Given:
A parallelogram must be a rectangle.
If the diagonals are congruent then the parallelogram must be a rectangle.
Option B is the final answer.
-√3+0= -√3
Commutative property of addition
Additive identity Commutative property of multiplication
Multiplicative identity
The most appropriate choice for properties of addition will be given by-
The correct option will be additive identity
What is addition and its properties?
To find the total of two or more numbers, addition is used
There are some properties of addition
Let a, b and c be three numbers
1) Commutative property
The value of a + b is same as the value of b + a
a + b = b + a
2) Associative property
On adding more than two numbers, changing of bracket is permissible.
(a + b) + c = a + (b + c).
3)Additive identity
There is a number called additive identity. If any number is added to the additive identity, we will get back the same number. Here, 0 is the additive identity
a + 0 = a
4) Additive Inverse
Every number has an additive inverse.
On adding a number with the additive inverse, the result will be additive identity.
-a is the additive inverse of a
a + (-a) = 0
Here,
[tex]-\sqrt{3}+0=-\sqrt{3}[/tex]
0 is the additive identity
So this is the case of additive identity.
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help me please
thank you
Answer:
Domain: A, [tex][1, \infty)[/tex]
Range: A, [tex][-4, \infty)[/tex]
Step-by-step explanation:
The domain is the set of x-values and the range is the set of y-values.
Rachel's garden is square in shape. The area of the garden is36 ft? What is the length of one side of the garden?
1) If Rachel's garden is a square and the area is mentioned, let's use the area of the square.
S= l²
36 =l²
Flipping it:
l²=36
l=√36
l=6
2) So the length of Rachel's garden is 6 feet.
find AB 15 8 A-3 and - 1:03:36:13 : C12
Given :
[tex]\begin{gathered} A=\begin{bmatrix}1 & {2} & {} \\ {3} & {4} & \end{bmatrix} \\ B=\begin{bmatrix}{6} & {7} & {} \\ {5} & {8} & \end{bmatrix} \end{gathered}[/tex]So,
[tex]AB=\begin{bmatrix}{1} & {2} & {} \\ {3} & {4} & {}\end{bmatrix}\begin{bmatrix}{6} & {7} \\ {5} & {8}\end{bmatrix}=\begin{bmatrix}{c11} & {c12} \\ {c21} & {c22}\end{bmatrix}[/tex]c11 = row 1 column 1 = 1 * 6 + 2 * 5 = 6 + 10 = 16
c12= row 1 column 2 = 1 * 7 + 2 * 8 = 7 + 16 = 23
c21 = row 2 column 1 = 3 * 6 + 4 * 5 = 18 + 20 = 38
c22 = row 2 column 2 = 3 * 7 + 4 * 8 = 21 + 32 = 53
The indoor climbing gym is a popular field trip destination. This year the senior class at High School A and the senior class at High School B both planned trips there. The senior class at High School A rented and filled 8 vans, v, and 3 buses, b, with 242 students. High School B rented and filled 2 vans and 6 buses with 260 students. Every van had the same number of students in it as did the buses. How many students can a van carry? How many students can a bus carry?
Solution:
We would start by analyzing the statements;
High School A rented and filled 8 vans, v, and 3 buses, b, with 242 students. Mathematically;
[tex]8v+3b=242.........equation1[/tex]High School B rented and filled 2 vans, v, and 6 buses, b, with 260 students. Mathematically;
[tex]2v+6b=260...............equation2[/tex]Now, we would solve equation 1 and equation 2 simultaneously.
From equation 2;
[tex]\begin{gathered} 2v+6b=260 \\ \\ \text{ Divide through by 2;} \\ \frac{2v}{2}+\frac{6b}{2}=\frac{260}{2} \\ \\ v+3b=130 \\ \\ v=130-3b..........equation3 \end{gathered}[/tex]Substitute equation 3 in equation 1;
[tex]\begin{gathered} 8(130-3b)+3b=242 \\ \\ 1040-24b+3b=242 \\ \\ 1040-242=24b-3b \\ \\ 798=21b \\ \\ b=\frac{798}{21} \\ \\ b=38 \end{gathered}[/tex]Substitute the value of b in equation3;
[tex]\begin{gathered} v=130-3(38) \\ \\ v=16 \end{gathered}[/tex]ANSWERS:
[tex]\begin{gathered} \text{ High School A: }8v+3b=242 \\ \\ \text{H}\imaginaryI\text{gh School B: 2}v+6b=260 \\ \\ \text{ Van: \$}16 \\ \\ \text{ Bus: \$}38 \end{gathered}[/tex]Patrick rolls a die. What is the probability that he rolls an 1, 3 or 5?
