Answers
Related Questions
Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set G= {1,2,3,4,5,6,7}. What is G
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Final answer:
The set G is a subset of the universal set U and contains the first seven natural numbers within U: {1,2,3,4,5,6,7}.
Explanation:
In mathematics, particularly in set theory, when we talk about the set G, we are referring to a collection of elements that are all part of a larger universal set, denoted by U. In your case, the universal set U is {1,2,3,4,5,6,7,8,9,10} and the set G is given as {1,2,3,4,5,6,7}. The set G contains the first seven natural numbers within the universal set.
Understanding the concept of the universal set and subsets is fundamental in set theory. The universal set is the set that contains all possible objects (usually numbers in this context) under consideration, and any other set is a subset if all its elements are also elements of the universal set. The subset G in your example is defined by explicitly listing its members, which are all part of the universal set U.
8 times the total of x and 3
Answers
Answer: The expression would be [tex]8x+24[/tex]
Step-by-step explanation:
Since we have given that
8 times the total of x and 3
total of x and 3 means sum of x and 3.
Mathematically it is expressed as
[tex]x+3[/tex]
Now, 8 times the above sum.
Mathematically, it is written as
[tex]8(x+3)\\\\=8x+24[/tex]
Hence, the expression would be [tex]8x+24[/tex]
a rectangular room measures 3.8 meters in length and 4.9 meters in width. Jana multiples both numbers together. Which expression would be best for her to use to check the reasonableness of her decimal multiplication?
A) 3x4
B)3x5
C)4x4
D)4x5
Answers
Answer:
d 4 x 5
Step-by-step explanation:
round
The graph of f(x) = x3 – 6x2 + 9x is shown. Based on the graph, what are the solutions of the equation x3 – 6x2 + 9x = 0? x = 3 x = –3, 0 x = 0, 3 x = –3, 0, 3
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f(x) = x3 – 6x2 + 9x
the solutions of the equation x3 – 6x2 + 9x = 0 are : 0 , 3
because : f(0) 0 and f(3) = 0
The solutions of the equations [tex]x^3-6x^2+9x=0[/tex] is:
x=0 or x=3
Step-by-step explanation:The solutions of the graph of the equation are the possible values of x at which the graph meets the x-axis at a point.
The function f(x) is given by:
[tex]f(x)=x^3-6x^2+9x[/tex]
The function f(x) could also be written as:
[tex]f(x)=x^3-3x^2-3x^2+9x\\\\i.e.\\\\f(x)=x^2(x-3)-3x(x-3)\\\\i.e.\\\\f(x)=(x^2-3x)(x-3)\\\\i.e.\\\\f(x)=x(x-3)(x-3)[/tex]
i.e. If
[tex]f(x)=0[/tex]
then
[tex]x(x-3)(x-3)=0\\\\i.e.\\\\x=0\ or\ x=3[/tex]
By the help of the graph we may observe that the function meets the x-axis at x=0 or x=3.
The water level of a river is 170 feet. The river recedes 4 feet each year. Ingrid claims that the equation that represents this scenario is y = 170x – 4. Is her equation correct? Explain
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Sample Answer: No, Ingrid is incorrect. The initial value in the scenario is 170 feet, which represents the y − intercept. Receding 4 feet in the scenario represents the rate of change, which is the slope. In slope-intercept form, y = mx + b, where m represents slope and b represents the y−intercept, so the correct equation is y = −4x + 170.
Answer:
No, Ingrid is incorrect. The initial value in the scenario is 170 feet, which represents the y − intercept. Receding 4 feet in the scenario represents the rate of change, which is the slope. In slope-intercept form, y = mx + b, where m represents slope and b represents the y−intercept, so the correct equation is y = −4x + 170.
Step-by-step explanation:
How to find csc theta where theta equals -120
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= -sin 60 = -sqrt3/2
csc is 1/sine so ur answer is -2/sqrt3
Answer:
[tex]\frac{-2}{\sqrt{3} }[/tex]
Step-by-step explanation:
Cosec of -120 is to be found out
We can do this in steps
cosec (-120) consider only the - sign.
This implies angle lies in IV quadrant and hence cosec is negative
cosec (-120) =-cosec (120)
Now 120 is written as 180-60
cosec (-120) =- cosec(180-60)
=-cosec 60
(since II quadrant cosec is positive)
= [tex]\frac{-2}{\sqrt{3} }[/tex]
does anyone know if this is correct or how to do this? (part a,b, and c)
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Part A you would use 200-L ( since you have 400 feet total 200 feet would equal length plus width)
Part B 200 - 80 = 120
Part C 200-90 = 110
area = 90 x 110 = 9900 square feet
Identify the x-intercept and y-intercept of the line
4x−2y=−12
4x−2y=−12
.
Select one:
a. The x-intercept is (0,-3) and the y-intercept is (6,0).
b. The x-intercept is (-3,0) and the y-intercept is (0,6).
c. The x-intercept is (4,0) and the y-intercept is (0,-2).
d. The x-intercept is (0,6) and the y-intercept is (-3,0).
