The best estimate of the average change in mood rating linked with an additional hour spent playing sports is 1.5 points, according to the presented linear function.
Modeling a linear function involves:
y = mx + b
The slope, or m, measures how quickly y changes when x changes by one.
The value of y at x = 0 is represented by the y-intercept, or b.
In the given problem
The amount of time they invested in sports is x.
Their mood score is y.
The required equation is ,
y =1.5 + 5
Given that the slope is m = 1.5, the best estimate of the average change in mood rating resulting from an extra hour spent playing sports is 1.5 points.
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Heather saved 15% buying concert tickets online. If the tickets are regularly $95, how much did Heather pay for them online?
Answer:
Step-by-step explanation:
$80.75 Your welcome
Answer:
$80.75 dollars
Step-by-step explanation:
15% of 95 is 14.25
95 - 14.25 = 80.75
Find the area of the rhombus.
5m,10m,5m, and 10m
Please show your work.
The area of rhombus is 100m²
What is rhombus ?
A rhombus is a quadrilateral with four equal-length sides in planar Euclidean geometry. The term "equilateral quadrilateral" refers to a quadrilateral whose sides all have equal lengths.
A parallelogram is a particular instance of a rhombus. The opposing sides and angles in a rhombus are parallel and equal. A rhombus also has equal-length sides on each side, and its diagonals meet at right angles to form its shape. The rhombus is also referred to as a diamond or rhombus.
A quadrilateral with four equal sides that has the shape of a diamond is called a rhombus. In everyday life, rhombus-shaped objects can be seen. In the illustration below, two instances of rhombuses in nature are shown: a diamond and a kite.
The area of rhombus is
A = pq / 2
The value of p is 10 and q is 20
A = (10 * 20) / 2
= 100m²
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Please tell me what I should shade in!
Answer:
Hope this helps : )
You should shade in 1 whole rectangle on the the bottom left corner and the top half of the second rectangle the bottom right corner.
Step-by-step explanation:
This is because 1 1/2 is one whole rectangle and half of another rectangle. However, in this case the second rectangle on the bottom right corner is split into sixths. So half of it is 3/6 which is equal to 1/2.
Create the equation of a parabola with no x-intercepts.
Answer:
Step-by-step explanation:
No x intercept means it can't touch the x axis y=x^{2}+1 does the trick since it moves the whole thing up one unit
PLEASE HELP!! WILL GIVE BRAINLIEST AND 25 POINTS!!
Solve for x. Round your answer to the nearest tenth.
A. 12
B. 14.4
C. 15.0
Answer: its is 12
Step-by-step explanation:
Literal Equations
help asap !!
Answer: y=13\3 or 4 1\3
Step-by-step explanation:
Use compatible numbers to estimate the correct quotient.
Answer:
60
Step-by-step explanation:
900 divided by 15 is 60
F(x)=2x+7 and g(x)=3x^2+2
Answer:
The answer for f(g(3)) is 65.
Ruby and her children went into a movie theater and she bought $42 worth of bags of popcorn and drinks. Each bag of popcorn costs $6 and each drink costs $4. She bought a total of 8 bags of popcorn and drinks altogether. Determine the number of bags of popcorn and the number of drinks that Ruby bought.
Using system of linear equation the number of popcorn and drinks bought are 5 and 3 respectively
System of Linear EquationIn solving a system of linear equation, we have two unknown variables which we are to find. However, we can use either substitution, elimination or graphical method to solve them.
In this case, to solve this problem, we have to write out two equations and solve for the unknown variable;
let;
x = popcorny = drinksx + y = 8 ...eq(i)
6x + 4y = 42 ...eq(ii)
From eq(i)
x + y = 8
x = 8 - y ...eq(iii)
Put eq(iii) into (ii)
6(8 - y) + 4y = 42
y = 3
put y = 3 into eq(i)
x + 3 = 8
x = 5
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find the probability for the experiment of drawing two marbles (without replacement) from a bag containing three green, three yellow, and four red marbles.
The probability for the experiment of drawing two marbles (without replacement) from a bag containing three green, three yellow, and four red marbles = 0.0111
In this question we need to find the probability for the experiment of drawing two marbles (without replacement) from a bag containing three green, three yellow, and four red marbles.
Total marbles in tha bag
= 3 green marbles + 3 yellow marbles + 4 red marbles
= 10 marbles
the probability of drawing one marble from a bag,
P1 = 1/10
Now there are 9 marbles in the bag.
So, the probability of drawing second marble would be,
P2 = 1/9
So, the required probability of drawing two marbles (without replacement) from a bag would be,
P = P1 * P2
P = 1/10 * 1/9
P = 1/90
P = 0.0111
Therefore, the probability of drawing two marbles (without replacement) from a bag = 0.0111
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~Describe the transformation, by giving the coordinate rule.
