Given the function:
\(F(x)=\frac{1}{2}(4-x)\)when we evaluate F(3) we have:
\(F(3)=\frac{1}{2}(4-3)=\frac{1}{2}(1)=\frac{1}{2}\)therefore, F(3)=1/2
Answer:
.5
Step-by-step explanation:
You're just replacing the x with 3.
Rachel Plant has $28,000 invested in stock A and stock B. Stock A currently sells for $20 a share and stock B sells for $80 a share. If stock B doubles in value and stock A goes up 50%, her stock will be worth $54,000. How many shares of each stock does she own?
Answer:
A= 66.6667
B = 333.3333
Step-by-step explanation:
Initial value of A = $20
Initial value of B = $80
Initial total=$ 28000
A moves up 50%= 20+(0.5*20)
A moves up 50% = 20+10
A moves up 50% =$ 30
B double it values = $80*2
B double it values = $160
Now total value is = $54000
A20+B80= 28000... equation 1
A30+B160= 54000.... equation 2
Multiplying equation 1 * 2
Multiplying equation 2 * 1
A40 +B160 = 56000
A30+B160= 54000
A30 = 2000
A= 2000/30
A= 200/3
A= 66.6667
A20+B80= 28000
Substituting A
200/3 (20) +B80= 28000
B80= 28000-4000/3
B80= 80000/3
B= 80000/240
B = 333.3333
what is the perimeter of 6mm and 6mm
Answer:36mm
Step-by-step explanation:
6 times 6 equals 36
36 is the perimeter
Determine the value of x 4/5(x+9) - 1/5x=3/5(x+12)
Answer:
infinite number of solutions
Step-by-step explanation:
\(\frac{4}{5}\) (x + 9) - \(\frac{1}{5}\) x = \(\frac{3}{5}\) (x + 12)
multiply through by 5 to clear the fractions
4(x + 9) - x = 3(x + 12) ← distribute parenthesis on both sides
4x + 36 - x = 3x + 36
3x + 36 = 3x + 36
since both sides are the same then any value of x will make the equation true.
Thus there are an infinite number of solutions
11. Patrick needs to walk from his cabin to the firepit. He can walk directly from his cabin to the firepit or walk to the dock then to the firepit. Which path is the shorter route? Justify your response.
The shorter distance he can take if directly from cabin to firepit that is 1.41x.
What is trigonometry?Trigonometry is a branch of mathematics that focuses on the study of the relationships between the sides and angles of triangles. It is based on the fact that the ratios of the lengths of the sides of a right-angled triangle are always constant, regardless of the size of the triangle. Trigonometry involves the use of several mathematical functions such as sine, cosine, and tangent, which are defined based on the ratios of the sides of a right triangle. For instance, the sine of an angle is defined as the ratio of the length of the opposite side to the length of the hypotenuse, while the cosine is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.
Here,
Let x be he distance from firepit to dock, y be the distance from dock to cabin and z be the distance from firepit to cabin.
tan 45=1
x/y=1
x=y
sin 45=1/√2
x/z=1/√2
z=x√2
Total distance:
Path 1: Patrick walks directly from his cabin to the firepit, so the distance he walks is z.
z=x√2
z=1.41x
Path 2: Patrick walks from his cabin to the dock, and then from the dock to the firepit. The distance he walks is y + z.
=x+y
=2x
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Part 22. NO LINKS!!!! What is the area of this figure?
Answer:
479 yd²Step-by-step explanation:
To solve this question, I have divided the shape into squares and rectangles. Then, I found out the area of each square and rectangle. Lastly, I added up all the areas and found the area of the shape. Please consider looking at the picture uploaded to understand better.
When looking at the picture, we can say that the area is 55 + 120 + 304.
=> 55 + 120 + 304=> 175 + 304=> 479 yd²Hence, the area of the shape is 479 yd².
match each statement to the reasons for the geometric proof. Part 3
9514 1404 393
Answer:
4 1 5 3 6 2
Step-by-step explanation:
The general approach to this proof is to show the triangles created by the diagonal are congruent. Then, parts of those triangles (opposite sides) are congruent. The congruence of the triangles is shown by making use of the fact that alternate interior angles are congruent, and the diagonal is congruent to itself. Thus, you have two angles and the side between shown as congruent, and can invoke the ASA postulate.
The steps of the proof (1 to 6) are already in order. The task is to find the geometric relation the step is describing from the list on the left.
__
Statements A to F on the left match with numbered statements 1 to 6 on the right as follows:
A - 4 (reflexive prop)
B - 1 (given)
C - 5 (ASA)
D - 3 (alt int angle)
E - 6 (the end point of the proof)
F - 2 (definition)
Evaluate the function for x = -4n.
