x is the independent variable and H(x) is the dependent variable
How to determine independent and dependent variables?
A dependent variable is a variable whose value depends upon independent variables.
An independent variable is a variable that does not depend on any other variable for its value.
For example, in an expression, y = 3x + 2, x is an independent and y is a dependent variable because y depends on x for its value
Given: H(x) = 3+0.5x
Therefore, x is the independent variable and H(x) is the dependent variable because it is a function of x
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Murphy and Nikita can fill their swimming pool with one hose in 10 hours. If they use another hose to help fill the pool, the pool
can be filled in 4 hours. How long would it take the other hose to fill the pool working alone? Round to the nearest tenth.
Answer:
Step-by-step explanation:
so you just have to round where it came from
Which of the following is equivalent to 60 Superscript one-half?
Answer
[tex]60\sqrt{x} 2[/tex]
Step-by-step explanation:
Answer:
StartRoot 60 EndRoot
Step-by-step explanation:
Edge
you want to determine whether a new medication affects children's test scores. you have 10 sets of identical twins as your sample. one twin in each set takes the medication, while the other doesn't. you will compare the test scores of the medicated twins to the test scores of the unmedicated twins. the null hypothesis is that there will be no difference in test scores between the medicated and unmedicated twins. which tool within data analysis will you use?
T-test paired two samples for means should be used .
What does test score mean?
A test score is a numeric piece of information that describes how well a test-taker performed. It is described in one formal definition as "a summary of the evidence contained in an examinee's responses to the items of a test that are related to the construct or constructs being measured."here the samples are dependent, the score of one twins is compared with the score of any another from the same pair .
Hence, T-test paired two samples for means should be used
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help me on this math please!
The function rule for each are:
f(x) = -2x - 6
g(x) = 5x - 4
f(x) is less than g(x), in terms of slope, while in terms of y-intercept, f(x) is greater than g(x).
How to Write the Rule of a Function?The rule of a function can be written in slope intercept form as, f(x) = mx + b, where the slope is m and the y-intercept is the value of b.
To write the function rule for f(x), substitute m = -2 and b = -6 into f(x) = mx + b:
f(x) = -2x - 6
Find the slope of the function g(x) whose graph is given:
Slope of g(x) = rise/run = 5/1 = 5
m = 5
The y-intercept is at y = -4, therefore b = -4.
To write the function rule for g(x), substitute m = 5 and b = -4 into g(x) = mx + b:
g(x) = 5x - 4
In terms of slope, f(x) is less than g(x)
In terms of y-intercept, f(x) is greater than g(x).
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The length of the base of an isosceles triangle is x. The length of a leg is 4x-3. The perimeter of the triangle is 129 Find x.
The value of x in the given isosceles triangle is x = 15
Perimeter of an isosceles triangle: Calculating the value of xFrom the question, we are to determine the value of x.
From the given information,
The length of the base of the isosceles triangle is x
Also,
The length of a leg is 4x - 3
Since, the length of the legs of an isosceles triangle are equal,
Then,
The length of the other leg is 4x - 3
Also, form the given information,
The perimeter of the triangle is 129
Thus,
x + 4x - 3 + 4x - 3 = 129
Now, solve for x
x + 4x - 3 + 4x - 3 = 129
Collect like terms
x + 4x + 4x = 129 + 3 + 3
9x = 135
Divide both sides by 9
9x/9 = 135/9
x = 15
Hence, the value of x is 15
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A restaurant has a 33,500 gallon aquarium and a 500 gallon aquarium. About how many times is the capacity of the smaller aquarium?
Answer:
67 times
Step-by-step explanation:
33,500 divided by 500 is equivalent to 67
Write the converse, inverse, and contrapositive of the following conditional statement.
"If I eat too much candy, I will get sick."
Converse: If I get sick, I ate too much candy.
Inverse: If I don't eat too much candy, then I will not get sick
Contrapositive: If I do not get sick, I did not eat too much candy.
What is the conditional statement?
'If p, then q's statements are examples of conditional statements. In this case, "p" stands for "hypothesis" and "q" for "conclusion."
A converse statement is one that is produced by flipping a conditional statement's hypothesis and conclusion.