The total possible outcomes of a dice are: 1,2,3,4,5 and 6.
There are 6 possible outcomes, all with equal probability.
Then, as all the outcomes have the same probability, we have to calculate what is the probability of having one ot three specific outcomesout of the possible 6 outcomes.
We can calculate this as:
[tex]P=\frac{\#\text{success outcomes}}{\#\text{possible outcomes}}=\frac{3}{6}=\frac{1}{2}=0.5=50\text{ \%}[/tex]Answer: P(1,3, or 5) = 1/2 = 0.5 = 50%
Mark’s model train can go 12 laps around its track in 4 minutes. If it runs at the same speed, how many laps can the train go in 9 minutes?Rate needed (laps/minutes)Unit RateInterpretation of unit rateExplain your thinking/Justifying your reasonSolution
rate = 12 laps/4 min = 3 laps/min
3 laps ------------------ 1 min
x ------------------ 9 min
x = (9 x 3) / 1
x = 27 laps in 9 min
Result 27 laps in 9 min
The graph of a piecewise function, f x( )is plotted in Figure 1. Discuss the continuity of f x( )at x =−1using the continuity test
the graph is not continuous at x=-1
[tex]\lim _{x\rightarrow-1^-}f(x)\ne\lim _{x\rightarrow-1^+}f(x)\ne f(-1)[/tex]A small tabletop is 3/4 ft by 3 1/2 ft. Rita solves 3/4⋅3 1/2 to find the area of the tabletop in square feet. Choose numbers to complete Rita's calculations for the area.
Number which represents the area of table top which has measures of 3/4 ft by 3 1/2 ft is equal to 21/8 square feet.
As given,
Measures of a small tabletop is equal to 3/4 ft by 3 1/2 ft
length=3 1/2 ft
=7/2 ft
Width=3/4 ft
Formula used to measure area of the small tabletop is equal to
=Length ×width
Substitute the values in formula to get a number which represents the area of small tabletop :
Area=(3/4) × (7/2)
=21/8 square feet
Therefore, number which represents the area of table top which has measures of 3/4 ft by 3 1/2 ft is equal to 21/8 square feet.
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Identify the vertex and the axis of symmetry of the parabola. Identify pointscorresponding to P and Q.(1, 1), x = 1P'(2, 2), Q'(-1.5)(1, 1). x = 1P'(0, 2), Q'(2.0)(1, 1), x = 1P(2.2), Q1-1,5)(1, 1), x = 1PO, 2). Q'12,0)
The vertex is the minimum/maximum point of the parabola.
This parabola has a dip, minimum point.
Looking at the coordinates, the vertex is at:
Vertex = (1,1)
The axis of symmetry is always the x-coordinate of the vertex coordinate.
That is x = 1.
So,
Axis of Symmetry:
x = 1
Now,
Since x = 1 (vertical line) is the axis of symmetry, we reflect the points P and Q about this line and find the points P' and Q'.
P' = (2,2)
Q' = (-1,5)
There are three groups in a community. Their demand curves for public television in hours of programming, T, are given respectively by Wy = 200-T W2 = 240-T W3 = = 320-T Suppose public television is a pure public good that can be produced at a constant marginal cost of $200 per hour. What is the efficient number of hours of public television?
In such a competitive private market, 80 hours of programming would be available.
What is defined as the Marginal Social Benefit?The marginal social benefit is the difference with in benefits of consuming one more unit of a product or service. It is determined by the amount of money individuals are inclined to pay for an extra unit of a good or service. When marginal benefit corresponds marginal cost for all groups, the efficient amount of hours of public television is reached.For the given question;
Marginal social benefit = Addition of all groups with in community.