Ax)= 47° - 50
A. -64n2 + 20n
B.
64n" + 20x
C. -64n? - 20n
D. 64n2 – 202
What is the equation for this word problem?:
Ravi needs to read 3 novels each month.
Let N be the number of novels Ravi reads in M months
Help!
Answer:
N = 3M
Step-by-step explanation:
What is the slope of the following line?
Answer:c, the answer is c
Step-by-step explanation:
NO LINKS!!! URGENT HELP PLEASE!!!
Please help me with #20, 22, and 24
Answer:
see the work below
Step-by-step explanation:
20.) x = √32²+32² = √2048 = 45.25
y = 32(sin60) = 27.7
z = 32(cos60) = 16
22.) x = 7√3 / cos60 = 24.25 = 14√3
y = 14√3 / tan30 = 42
sin30 = 14√3 / (z+7√3)
z + 7√3 = 14√3 / sin30
z = 14√3/√sin30 - 7√3 = 36.37 = 21√3
24.) z = 18(tan30) = 10.4
h = √10.4² + 18² = √432 = 20.785
x = y
2x² = 20.785²
x = √20.785²/2 = 14.7
y = 14.7
Answer:
Question 20:
x = 32√2 unitsy = 16√3 unitsz = 16 unitsQuestion 22:
x = 14√3 unitsy = 42 unitsz = 21√3 unitsQuestion 24:
x = 6√6 unitsy = 6√6 unitsz = 6√3 unitsStep-by-step explanation:
45-45-90 triangleA 45-45-90 triangle is a special right triangle where the measures of its sides are in the ratio 1 : 1 : √2. Therefore, the formula for the ratio of the sides is b : b : b√2 where:
b is each side opposite the 45 degree angles (legs).b√2 is the side opposite the right angle (hypotenuse).30-60-90 triangleA 30-60-90 triangle is a special right triangle where the measures of its sides are in the ratio 1 : √3 : 2. Therefore, the formula for the ratio of the sides is c: c√3 : 2c where:
c is the shortest side opposite the 30° angle.c√3 is the side opposite the 60° angle.2c is the longest side (hypotenuse) opposite the right angle.Question 20Side x is the hypotenuse of a 45-45-90 triangle with congruent legs measuring 32 units. Therefore b = 32.
\(\implies x=b\sqrt{2}=32\sqrt{2}\; \sf units\)
Side y is the side opposite the 60° angle in a 30-60-90 triangle with a hypotenuse of 32 units. Therefore, 2c = 32 so c = 16.
\(\implies y = c\sqrt{3}=16\sqrt{3}\; \sf units\)
Side y is the side opposite the 30° angle in the same 30-60-90 triangle.
\(\implies z=c = 16\; \sf units\)
Question 22Side x is the hypotenuse of a 30-60-90 triangle with the leg opposite the 30° angle measuring 7√3 units. Therefore c = 7√3.
\(\implies x=2c=2 \cdot 7 \sqrt{3}=14\sqrt{3}\; \sf units\)
Therefore, other leg of the same triangle (opposite the 60° angle) measures c√3 = 7√3 · √3 = 21 units.
Side y is the hypotenuse of a 30-60-90 triangle with the leg opposite the 30° angle measuring 21 units. Therefore c = 21.
\(\implies y=2c=2 \cdot 21 = 42\; \sf units\)
Side z is the leg of the same 30-60-90 triangle opposite the 60° angle.
\(\implies z=c\sqrt{3}=21\sqrt{3}\; \sf units\)
Question 24Side z is the side opposite the 30° angle in a 30-60-90 triangle with the other leg (opposite the 60° angle) measuring 18 units. Therefore, c√3 = 18, so c = 18/√3 = 6√3 units.
\(\implies z=c = 6\sqrt{3}\; \sf units\)
Therefore, the hypotenuse of the same triangle measures 2c = 12√3 units.
Sides x and y are the congruent legs of a 45-45-90 triangle with hypotenuse measuring 12√3 units. Therefore b√2 = 12√3, so b = 6√6.
\(\implies x=6 \sqrt{6}\; \sf units\)
\(\implies y=6 \sqrt{6}\; \sf units\)
Four different stores have sales on the same stickers.
Which deal gives the customer the best price per sticker?
A. 2 stickers for 25 cents
B. 3 stickers for 39 cents
c. 4 stickers for 80 cents
D. 5 stickers for 63 cents
If 2x - 3y = 24 and 3x + 4y = 2, what is the value of x - y?