So, Converse: If I get sick, I ate too much candy.
An inverse assertion presupposes that each of the original claims is true.
So, Inverse: If I don't eat too much candy, then I will not get sick.
When you reverse the hypothesis and the conclusion in a statement, you have a contrapositive statement that refutes both propositions.
So, Contrapositive: If I do not get sick, I did not eat too much candy.
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Algebra 2 please help!
Which table of values would produce the graph shown above?
The table (D) values would produce the same graph as shown.
What is a Graph?Mathematical structures known as graphs are used to describe pairwise relationships between things. Graph theory is the study of these mathematical structures. Vertices (also known as nodes or points) and edges are what make up a graph in this sense (also called links or lines). It is possible to distinguish between directed and undirected graphs, where edges connect two vertices asymmetrically and symmetrically, respectively. One of the primary topics in discrete mathematics is graphs.
From the graph, find the intercepts,
At x = 0, the value of y is -1.
At, y = 0, the value of x is 4
So, from the given options, we can see that the values are given in table (D).
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you have 100 feet of fence to make a rectangular play area alongside the wall of your house. the wall of the house bounds one side. what is the largest possible area (in square feet)?
The length and width of the rectangle are 50 feet and 25 feet respectively, the product of which gives the area of the rectangle which is 1250 feet.
Given, 100 feet of fence to make a rectangular play area that is side by side with the wall of your house.
The perimeter of the rectangle is = 2x+2y, since the wall bounds from one side as given in the question perimeter changes to = x+2y.
Perimeter = x+2y
100 = x+2y
100 = 50+2y
2y = 50
y = 25
Using this we found the length and width of the rectangle which is equal to 50 feet and 25 feet respectively. The area which is the final answer comes out to be 1250 feet.
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Gabriel Harris earns an annual salary of $156,000 as CFO of
TechMedia, Inc. He is married and claims three dependents. TechMedia
recently converted from a weekly pay plan to a monthly pay plan.
How much more will Gabriel have deducted from his monthly pay
than from his weekly pay for state income tax?
Answer:
Step-by-step explanation:
Gabriel Harris earns an annual salary of $156,000 as CFO ofTechMedia, Inc. He is married and claims three dependents. TechMediarecently converted from a weekly pay plan to a monthly pay plan.How much more will Gabriel have deducted from his monthly paythan from his weekly pay for state income tax?
a data analyst creates a scatterplot with a lot of data points. the analyst wants to make some points on the plot more transparent than others. what aesthetic should the analyst use?
Analyzers should use the Alpha aesthetic.
Using the Alpha aesthetic, specific points on a scatterplot are more transparent than others to highlight specific data points.
What is a scatterplot?
A scatter plot is a set of points plotted along a horizontal and vertical axis. In statistics (also known as variables), scatter plots are crucial to demonstrating whether a correlation exists between observational quantities or phenomena.
A scatter plot plots data points on a horizontal and vertical axis to demonstrate one variable's influence on another. Each row in the data table is represented by a marker whose position is determined by the values of the columns on the X and Y axes.
Using a scatter plot, this line indicates the prevailing direction of a phenomenon. In a scatter plot, a trend line can be used to highlight the direction and speed of price changes.
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if the slope of a line 4/9 the slope of a line perpendicular to this would be
Answer:Use the slope-intercept form to find the slope.
m=4
The equation of a perpendicular line to
y
=
4
x
−
9
must have a slope that is the negative reciprocal of the original slope.
m
perpendicular
=
-1/4
Step-by-step explanation:
hii lily how are u
Given: ΔABC Prove: The sum of the interior angle measures of ΔABC is 180°. Statement Reason 1. Let points A, B, and C form a triangle. Given 2. Let be a line passing through B, parallel to , with angles as labeled. Defining a parallel line and labeling angles 3. 4. M∠1 = m∠4, and m∠3 = m∠5. Congruent angles have equal measures. 5. M∠4 + m∠2 + m∠5 = 180° angle addition and definition of a straight angle 6. M∠1 + m∠2 + m∠3 = 180° substitution What is the missing step in this proof? A. Statement: ∠4 ≅ ∠5, and ∠1 ≅ ∠3. Reason: Alternate Interior Angles Theorem B. Statement: is parallel to. Reason: is a transversal cutting and. C. Statement: ∠1 ≅ ∠4, and ∠3 ≅ ∠5. Reason: Alternate Interior Angles Theorem D. Statement: ∠1 ≅ ∠4, and ∠3 ≅ ∠5. Reason: ∠1 and ∠4, and ∠3 and ∠5 are pairs of supplementary angles
From the given statements regarding angle the point b) DE is parallel to AC with its reason - AB is a transversal cutting DE and AC will be the correct statement.