8.) (x,y) --> (________,________)
Answer:
(x+3, y-3)
Step-by-step explanation:
While hovering near the top of a waterfall in a national park at 5776 feet, a helicopter pilot accidentally drops his sunglasses. The height h(t) of the sunglasses after t second
is given by the polynomial function h(t)=-16t^2+5776. When will the sunglasses hit the ground?
Answer:
Step-by-step explanation:
set the height function = 0 and solve for t-16t2+6400=0t2 = -6400/(-16)=
Question in picture. Please answer quickly
Answer: [tex]\frac{2\sqrt{2}-1 }{2}[/tex]
Step-by-step explanation:
1. multiply both the numerator and denominator by [tex]2\sqrt{2}[/tex]
2. distribute on the top to get [tex]8\sqrt{2} - 4[/tex] ([tex]\sqrt{2} *\sqrt{2}[/tex] equals 2)
3. multiply the bottom to get 8
4. after getting [tex]\frac{8\sqrt{2}-4 }{8}[/tex], factor out a 4 from each term to get [tex]\frac{4(2\sqrt{2}-1)}{4(2)}[/tex]
5. the fours will cancel and the answer will be [tex]\frac{2\sqrt{2}-1 }{2}[/tex]
= -x + 2. Find the remaining vertices
PERSEVERE A quadrilateral in the coordinate plane has exactly two lines of symmetry, y = x-1 and y
of the figure if there is a vertex at (-1,0). Graph the figure and the lines of symmetry on a separate sheet of paper.
List the coordinates of the vertices by starting with the vertex at (-1,0) and moving clockwise around the quadrilateral.
Answer:
wheres the photo?
Step-by-step explanation:
PLEASE HELP ME!!!!!!!!!!!!!
A state government borrows $2,000,000 at simple annual interest. Some of the money is borrowed at 6%, some at 7.5%, and some at 8.5%. Use a system of linear equations to determine how much (in dollars) is borrowed at each rate given that the total annual interest is $137,000 and the amount borrowed at 7.5% is four times the amount borrowed at 8.5%. Solve the system of linear equations using matrices.
If the amount borrowed at 7.5% is four times the amount borrowed at 8.5%. The amount borrowed is: $200,000, $800,000, $1,000,000.
How to find the amount borrowed?Now let find the amount borrowed
Let X+Y+Z = 2000000
0.06X + 0.075Y + 0.085Z = 137000
Y = 4Z
Substituting Y=4Z into the first and second equations:
X + 5Z = 2000000
0.06X + 0.075(4Z) + 0.085Z = 137000
X = 2000000 - 5Z
0.06X + 0.385Z = 137000
0.06(2000000 - 5Z) + 0.385Z = 137000
120000 - 0.3Z + 0.385Z = 137000
0.085Z + 120000 = 137000
0.085Z = 17000
Divide both side by 0.085Z
Z= 17,000/0.085
Z = 200000
So,
Y = 4Z
Y = 800000
X= 200,000 + 800,000
X = 1000000
Hence,
Z = 200000
Y = 800000
X = 1000000
Therefore the amount borrowed is: $200,000, $800,000, $1,000,000.
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Which word sentence represents the equation?
4y = y + 9
Responses
Four times a number plus 9 is 9.
Four times a number plus 9 is 9.
Four times a number equals the number increased by 9.
Four times a number equals the number increased by 9.
Four increased by a number equals the number increased by 9.
Four increased by a number equals the number increased by 9.
Four times the sum of a number and 9 is the number.
Which graph represents f of x equals square root of the quantity x plus 3 end quantity minus 2?
The graph that correctly represents the function f(x) = [√(x + 3)] - 2 is; Graph D
How to interpret the graph of the function?
We are given the function;
f(x) = [√(x + 3)] - 2
Remember that the argument of a square root must be zero or larger, then the minimum of the domain is the value of x such that:
x + 2 = 0
x = -2
Then the function starts at:
f(-2) = [√(-2 + 3)] - 2
f(-2) = 3
Then the graph should start at (-3, 2).
We can also identify another point by evaluating in x = 2.
f(2) = [√(2 + 3)] - 2
f(2) = -1
So the function also passes through (2, - 1).
Notice that the only graph that contains these two points is the last graph with x-intercept at 7.
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Yoko is riding on a bike course that is 70 miles long. So far, she has ridden 42 miles of the course. What percentage of the course has Yoko ridden so far?
Answer: 60%
Step-by-step explanation:
Take 42 divided by 70, then times 100% = 60%
Yoko has ridden 60% so far!