Answer:
2x-3x=24____eqn 1
3x+4y=2____eqn 2
solve eqn 1 and 2 simultaneously using elimination method
eliminate x use the coefficients of x in the two equations to multiply each other i.e
3(2x-3y=24)
2(3x+4y=2)
6x-9y=72
6x+8y=4
eliminate x using the subtraction sign(-)
6x-6x-9y-(+8y)=72-4
-9y-8y=68
-17y=68
divide both side by the coefficient of y
y=68/-17
y=-4
put y=-4 in eqn 2
3x+4y=2
3x+4(-4)=2
3x-16=2
collect like term
3x=2+16
3x=18
divide both side by the coefficient of x
x=18/3
x=6
since we're asked to find x-y
6-(-4)
6+4=10
for any relation r, if, for every valid instance of a, that value of a uniquely determines the value of b:
"In a relation r, for every instance of a, that value of a uniquely determines the value of b then a primary dependency exists in the relation.
Relation:
In math relation means the relationship between sets of values of ordered pairs.
Given,
Here we need to find if for every valid instance of a, that value of a uniquely determines the value of b in the relation.
As per the definition of relation, for every relation has two set of data ad each of the element in one set is uniquely refers the other one's element.
Here we have to identify the type of relation between a an b.
Here we have given that the relation a uniquely determines the value in b.
So, this type primarily refers the dependency of the relation.
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Order of operations 8x18/4+15
Answer:
8×18=144
4±15=19
144÷19
7.579 answer
write an equations in slope-intercept form of the line that passes through the point(5,9) with slope 7
Answer:
\(y=7x-26\)
Step-by-step explanation:
1) Write it in the slope-intercept form of \(y=mx+b\), where m is the slope and b is the y-intercept.
\(y=7x +c\)
2) Substitute the given coordinates into \(y=7x +b\), and then solve for c.
\(9=7(5) +b\\9=35+b\\9-35=b\\b= -26\)
3) Substitute c into \(y=7x +b\)
\(y=7x-26\)
Therefore, the answer is \(y=7x-26\).
mega mart sells a large 5kg cake for $2500 while a 2kg chocolate cake cost $1200 what is the cheapest price sam would payfor 10kg of cake for the party
The cheapest price Sam would pay for 10kg of cake for the party is $5000 from Mega Mart.
To find the cheapest price Sam would pay for 10kg of cake for the party, we need to compare the prices of the available cakes and determine the most cost-effective option.
At Mega Mart, a 5kg cake costs $2500.
Therefore, the price per kilogram for this cake is:
Price per kilogram at Mega Mart = $2500 / 5kg = $500/kg.
At the same time, a 2kg chocolate cake costs $1200.
So, the price per kilogram for this cake is:
Price per kilogram for the chocolate cake = $1200 / 2kg = $600/kg.
Now, let's calculate the total price for 10kg of cake from each option:
Total price at Mega Mart for 10kg = $500/kg \(\times\) 10kg = $5000.
Total price for 10kg of chocolate cake = $600/kg \(\times\) 10kg = $6000.
Comparing the two options, we see that the Mega Mart cake is the more cost-effective choice.
Sam would pay a total of $5000 for 10kg of cake from Mega Mart, whereas the chocolate cake would cost $6000 for the same quantity.
Therefore, the cheapest price Sam would pay for 10kg of cake for the party is $5000 from Mega Mart.
In summary, Sam would pay the cheapest price of $5000 to purchase 10kg of cake for the party from Mega Mart.
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#3 Preimage point B is
located at (5,-4).
B' is located at (20, -16).
Write the algebraic rule for
the transformation.
The algebraic rule for the transformation is B' = (Bx + 15, By - 12)
Given data ,
To determine the algebraic rule for the transformation from point B to point B', we need to find the equations that relate the coordinates of the preimage point B to the image point B'.
Let's denote the translation amounts in the x-direction and y-direction as (dx, dy). The coordinates of B' can be obtained by adding these translation amounts to the coordinates of B:
B' = (Bx + dx, By + dy)
Given that B is located at (5, -4) and B' is located at (20, -16), we can calculate the translation amounts:
dx = 20 - 5 = 15
dy = -16 - (-4) = -12
Hence , the algebraic rule for the transformation is B' = (Bx + 15, By - 12)
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Which equation is represented by the table?
Which expression has a positive quotient?
Answer:
where are the expressions?
Step-by-step explanation:
Best answer gets brainlist, do a and b, explain
The volume of A and B are 28m³ and 16m³ respectively.