DE and AC are parallel for this to work angle 1 is at A, angle 2 is at B and angle 3 is at C. In addition, angle 4 is the alternate interior angle to angle 1 once DE is constructed, as is angle 5 to angle 3. Then the missing reasons are alternate interior angles theorem and definition of congruent angles.
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A history teacher asked her students how many hours of sleep they had the night before a test. The data below shows the number of hours the student slept and their score on the exam. What is the best linear regression model rounded to the nearest hundredth? image A. y = 6.38 x + 35.63 B. y = 6.37 x + 0.78 C. y = 35.60 x + 6.378 D. y = 35.63 x + 6.38
The best linear regression model for the grade according to the number of hours slept is of:
A. y = 6.38 x + 35.63.
How to obtain the equation of linear regression for a data-set?To obtain the linear regression equation, also called line of best fit or least squares regression equation, we need to insert the points (x,y) in a linear regression calculator. These points are given on a table or in a scatter plot in the problem.
For this problem, the points are given in the table given by the image at the end of the answer, and are given as follows:
(8, 83), (7, 86), (7, 74), (8, 88), (6,76), (5, 63), (7, 90), (4, 60), (9,89), (7,81).
Inserting these points into the linear regression equation, the equation is given as follows:
y = 6.38 x + 35.63.
Hence the correct option is given by option A.
Missing Information
The problem is given by the image shown at the end of the answer.
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Tyshawn has $600 to spend at a bicycle store for some new gear and biking outfits.
Assume all prices listed include tax.
• He buys a new bicycle for $237.49.
He buys 3 bicycle reflectors for $14.57 each and a pair of bike gloves for $34.52.
He plans to spend some or all of the money he has left to buy new biking outfits
for $71.07 each.
●
●
Use the drop-down menu below to write an inequality representing o, the number of
outfits he can buy while staying within his budget.
Answer: The answer would be 4 biking outfits o=4
Step-by-step explanation:
First add all the money he spent excluding the outfits. The answer would be 315.72. Then subtract 600 and 315.72 = 284.28. Last multiply 71.07 by 4 which gets you 284.28. The EXACT amount he has left. Answer is he can be 4 new biking outfits within his budget. Hope I could help!
(2sin(x) - 1)(tan(x) - 1) = 0 for 0 ≤ x ≤ 2 pi
Answer: x1=π/6 ,x2 = π/4, x3 = 5π/6, x4 5π/4
Step-by-step explanation:
2sin(x)-1=0
tan(x)-1=0
sin(x)=1/2
tan(x)=1
x=π/6
x=5π/6
x=π/4
x=5π/4
x1=π/6 ,x2 = π/4, x3 = 5π/6, x4 5π/4
what is the factored form 8g^2+6g-9
Answer:
A.
Step-by-step explanation:
A pharmacist wants to mix a 40 % saline solution with a 12% saline solution to get 119 ml. of a 32% saline solution. How much of each solution should she use?
Round your answer to the nearest ml
A pharmacist wants to mixture of 40 % saline solution with a 12% saline solution to get 119 ml. of a 32% saline solution. He used 85 ml of 40% saline solution and 34 ml of 12% saline solution.
Define mixture.Mixture word problems require you to combine two or more separate items, and then calculate some quantity of the resulting mixture (such as a percentage, price, or number of liters, for example). There will always be some type of "rate," like miles per hour or price per pound. Mixtures are substances that contain two or more distinct substance categories. To separate them, utilize physical tools. Examples include air, different gases, a mixture of sugar and water, a solution of salt and water, and so on.
Given,
A pharmacist wants to mixture of 40 % saline solution with a 12% saline solution to get 119 ml. of a 32% saline solution.