MSB = W1 + W2 + W3
MSB = ($200 - T) + ($240 - 2T) + ($320 - 2T)
MSB = $200 + $240 + $320 - T - 2T - 2T
MSB = $760 - 5T
Calculate efficient number of hours for the public television:
MSB = MC
$760 - 5T = $200
$760 - $200 = 5T
5T = $560
T = 112 hours for the programming.
b. For $200 per hour,
Demand for group 1:
Private marginal benefit = Private marginal cost
$200 - T = $200
T = 0 hours for the programming.
Demand for group 2:
$240 - 2T = $200
$240 - $200 = 2T
$40 = 2T
T = 20 hours for the programming.
Demand for group 3:
$320 - 2T = $200
$320 - $200 = 2T
$120 = 2T
T = 60 hours for the programming.
Hours of television = group 1 + group 2 + group 3
Hours of television = 0 + 20 + 60
Hours of television = 80 hours
Thus, in such a competitive private market, 80 hours of programming would be available.
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The sum of two numbers is 6. If one number is subtracted from the other, the result is 2. Find the numbers.
The Weasley brothers estimate that they will need a thousand galleons just to set up their joke shop, Weasley's Wizarding Wheezes. The first products they are manufacturing are pygmy puffs, and they realize that the cost of making a single box of pygmy puffs is 3 galleons. The brothers would like to estimate the cost, in galleons, of setting up their shop and creating pygmy puffs, as a function of the number of boxes of pygmy puffs produced, p. Which of the following equations is the correct equation representing this scenario?
1. ()=3−1000
2. ()=3+1000
3. ()=1000−3
4. ()=1000+3
The most appropriate choice for linear equation will be given by -
Total cost of setting up their shop and creating pygmy puffs, as a function of the number of boxes of pygmy puffs produced, p
C(p) = 3p + 1000
Second option is correct
What is linear equation?
Equation shows the equality between two algebraic expressions by connecting the two algerbraic expressions by an equal to sign.
A one degree equation is known as linear equation.
Here,
Initial cost of manufacturing Weasley's Wizarding Wheezes by the Weasley brothers = 1000 galleons
Cost of producing one pygmy puff = 3 galleons
Cost of producing p boxes of pygmy puffs = 3p galleons
Total cost of setting up their shop and creating pygmy puffs, as a function of the number of boxes of pygmy puffs produced, p
C(p) = 3p + 1000
Second option is correct
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Complete Question
The Weasley brothers estimate that they will need a thousand galleons just to set up their joke shop, Weasley's Wizarding Wheezes. The first products they are manufacturing are pygmy puffs, and they realize that the cost of making a single box of pygmy puffs is 3 galleons. The brothers would like to estimate the cost, in galleons, of setting up their shop and creating pygmy puffs, as a function of the number of boxes of pygmy puffs produced, p. Which of the following equations is the correct equation representing this scenario?
1) C(p) = 3p - 1000
2) C(p) = 3p + 1000
3) C(p) = 1000p - 3
4) C(p) = 1000p + 3
no solution one solution infinitely many solutions 3x + 7 = 14 + 3x 22x + 11 = 4x - 7 3(x + 2) = 3x + 6
no solution one solution infinitely many solutions
3x + 7 = 14 + 3x
22x + 11 = 4x - 7
3(x + 2) = 3x + 6
Part 1
we have
3x + 7 = 14 + 3x
solve for x
3x-3x=14-7
0=7 -----> is not true
that means
No solution
Part 2
we have
22x + 11 = 4x - 7
solve for x
22x-4x=-7-11
18x=-18
x=-1
so
One solution
Part 3
we have
3(x + 2) = 3x + 6
solve for x
Divide by 3 both sides
x+2=x+2 -----> its a identity
that means
infinitely many solutions
Solve for the missing length using trig. Use the calculator below to help you. Round your answer to the nearest tenth. The reference angle measures 190.