How to determine the volumeFor volume of A
The formula for volume of a cuboid is given as:
Volume = length × width × height
Substitute the values
Volume = 7 × 2 × 2
Volume = 28m³
For cuboid B
Volume = length× width × height
Substitute the values
Volume = 4 × 2 × 2
Volume = 16m³
Thus, the volume of A and B are 28m³ and 16m³ respectively.
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HELPP
You want to enclose a rectangular region with an area of
1200 square feet and a length of 40 feet, 50 feet, or 60 feet.
Find the perimeter for each possible region. Explain why
you might rewrite the area formula to find the solutions.
The possible perimeters are 140 feet, 148 feet and 160 feet.
In order to determine the width that would be used to determine the possible perimeters, the formula for the area would have to be rewritten.
What are the possible perimeters?A rectangle is a 2-dimensional quadrilateral with four right angles and two diagonals that bisect each other at right angles.
Area of a rectangle = length x width
Width = area / length
1200 / 40 = 30 feet
1200 / 50 = 24 feet
1200 / 60 = 20 feet
Perimeter of a rectangle = 2 x (length + width)
Perimeter when width is 30 feet : 2(40 + 30) = 140 feet
Perimeter when width is 24 feet : 2(24 + 50) = 148 feet
Perimeter when width is 20 feet : 2 (20 + 60) = 160 feet
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if the distance between sydney and goulburn is 200km, find the average speed to complete the journey in 2 hours and 30 minutes
Answer:
80 km/h
Step-by-step explanation:
2 h 30 min = 2.5 h
Average speed = distance/time= 200 km/2.5 h = 80 km/h
Marbleslides: Lines
Answer:
ok
Step-by-step explanation:
The graph of the function B is shown below. If B(x) = -1, then what is x? -1 1 2 NEXT QUESTION
Answer:
x is -1/b yw
Step-by-step explanation:
The following equation represents the total distance (d) that the Benson family has traveled from their home, after traveling 100 miles to pick up their grandparents for a family vacation, given the time (t) traveled from the grandparents’ home and driving at a rate of 45 mph. Determine how far from their home the Bensons will be after 412 hours of driving with their grandparents.
d=45t+100
The distance at which the Benson family would be from home after 412 hours of driving according to the task content is; 18,640 miles.
How far from their home will the Bensons be after 412 hours of driving with their grandparents?It follows from the task content that the equation which models the distance of the Benson's family from home after a given time t is;
d = 45t +100
Hence, when t = 412 hours.
d = 45(412) + 100
d = 18540 +100
d = 18,640miles.
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Show ur
Work
And
Check it
Answer:
n = 14
Step-by-step explanation:
2 + n = 16
-2 -2
2 - 2 = 0
16 - 2 = 14
n = 14
个 == CR Algebra 1 B (GP) 21-22 / 8:Radical Expressions and Equations 104 6 2 -10-8-6 -4 - 2 0 N 4 6 8 10 2 -4 6 -8 -10 Match the graph with its function by translating the graph of y = Vx. 3. O y = √x-1+7 O y = x-7+1 = 7 O O y=√x+1+7 O y = x+7+1 Search the web and Windows a
SOLUTION
The transformation of the function
\(y=\sqrt[]{x}\)To give the graph in the question is as follows.
The graph is move to the left from the origin by 1 unit on the x-axis, which is to add 1 to x, we have
\(y=\sqrt[]{x+1}\)Also,
The graph is the move upward along the y-axis by 7 unit, which is addition of 7 to the function
Then, the equations becomes
\(y=\sqrt[]{x+1}+7\)Therefore
The function that produce the graph in the image is
y = (√x+1) + 7
A painter took 15 hours to paint 12 rooms in a building. Choose all true statements about the painter's rate of speed
Answer:
B and E
Step-by-step explanation:
15 divided by 12 is =1.25
1.25 ti.es 36 rooms =45 hours
What is the y-intercept of the graph of the line whose equation is y = -2/5x + 4?
1) - 5/2
2) - 2/5
3) 0
4) 4
I’ve been stuck on this question for so long I need help with it.
Answer:
4
Step-by-step explanation:
in y=mx+b, the "b" is the y-intercept
Answer:
4
it's in y = mx + b form, where b is the y-intercept
Determine whether the following event is mutually exclusive or not mutually exclusive.
Choosing a student who is a history major or a business major from a nearby university to participate in a research study. (Assume that each student only has one major.)
Answer:
Following are the solution to the given points:
Step-by-step explanation:
Both A and B are exclusive to each other because of P(A and B) = 0.
Therefore, Let A be the major in mathematics and B be the major in philosophy.
Each student is required to only have one major.
No student does have two significant students.
Therefore, the likelihood of both the major pupils being zero.
This is P(A and B) = zero
Therefore, The events are exclusive to each other.