Diego’s family car holds 14 gallons of fuel. Each day the car uses 0. 6 gallons of fuel. A warning light comes on when the remaining fuel is 1. 5 gallons or less.
Diego says the expression 14-0. 6t helps him understand this situation. In this situation, what does this expression represent, and what does the variable t stand for?
In the given expression 14 - 0.6t, variable t represents the number of gallons of fuel used by the car each day.
Explain the term variable of the equation?A term which includes at least one variable number, symbolized by one or maybe more letters, in an arithmetic operation, equation, or inequality. A symbol (often a letter) used in mathematics to represent an unknowable numerical value in such an equation or algebraic statement. A variable can be defined as a quantity that is changeable and not fixed. Variables are crucial since they make up a significant portion of algebra.For teh stated question-
The gasoline capacity of Diego's family automobile is 14 gallons. The automobile takes 0. 6 gallons of fuel every day. In the event that there are only 1.5 gallons of fuel left, a warning light will turn on.In the given expression 14 - 0.6t, t represents the number of gallons of fuel used by the car each day.
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Why doe the Ditributive property make it eaier to multiply a 2 digit number the a 1 digit number
Distributive property make it easier to multiply a 2 digit number t0 a 1 digit number because by using distributive property we can multiply the number place of the two digit number by one digit number and inlast we can add it , which makes the whole process easier.
According to Distributive property it helps to solve the complex problems easily either they are of 2 digit or many more . Distributive property multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
In other words, according to the distributive property, an expression of the form A (B+C) can be solved as A (B+ C) = AB + AC.
This property applies to subtraction as well.
A (B –C) = AB – AC
For example :- 19 X 6
= 10 X 6 + 9 X 6
= 60 + 54
= 114
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the given set is a basis for a subspace w. use the gram-schmidt process to produce an orthogonal basis for w.
The orthogonal basis produced using the Gram-Schmidt process for W is[tex]y_1=\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right], y_2=\left[\begin{array}{c}5 \\1 \\-6 \\-1\end{array}\right][/tex]
What is orthogonal ?
The concept of orthogonality in mathematics is an extension of perpendicularity in geometry. By extension, the term "orthogonality" is also used to describe the division of particular system properties. The phrase also has specific applications in other disciplines, such as chemistry and painting.
[tex]$$x_1=\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right] \quad \text { and } \quad x_2=\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]$$[/tex]
Using Gram-Schmidt process to produce an orthogonal basis for W
[tex]$$y_1=x_1=\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right]$$[/tex]
Now we know [tex]$X_1, X_2$[/tex] and [tex]$Y_1$[/tex]
Lets solve for [tex]$Y_2$[/tex]
[tex]y_2=x_2-\frac{x_2+y_1}{y_1+y_1} y_1$$[/tex]
[tex]y_2=\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]-\frac{\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right]}{\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right]\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right]}\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right][/tex]
[tex]\begin{aligned}y_2 & =\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]-\frac{7+28-0+1}{1+16+0+1}\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right] \\& =\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]-\frac{36}{18}\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right]\end{aligned}[/tex]
[tex]\begin{aligned}& =\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]-2\left[\begin{array}{c}1 \\-4 \\0 \\1\end{array}\right] \\& =\left[\begin{array}{c}7 \\-7 \\-6 \\1\end{array}\right]-\left[\begin{array}{c}2 \\-8 \\0 \\2\end{array}\right] \\y_2 & =\left[\begin{array}{c}5 \\1 \\-6 \\-1\end{array}\right]\end{aligned}[/tex]
Complete question: The set is a basis for a subspace W. Use the Gram-Schmidt process to produce an orthogonal basis for W. Assume the vectors are in the order bold x1 and bold x2
1 7
-4 -7
0 -6
1 1
The orthogonal basis produced using the Gram-Schmidt process for W is:__________. (Use a comma to separate vectors as needed.)
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∆abc and ∆def satisfy the aaa correspondence. ∆abc and ∆def . is not a criterion for congruency of any two triangles.
Triangles ABC and DEF might or might not be congruent since the angle-angle-angle (AAA) postulate is not a requirement for congruency of any two triangles. This is due to the fact that the angle-angle-angle postulate only takes into account the triangles' angles and does not specify their side lengths, hence congruency for these triangles may or may not be true.
What is a congruent triangle?
Therefore, if two triangles have the same number of sides on each side, they are said to be congruent.
Additionally, we can determine if they are congruent if we have a side, an angle between the sides, and then another side that is congruent, in that order: side, angle, side.