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-2y = -4x - 12
y = 2x + 6
The y-intercept is b, in the equation y = mx + b.
So that means here the y-intercept is 6.
Now to get the x-intercept, you need to put the y at 0.
0 = 2x + 6
-6 = 2x
-3 = x
X-intercept is -3.
Also remember that the x and y intercepts look like this: (x, y). For the x-intercept, the y has to be at 0. For the y-intercept, the x has to be at 0.
So the answer is B.
The x-intercept is (-3,0) and the y-intercept is (0,6).
The correct option is B,
What are intercepts?The points where a line crosses an axis are known as the x-intercept and the y-intercept, respectively.
Given information:
4x - 2y = -12.
To find the x-intercept, we set y to zero and solve for x:
4x - 2y = -12
4x - 2(0) = -12
4x = -12
x = -3
So the x-intercept is (-3, 0).
To find the y-intercept, we set x to zero and solve for y:
4x - 2y = -12
4(0) - 2y = -12
-2y = -12
y = 6
So the y-intercept is (0, 6).
Therefore, the answer is b. The x-intercept is (-3,0) and the y-intercept is (0,6).
To learn more about the intercepts;
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Solve the equation 4(2y-6)+3=11. A.3. B.-3. C.4. D.5
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4(2y-6)+3=11
minus 3 both sides
4(2y-6)=8
divide both sides by 4
2y-6=2
add 6 to both sides
2y=8
divide both sides by 2
y=4
C is answer
Spencer Ward purchased a new riding mower for $1,989. He made a 15% down payment and financed the remainder. What amount did he finance?
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1,989×0.15=298.35
Amount financed is
1,989−298.35=1,690.65
Which inequality describes the graph?
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The line is the same in all answers, so you may look at the inequality signs. The shaded area is on top, this means greater than, and the line is not dashed, so it belongs to the solution: greater or equal than
Also, the division between the two is solid so it can be "equal to".
The answer is D
what is the equation of the graphed line in point-slope form?
A. y+3=2(x+3)
B. y=2(x+3)
C. y+3=2x
D. y-3=2(x-3)
Answers
y=mx+b, where m=slope and b=y-intercept (value of y when x=0)
m=(y2-y1)/(x2-x1) "change in x divided by change in y"
m=(3--3)/(0--3)
m=6/3
m=2
And we can see the point (0, 3) so we know b=3 thus our line is:
y=2x+3
Now point slope form is y-y1=m(x-x1), where m is the slope and (x1,y1) is any point on the line...we know slope is 2 and we can use (-3,-3) for the point so:
y+3=2(x+3)
So it is answer A.
James, caleb and abigail bought a pizza. james ate 1/6 of the pizza, caleb ate 1/4 of the pizza what fracion did james and caleb eat together
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[tex] \frac{1}{6} + \frac{1}{4} [/tex]
You have to multiply the 6 by 2 to get to 12, so you have to multiply the 1 by 2 to get the equivalent fraction of 2/12. Do the same with the 1/4: you have to multiply 4 by 3 to get to 12, so you have to multiply the 1 by 3 to get to the equivalent fraction of 3/12.
[tex] \frac{2}{12} + \frac{3}{12}= \frac{5}{12} [/tex]
Davis electronics manufactures a certain type of radio that requires 15 working resistors per radio. If one out of 25 resistors is defective, are 30,150 resistors enough to assemble 1922 radios?
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Therefore,
15/1 ≤ 30150(24/25)/1922
15 ≤ 15.06
The symbol '≤' means less than or equal to. It is the inequality to be used because 15/1 is the minimum limit. As long as the ratio is equal to 15 or more than 15, then 30,150 is enough to make 1,922 radio. Since it is true that 15.06 is greater than 15, then the amount of resistors would be enough.
No, 30,150 resistors are not enough to assemble 1922 radios.
To determine if 30,150 resistors are enough to assemble 1922 radios, we need to calculate the total number of resistors required and then account for the defective resistors.
First, let's calculate the total number of resistors needed for 1922 radios. Since each radio requires 15 resistors, the total number of resistors required is:
[tex]\[ 1922 \text{ radios} \times 15 \text{ resistors/radio} = 28830 \text{ resistors} \][/tex]
Next, we need to account for the defective resistors. Given that one out of every 25 resistors is defective, we can calculate the number of defective resistors in a batch of 28830 resistors. However, to simplify the calculation, we can calculate the number of non-defective resistors we expect to get from every 25 resistors. Since 24 out of 25 are expected to be non-defective, we have:
[tex]\[ \frac{24}{25} \[/tex] { non-defective resistors per 25 resistors}
To find out how many non-defective resistors we would get from 28830 resistors, we multiply the total number of resistors by the ratio of non-defective to total resistors:
[tex]\[ 28830 \times \frac{24}{25} = 28224 \[/tex] { non-defective resistors}
Now, we compare the number of non-defective resistors needed (28830) to the number of non-defective resistors we can expect to have (28224). We find that:
[tex]\[ 28830 - 28224 = 606 \text{ resistors} \][/tex]
This means we are short by 606 non-defective resistors to assemble all 1922 radios. Therefore, 30,150 resistors are not enough.