As shown in the figure : we have a right angle triangle
We need to find the value of x
The hypotenuse of the triangle = 29
And x represents the opposite side of the angle 19
So,
[tex]\begin{gathered} \sin 19=\frac{opposite}{hypotenuse} \\ \\ \sin 19=\frac{x}{29} \\ \\ x=29\cdot\sin 19\approx9.44 \end{gathered}[/tex]rounding the answer to the nearest tenth
So,
[tex]x=9.4[/tex]Which graph represents the solution set to the system of inequalities? y < -3/4x + 1y > 2/3x - 3
Since both inequalities don't have the equal to symbol (≤) Both lines must be dashed lines.
So, the top right option can't be.
Now we have 3 options:
If we graph the inequality: y < -3/4x + 1
It has a slope of -3/4 and a y-intercept on 1.
The only available option that represents this inequality is the right bottom one.
Which set of ordered pairs does not represent a function? o{(-5,-2),(3,-2),(5,-9), (6, -7)} o{(-1, -3),(-4,9), (-7,2), (-3,9)} O {(4,5),(-8,-6), (-7,-1), (6,-1)} o {(-4,-9), (-4,4),(-2,2), (9,5)} Submit Answer
{(-4,-9), (-4,4),(-2,2), (9,5)}
Because the x values of -4 occurs more than once, the set of ordered pairs is not a function.
Devaugn’s age is three times Sydney’s age. The sum of their ages is 52. What is Sydney’s age?Solve by using linear equation.
ANSWER:
13 years old
STEP-BY-STEP EXPLANATION:
Let x be Devaugn's age and y be Sydney's age.
We establish the following linear equation system:
[tex]\begin{gathered} x=3y \\ x+y=52 \end{gathered}[/tex]We solve the first equation in the second equation:
[tex]\begin{gathered} 3y+y=52 \\ 4y=52 \\ y=\frac{52}{4} \\ y=13 \end{gathered}[/tex]Which means Sydney's age is 13 years old.
V is the midpoint of UW. If UV = 2x and VW = x + 8,what is UV?
Please explain and show work
Based on the definition of the midpoint of a line segment, the length of UV is determined as: 16 units.
What is the Midpoint Definition of a Segment?The midpoint of a segment is defined as the point on a line segment where the line segment is bisected into two equal smaller segments. The length of the smaller segments formed will be equal to each other.
Given that V is the midpoint of segment UW, it means that V divides segment UW into two equal smaller segments, UV and VW.
UV = 2x
VW = x + 8
Therefore:
UV = VW
Substitute
2x = x + 8
2x - x = x + 8 - x [subtraction property of equality]
x = 8
Find the length of UV:
UV = 2x
Plug in the value of x
UV = 2(8)
UV = 16 units.
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i have a hard time in school can some one pls tell me what this is
Answer: 17 1/3
Step-by-step explanation: hope this helps!
What is the equation of the line that passes through the point (-6,5) and has a slope of -\frac{1}{6}
?
HELP
The equation of the line with point (-6,5) and slope as -1/6 in slope intercept form is y=-1x/6+6
Given, the equation of the line passes through the point (-6,5)
and has a slope of -1/6.
point (-6,5) = (x₁,y₁)
slope (m)= -1/6
equation of the line is :
y-y₁=m(x-x₁)
substitute the values in the above formula:
y-5=(-1/6)(x-(-6)
y-5=-1x/6+6/6
y-5=-1x/6+1
y=-1x/6+1+5
y=-1x/6+6
Hence the equation of the line is y=-1x/6+6.
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Mateo says that 6⁸÷3⁴= 64 or 1,296 by applying the Quotient of Powers Law. Is Mateo correct? Explain.
Answer:
6⁸÷3⁴ = 20736
Step-by-step explanation:
[tex]6^8\div3^4[/tex][tex]= (2\times 3)^8\div3^4[/tex][tex]= 2^8 \times 3^8\div3^4[/tex][tex]= 2^8 \times 3^{8-4}[/tex][tex]= 2^8 \times 3^{4}[/tex][tex]= 256 \times 81[/tex][tex]6^8\div3^4= 20,736[/tex]So, 6⁸÷3⁴ is neither equal to 64 nor 1296. It is equal to 20,736.An ice cream shop has 12 flavors of ice cream. How many ways can you choose three different flavors for a sundae?