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Answer:
congruent
(AAA)
Step-by-step explanation:
Solve
(type and ordered pair. type an exact answer, using radicals and i as needed, use a comma to separate answers as needed)
Two ordered pairs 45 is x^2 + y^2, 12 is x - y.An ordered pair is made up of the x (abscissa) and y (ordinate) coordinates, with two values stated in a certain order inside parenthesis.
An ordered pair can be found in what way?A pair of ordered numbers contains one point's coordinates in the coordinate system. Using its ordered pair in the form of, a point is given a name (x, y). X and Y coordinates are represented by the first and second numbers, respectively. Using the coordinates of the ordered pair, you can graph a point by placing a dot there.An ordered pair is made up of the x (abscissa) and y (ordinate) coordinates, with two values stated in a certain order inside parenthesis.Think about the following two ordered pairs: (c, d). If (a, b) = and (a, b) = (c, d), they are equivalent (c, d).Explanation:
45 = x^2 + y^2,
12 = x - y.
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ABSTRACT REASONING In △EFG, the bisector of
∠F intersects the bisector of ∠G at point H. Explain
why FG — must be longer than FH — or HG . —
X-Y=4
-2X+6(4-X)=3
-8X+24=3
-24 -24
-8X=-21
X=21/8
Y=11/8
(21/8,11/8)
find the error in the problem.
Answer: You did wrong at Y=11/8! It should be -11/8, not positive 11/8
Step-by-step explanation:
You solved it all right; just the y is wrong! The reason why y is -11/8 is that a negative and a negative will make a positive, and add an x positive, and you will get a positive answer. If y is negative, the answer would be negative!
Lisa paid $46.58 for 16.7 gallons of gasoline. What was the cost per gallon, rounded to the nearest hundredth? It's a 100 points pls
Answer:
2.8
Step-by-step explanation:
First you need to divide the cost by the number of gallons dollars/number of gallons =cost per gallon
And then round it . I hope it helped
The purple team is the only team with a clue at the angle that is an alternate exterior angle to ∠11, but not congruent to it. Which angle is this? Explain why the angle is not congruent to ∠11
What is the alternate exterior angle of ∠11?
[tex]\angle 1 \cong \angle 7 \text { and } \angle 4 \cong \angle 6[/tex]
The number of sides in the given polygon is, n=11 . The sum of all exterior angles is 360o .
An exterior angle of a triangle is created by extending one side of the triangle. The angle between the extended side and the side next to it is called an exterior angle.
What is a alternate exterior?
Alternate Exterior Angles: The pair of angles on the outside of the two parallel lines but on the other side of the transversal are known as alternate exterior angles.
Look at the area above and below the crossed lines to find outside angles. Look at that outside area for each crossed line on different sides of the transversal to locate alternative outside angles. We assume you stated that the external angles are 1, 2, 7, and 8.
When a transversal connects two coplanar lines, alternate interior angles are created. They are located on the transverse sides of the parallel lines, but on the inner side of the parallel lines. At two different locations, the transversal passes through the two lines that are coplanar.
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Rebecca ran 12 1/4 miles in 2 1/2 hour. What was her average speed in miles per hour?
a. 4.9 mph
c. 30.625 mph
b. 4.8 mph
d. 5.5 mph
Answer: A
Step-by-step explanation: Divide your miles by hour hours:
12.25/2.5 = 4.9
Her average speed was 4.9 miles per hour
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an electronics store makes a profit of 30$ for every portable DVD player sold and 60$ for every DVD recorder sold. the manager’s target is to make at least 250 dollars a day on sales of portable DVD players and DVD recorders write an inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target let p represent the number of portable DVD players and r represent the number of DVD recorders.
An inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target is 30p+60r≥250.
What is meant by inequality?An inequality in mathematics is a comparison between two numbers or other mathematical expressions that is done in an unfair manner. On the number line, it is most typically used to compare the sizes of two numbers.
A and b are not equal in either situation. These interactions are recognized as robust inequalities.
Given,
Profit gained by selling portable DVD player=$30
Profit gained by selling portable DVD recorder=$60
Let,
The number of portable DVD player=p
The number of DVD recorders=r
And also given that,
The profit must be at least $250.
Therefore, 30p+60r≥250
Hence, an inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target is 30p+60r≥250.
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Here is a system of equations.
y=2x-2
y=2x-1
Graph the system. Then write its solution. Note that you can also answer "No solution" or "Infinitely many" solutions.
For the system of equations y = 2x -2 and y = 2x - 1, There is no solution.
What is an equation?An equation is a combination of different variables, in which two mathematical expressions are equal to each other.
The given pair of set of equations,
y = 2x -2,
y = 2x - 1.
The graph of the equations is shown below,
To find the solution for the equations,
The value of x and y can not be determined because lines are parallel to each other.
Therefore, Equations have no solution.
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