Equation:
X + y = 119
y = 119 - x
0.40x + 0.12y = 119 of 0.32
0.40x + 0.12y = 38.08
Using y = 119 -x
0.40x + 0.12(119 - x) = 38.08
0.40x + 14.28 - 0.12x = 3808 Eq(2)
0.28x = 23.8
x = 85
y = 119 - 85
y = 119 - 85
y = 34
Equating values in equation (2),
0.40(85) + 0.12(34)
34 + 4.08
38.08
A pharmacist wants to mix a 40 % saline solution with a 12% saline solution to get 119 ml. of a 32% saline solution. He used 85 ml of 40% saline solution and 34 ml of 12% saline solution.
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4. Which of the following statements is true?
A. -8> -7
B.9<3
C.0> -3
D. 0> 4
Answer:
C
Step-by-step explanation:
If you look at a number line, you can see that numbers with greater values are to the right of numbers with smaller values.
-8 is to the left of -7 on a number line so it is not greater
9 is to the right of 3 on a number line so it is not smaller
0 is to the right of -3 on a number line so it is greater
And lastly, 0 is to the left of 4 on a number line so it is not greater
A polygon has 7 sides. The interior angle measures are 131°, 119°, 125°, 133°, 125°, 138°, and x°. Find the value of x.
HELPPPP PLEASEEE ASAPP
Solve the following
2( x + 3 ) = x - 4
2x + 6 = x - 4
x ≈ -0,67
or
x = -2^3
Solve the following system of linear equations ( Step-by-step)(Tell me, what is x,y,z):
2x - 3y + 6z = -12
5x + 2y - 8z = 29
7x + 6y + 4z = 49
The solution to the linear system of equation is x = 3, y = 5, and z = -0.5
What is a linear system of equation?A system of linear equations is a set of linear equations that involve the same variable and which work or are operated (simultaneously) together
The system of linear equation is presented as follows;
2·x - 3·y + 6·z = -12...(1)
5·x + 2·y - 8·z = 29...(2)
7·x + 6·y + 4·z = 49...(3)
Multiplying equation (1) by 5 and equation (2) by 2, we get;
5 × Equation (1) ⇒ 10·x - 15·y + 30·z = -60...(4)
2 × Equation (2) ⇒ 10·x + 4·y - 16·z = 58...(5)
Subtract equation (4) from equation (5), to get;
10·x - 10·x + 4·y - (-15·y) - 16·y - 30·z = 58 - (-60) = 118
19·y - 46·z = 118...(6)
Multiplying equation (1) by 7 and equation (3) by 2, we get;
7 × Equation (1) ⇒ 14·x - 21·y + 42·z = -84...(7)
2 × Equation (3) ⇒ 14·x + 12·y + 8·z = 98...(8)
Subtracting equation (7) from equation (8), we get;
14·x - 14·x + 12·y - (-21·y) + 8·z - 42·z = 98 - (-84) = 182
33·y - 34·z = 182...(9)
Multiplying equation (6) by 33 and equation (9) by 19, we get;
627·y - 1,518·z = 3,894...(10)
627·y - 646·z = 3,458...(11)
Subtracting equation (10) from equation (11), we get;
627·y - 627·y -646·z - (-1,518·z) = 3,458 - 3,894 = -436
872·z = -436
z = -436 ÷ 872 = -0.5
z = -0.5
From equation (6), we have;
19·y - 46·z = 118
19·y - 46 × (-0.5) = 118
19·y - 46 × (-0.5) = 118
19·y = 118 + 46 × (-0.5) = 95
y = 95 ÷ 19 = 5
y = 5
From equation (1), we get;
2·x - 3·y + 6·z = -12
2·x - 3 × 5 + 6 × (-0.5) = -12
2·x = -12 + 3 × 5 - 6 × (-0.5) = 6
x = 6 ÷ 2 = 3
x = 3
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The function h is defined by h (x) = 2(x − 7).
What is the value of h (8) ?
2
23
30
9
Answer:
h(8) = 2
Step-by-step explanation:
substitute x = 8 into h(x) , that is
h(8) = 2(8 - 7) = 2(1) = 2
help meeeeeeeeeeeeeeeeeee pleaseeeeeeeeee!!!!!!!!!!!!!!!!!!!!!
Answer:
2. 25
max = 88 feet
See the attachment photo!
two cars start moving from the same point. one travels south at 60 mi/h and the other travels west at 25 mi/h. at what rate is the distance between the cars increasing three hours later? 3 hours
The distance between the two cars varies at a speed of 65 m/h after two hours.
Let y represent the car's southward travel distance.
Let x be the distance traveled by the westbound automobile.
Allow a to be the distance between the two vehicles.
A right-angled triangle can be used to symbolize these three distances. So, we can state:
a^2 = x^2 + y ^2
Given that the distances vary with respect to time, let's make a distinction.:__________(1)
2a da/dt = 2x dx/dt +2y dy/dt
Rate of distance change between two cars, da/dt
The car is traveling west (dx/dt) at 25 m/h, while the car traveling south (dy/dt) is traveling at 60 m/h.
Therefore:
dy/dt = 60 m/h and dx/dt = 25 m/h
The separation between the two cars will be after two hours:
y = 3* 60 = 180 miles
x = 3 * 25 = 75 miles
Therefore:
a^2 = x^2 + y ^2
a^2 = 75 ^2+ 180 ^2
a= [tex]\sqrt{5625 + 32400}[/tex]
a= 195
From (1):
195(da/dt) = 75(25) + 180(60)
195(da/dt) = 1875 + 10800 = 12675
da/dt = 12675 / 195 = 65 m/h
As a result, after two hours, the two automobiles' separation is varying at a speed of 65 m/h.
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A jewel case contains 7 white gems, 5 green gems, and 3 blue gems. Gems are selected at random. Explain why
the events picking a green gem and then another green gem without replacement are dependent. Then, identify
the probability.
A.) P(green) is the same when it is known that a green gem has been picked already.
P(green and green) = 4/45
B.) Pgreen) is different when it is known that a green gem has been picked already.
P(green and green) = 2/21
C.) P(green) is different when it is known that a green gem has been picked already.
P(green and green) = 5/42
D.) Pgreen) is the same when it is known that a green gem has been picked already.
P(green and green) = 1/9
The second probability is affected by the first probability. So, we can say that this is a dependent probability.
Probability of choosing the first gem green = 1/3Probability of choosing the second gem green = 2/7Given,
Number of white gems = 7
Number of green gems = 5
Number of blue gems = 3
Total number of gems = 7 + 5 + 3 = 15
We have to find the probability when picking a green gem and then another green with out replacement are dependent.
Here,
Probability of choosing the first gem green = Number of green gems / total number of gems
Probability = 5/15 = 1/3
Now,
Number of green gems = 4
Total number of gems = 14
Probability of choosing the second gem green = Number of green gems / Total number of gems
Probability = 4/14 = 2/7
Here,
The second probability is affected by the first probability. So, we can say that this is a dependent probability.
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Determine the period.
Answer:
shopkeeper sells a book at INR 960 for a profit of 20% and another book at INR 720 for a loss of 10%. Find the total profit/loss of the shopkeeper
for an ordered pair (x comma y )in a relation, the x element represents the .
for an ordered pair (x comma y )in a relation, the x element represents the horizontal axis.
what is the area of the figure?
The area of the figure is 1875 sq.in.
In this question, we need to find the area of the given figure.
the area of the figure = area of rectangle + area of two triangles.
For rectangle,
length = 50 inch and width = 30 in.
Using the formula for the area of rectangle,
A1 = length * width
A1 = 50 * 30
A1 = 1500 sq.in.
For triangle,
base = 1/2 * length of rectangle
so, base = 25 in and height = 15 inch
Using the formula for the area of triangle,
A2 = 1/2 * base * height
A2 = 1/2 * 25 * 15
A2 = 187.5 sq.in.
so, the area of the figure would be,
A = A1 + (2 * A2)
A = 1500 + (2 * 187.5)
A = 1875 sq.in.
Therefore, the area of the figure is 1875 sq.in.
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Which equation represents a line which is perpendicular to the line y=-4x-5?
A.x+4y=−32
B.4x+y=3
C.4x−y=−4
D.4y−x=4