Answer:
chose your top 3 flavors
∠A and ∠B are vertical angles. If m∠A = (7x-6)° and m∠B = (8x-27)°, then find the measure of ∠B
Vertically opposite angles are equal
Therefore,
[tex]\begin{gathered} \angle A=\angle B \\ m\angle A=7x-6 \\ m\angle B=8x-27 \\ 7x-6=8x-27 \\ 7x-8x=-27+6 \\ -x=-21 \\ x=21 \\ \angle B=8(21)-27=168-27=141\text{ degre}e \end{gathered}[/tex]A group of 45 people attended a ball game. There were twice as many children as adults in the group, Set up a system of equations that represents the numbers of adults and children who attended the game and solve the system to find the number of children who were in the Group
Answer:
There are 15 adults and 30 children
Step-by-step explanation:
Hey there!
Setting up the system of equations
----------------------------------------------------------------------------------------------------------
Lets first set a variable for the children and adults
Children - x
Adults - y
x + y = 45
x = 2y
----------------------------------------------------------------------------------------------------------
Solving the system of equations
----------------------------------------------------------------------------------------------------------
We can use substitution
(2y) + y = 45
3y = 45
y = 15
This means, there are 15 adults
Now we plug in this information
x = 2y
x = 2(15)
x = 30
This means, there are 30 children
----------------------------------------------------------------------------------------------------------
So, there are 15 adults and 30 children
I need help with questions 5 and 6 the one with the graph?
From the table it can be seen that when r=3, V(r=3) =113
On the other hand, when r=7, V(r=7)=1436 and when r=2, V(2)=33.5, therefore,
[tex]\begin{gathered} V(7)-V(2)=1436-33.5 \\ =1402.5 \end{gathered}[/tex]If f(x)=sqrt x-x and g(x)+2^3-sqrt x-x, find f(x)-g(x)
Answer:
A
Step-by-step explanation:
f(x) - g(x)
= [tex]\sqrt{x}[/tex] - x - (2x³ - [tex]\sqrt{x}[/tex] - x) ← distribute parenthesis by - 1
= [tex]\sqrt{x}[/tex] - x - 2x³ + [tex]\sqrt{x}[/tex] + x ← collect like terms
= - 2x³ + 2[tex]\sqrt{x}[/tex]
hi, I nee help with this, I don't know if my answer is correct! it would be helpful if you told me which one it is and than do your explaination if that's possible, it's just more convenient for me!
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion. In other words, similar triangles are the same shape, but not necessarily the same size.
therefore, in this case we can see that the triangles have an equal angle and their sides are similar.
PLS HELP!!
The equation for the graph is:
y>x-4.
y≤x-4.
y
None of the choices are correct.
The correct option for the equation of line is; y ≥ x - 4.
What is termed as the equation of line?A line's equation can be formed using the slope of a line and a point just on line. The slope of a line is its inclination with respect to the positive x-axis, and it is represented as a numeric integer, small percentage, or the tangent of a angle it makes with respect to the positive x-axis. The term "point" refers to a coordinate system point with the x and y coordinates.For the given question;
Consider two points lying on the line.
(x₁, y₁) = (4, 0)
(x₂, y₂) = (0, -4)
The, the slope of the line is found using;
slope = m = (y₂ -y₁)/(x₂ - x₁)
m = (-4 - 0)/(0 - 4)
m = 1
Now, the standard form of equation of line is;
y - y₁ = m(x - x₁)
Put the values,
y - 0 = 1(x - 4)
y = x - 4
As, the origin of the coordinates axis and the shaded portion lies on the opposite side of the line, thus the inequality used is greater than equal to.
y ≥ x - 4
Thus, equation of line obtained for the given graph is y ≥ x - 4.
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In a bag of Jolly Ranchers, the ratio of blue to red is 3 to 4. If I have a TOTAL of 56 Jolly Ranchers, how many of them are blue?
Answer: 24
Step-by-step explanation:
