion that N implies (O and P).
Without the use of conditional proof, the identical result can be reached. The conjunctive simplification rule can be used to do this.
Proof:
1. N ⊃ O (Premise)
2. N ⊃ P (Premise)
3. N (Assumption)
4. O (1,3 Modus Ponens)
5. P (2,3 Modus Ponens)
6. O•P (4,5 Conjunction)
7. N ⊃ (O•P) (Conjunctive Simplification)
Therefore, we have derived the conclusion that N implies (O and P).
Complete Question:
Use conditional proof and the eighteen rules of inference to derive the conclusions of the following symbolized arguments. Having done so, attempt to derive the conclusions without using conditional proof.
1. N ⊃ O
2. N ⊃ P / N ⊃ (O • P)
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Nathan invested $75,000 in an account paying an interest rate of 6. 8% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $182,800?
Assuming no deposits or withdrawals are made, the time it would take for the value of the account to reach $182,800 is 13.5 years.
Compound interest refers to the amount of interest added on the principal amount plus interest. The formula for compound interest is:
B = P(1 + r/n)^t
where B is the ending balance, P is the principal amount or original balance, r is the interest rate in decimal form, n = number of times interest is compounded monthly, and t is the time in number of months
Based on the given information, t is the unknown and
B = $182,800
P = $75,000
r = 6.8% = 0.068
n = 1
Plug in the values and solve for the time it would take for the value to reach $182,800.
B = P(1 + r/n)^t
$182,800 = $75,000(1 + 0.068/1)^t
$182,800 = $75,000(1.068)^t
(1.068)^t = $182,800 / $75,000
(1.068)^t = 914/375
t = 13.5 years
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If p and q vary invarsely and p is 11 when q is 28, determine q when p is equal to 4
77 is the value of Q in linear equation.
What in mathematics is a linear equation?
A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times.
Equations with power 1 variables are known as linear equations. One example with only one variable is where ax+b = 0, where a and b are real values and x is the variable.
P ∝ 1/Q
PQ = K
AT P= 11
Q = 28
11 * 28 = K
K = 308
AT P = 4
4Q = 308
Q = 77
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V has coordinates (11,-14), and W has coordinates (x,10)
what is the value of X if VW =25?
Answer:
Step-by-step explanation:
The value of X would be 18
x=18
HELP PLEASE JUST THIS QUESTION/ ILL GIVE BRAINLIEST IF CORRECT
Answer:
She earned $288 this week
Step-by-step explanation:
x = 12
Work = 2(12) + 8
24 + 8 = 32 hours
Earned = (12) - 3 = 9 per hour
32 × 9 = $288
I hope this helps!
What is the value of (−135) − 72 − (−16)?
The final value of the expression is -191.
The order of operations is a set of rules that specifies the order in which calculations should be performed in order to obtain the correct result. The acronym PEMDAS can be used to remember the order of operations:
P: Parentheses first
E: Exponents (ie Powers and Square Roots, etc.)
MD: Multiplication and Division (left-to-right)
AS: Addition and Subtraction (left-to-right)
In the expression (-135) - 72 - (-16), the first step is to compute the value within the parentheses.
(-135) - (-16) = -1
In an equation, parentheses represent the first function to be solved. If there aren't any parenthesis, proceed through the PEMDAS sequence of operations until you locate one that is present, and then begin there.
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The correct value for this is -191
Given the issue,
→ (-135) - 72 - (-16) (-16)
Let's deal with the issue.
→ (-135) - 72 - (-16) (-16)
→ (-135) - 72 + 16
→ (-135 - 72) + 16
→ -(135 + 72) + 16
→ -207 + 16
→ -191
The given question (-135) - 72 - (-16) (-16)
Now -135,-72,-16 and-16 should be subtract indusually
Here after -75 should be subtract from -135 and also from -16,-16 then
Consequently, the correct response is -191.
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the number 2549 written to 2 significant figures is
GIVING BRAINIEST EXPLAIN ANSWER
plot points H I and J on the coordinate plane
In order to plot points H I and J on the coordinate planeIdentify the x-coordinate and y-coordinate of each point (H, I, and J). For example, let's say the coordinates are as follows:
Point H: (xH, yH)
Point I: (xI, yI)
Point J: (xJ, yJ)
How to explain the informationLocate the origin (0, 0) on the coordinate plane. This is the starting point for plotting any point.
Move along the x-axis according to the x-coordinate of each point. If the x-coordinate is positive, move to the right; if it's negative, move to the left. Mark a point on the x-axis at the appropriate location.
Move along the y-axis according to the y-coordinate of each point. If the y-coordinate is positive, move upward; if it's negative, move downward. Mark a point on the y-axis at the appropriate location.
The point where the x and y axes intersect is the location of the point. Mark that point on the coordinate plane.
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How to Plot points H I and J on the coordinate plane
Solve for C Law of Sines
The law of sines is solved for the triangle and C =28.7 units
Given data ,
Let the triangle be represented as ABC
Now , the measures of angles and sides are given as
Trigonometry's law of sines can be expressed as a/sinA = b/sinB = c/sinC, where a, b, and c are the lengths of the triangle's sides, and A, B, and C are the triangle's respective opposite angles.
Law of Sines :
a / sin A = b / sin B = c / sin C
c / sin ( 60 )° = 14 / sin ( 25 )°
Multiply by sin 60° on both sides , we get
c = 0.86602540378 ( 14 / 0.42261826174 )
On simplifying , we get
c = 28.688 units
Hence , the measure of c of triangle is c = 28.7 units
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A medical company is building a model to predict the occurrence of thyroid cancer. The training data contains 900 negative instances (people who don't have cancer) and 100 positive instances. The resulting model has 90% accuracy, but extremely poor recall. What steps can be used to improve the model's performance? (SELECT TWO)
A. Under-sample instances from the positive (has cancer) class
B. Generate synthetic samples using SMOTE
C. Over-sample instances from the negative (no cancer) class
D. Collect more data for the positive case
E. Use Bagging
To improve the model's performance in predicting thyroid cancer occurrence, two potential steps to consider are: generating synthetic samples using SMOTE and collecting more data for the positive cases. option b and d
The given problem scenario involves imbalanced classes, with a significantly higher number of negative instances compared to positive instances. This class imbalance can lead to biased model performance, such as poor recall for the minority class (positive instances in this case). Here are the two selected steps and their rationale:
B) Generating synthetic samples using SMOTE: SMOTE is a technique used to address class imbalance by creating synthetic samples of the minority class. It generates new instances by interpolating between neighboring instances of the minority class. By using SMOTE, the positive class can be over-sampled, increasing the representation of thyroid cancer cases in the training data. This can help the model learn better decision boundaries for positive instances and improve recall.
D) Collecting more data for the positive cases: Increasing the number of positive instances in the training data can provide the model with more information to learn from. Collecting additional data specifically for positive cases, such as acquiring more samples of individuals diagnosed with thyroid cancer, can help in better capturing the characteristics and patterns associated with cancer occurrence. This can lead to a more balanced representation of the classes and potentially improve recall.
While options A (under-sampling instances from the positive class) and E (using Bagging) are also strategies to address class imbalance, they may not be as effective in this specific scenario. Under-sampling positive instances may further reduce the information available for learning, and Bagging, although useful for ensemble learning, may not directly address the class imbalance issue or improve recall.
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5(x-2)=x+1
Pls help
(No spam)
Pls show work
Answer:
\(5(x - 2) = x + 1 \\ 5x - 10 = x + 1 \\ 5x - x = 1 0+ 1 \\ 4x = 11 \\ x = \frac{11}{4} \)
The triangle on the right is a scaled copy of the triangle on the left. Identify the scale
factor. Express your answer in simplest form.
15
15
Answer:
Submit Ansar
attempt 1 out of 3
Answer:
the scale factor is 3/5
Step-by-step explanation:
Make a fraction by putting the new (scaled image) over the original image.
9/15.
Simplify by dividing each by 3.
3/5.
The scaled image is smaller so your answer has to be less than 1 and greater then 0.
Given the following exponential function, identify whether the change represents
growth or decay, and determine the percentage rate of increase or decrease.
y = 70(0.96)
Answer:
it is a decay, it's value drops by 4%
Step-by-step explanation:
0.96 is less than 1 so it is a decay function.
1-0.96 = 0.04 so it drops at the rate of 4%
SOME ONE HELP!!! You are still at (1,5). The zombie is 8.7 units below you. Enter the correct coordinates of the zombie below.
Answer:
(1,-3.7)
Step-by-step explanation:
subtract the y axis to go down
5 - 8.7 = -3.7
The solution is B ( 1 , -3.7 )
The coordinates of the zombie is given by B ( 1 , -3.7 )
How does the transformation of a function happen?
The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs), etc.
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units: y=f(x+c) (same output, but c units earlier)
Right shift by c units: y=f(x-c)(same output, but c units late)
Vertical shift:
Up by d units: y = f(x) + d
Down by d units: y = f(x) - d
Stretching:
Vertical stretch by a factor k: y = k × f(x)
Horizontal stretch by a factor k: y = f(x/k)
Given data ,
Let the initial point of the man be A
The value of A = A ( 1 , 5 )
Let the coordinates of the zombie be B
The value of B = B ( x , y )
The zombie is 8.7 units below
So , it is a vertical shift by 8.7 units
Therefore , the y coordinate will decrease by 8.7 units
Substituting the values in the equation , we get
B = A ( 1 , 5 - 8.7 )
B = B ( 1 , -3.7 )
Therefore , the value of B is B ( 1 , -3.7 )
Hence , the coordinates of B is B ( 1 , -3.7 )
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