To confirm this, let's calculate the total number of resistors needed including the defective ones. Since we know that for every 28830 non-defective resistors we need 1/25 more to account for the defective ones, we have:
[tex]\[ 28830 \times \frac{25}{24} = 30156.25 \text{ resistors} \][/tex]
This shows that we actually need more than 30,150 resistors to account for the defective ones and meet the requirement for 1922 radios. Hence, the answer is no, 30,150 resistors are not enough."
Which of the following is a polynomial with roots 2, 3i, and −3i? f(x) = x3 − 2x2 + 6x − 9 f(x) = x3 − 6x2 + 9x − 18 f(x) = x3 − 6x2 + 18x − 2 f(x) = x3 − 2x2 + 9x − 18
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Answer:
[tex]f(x)=x^3-2 x^2+9 x-18[/tex]
Step-by-step explanation:
The roots of the polynomial are [tex]2,3i,-3i[/tex].
This implies that [tex]x-2,x-3i,x+3i[/tex] are factors of the given polynomial.
The polynomial will have equation;
[tex]f(x)=(x-2)(x-3i)(x+3i)[/tex]
We expand using difference of two squares on the complex conjugates to get;
[tex]f(x)=(x-2)(x^2-(3i)^2)[/tex]
[tex]\Rightarrow f(x)=(x-2)(x^2-(-3)^2(i)^2)[/tex].
[tex]\Rightarrow f(x)=(x-2)(x^2-9(i)^2)[/tex].
Recall that;
[tex]\boxed{i^2=-1}[/tex]
[tex]\Rightarrow f(x)=(x-2)(x^2+9)[/tex].
Expand using the distributive property to get;
[tex]\Rightarrow f(x)=x^3+9x-2x^2-18[/tex].
We rewrite in standard form to obtain;
[tex]f(x)=x^3-2x^2+9 x-18[/tex]
A diagonal of a cube measures 30 inches. The diagonal of a face measures 600 SQUARE ROOTED inches. In inches, what is the length of an edge of the cube? Round the answer to the nearest tenth. HOW MANY? inches
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d^2=x^2+y^2+z^2 but since we are dealing with a cube, x=y=z=s where s is a side lenght...
d^2=3s^2 and we are told that the diagonal is 30 in. so
3s^2=30^2
3s^2=900
s^2=300
s=√300
s=10√3 in. exact
s≈17.3 in. (to the nearest tenth of an inch)
Answer:
The correct answer is 17.3
Step-by-step explanation:
Let me know if it helped you
A video game sets the points needed to reach the next level based on the function g(x) = 12(2)x − 1, where x is the current level. The hardest setting promises to multiply the points needed in each level according to the function h(x) = 3x. How many points will a player need on the hardest setting of level 6?
A 18 points
B 384 points
C 4020 points
D 6912 points
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How do you explain how to get h(t)=7(t-25)
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To Solve for t.
[tex]h(t)=7(t-25)[/tex]
Distribute the brackets.
[tex]h(t)=7*t-7*25[/tex]
[tex]h(t)=7t-175[/tex]
Subtract 7t from both sides.
[tex](h(t))-7t=(7t-175)-7t[/tex]
[tex](h(t)-7t=-175[/tex]
[tex]h*t-7t=-175[/tex]
Factor out variable, t.
[tex]t(h-7)=-175[/tex]
Divide both sides by h-7.
[tex](t(h-7))/h-7=(-175)/h-7[/tex]
[tex]t=-175/h-7[/tex]
Hope this helps!
-Benjamin
The difference of twice a number g and 10 is 24
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What is the point-slope form of a line with slope -4 that contains the point (-2, 3?
Answers
y-y1=m(x-x1)
so
point (-2,3) and slope -4
y-3=-4(x-(-2))
y-3=-4(x+2) is da equation
Answer:
y-3=-4(x+2)
Step-by-step explanation:
Given the following geometric sequence, find the common ratio: {225, 45, 9, ...}.
5
-5
1/5
-1/5
Answers
so
common ratio in 225 and 49 and 9 is
49/225 or 9/45=1/5
the common ratio is 1/5
Answer:
1/5
Step-by-step explanation:
What is the solution to the inequality l2n+5l > 1
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l2n+5l > 1
(2n+5) > 1
2n > - 4
n > -2
-(2n+5) > 1
-2n - 5 > 1
-2n > 6
n < -3
answer
n<-3 or n>-2
What's the possible answer
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What is the are of the triangle below??
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it is 9 squares high and the base is 6 squares wide
9*6 = 54
54/2 = 27
area = 27 square units
A parabola is defined by the equation (x − 5)2 = 12(y + 2). In which direction will the parabola open? upward downward right left
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Answer:
From the given expression of parabola, it is clear that the parabola is upward opening.
Step-by-step explanation:
Concept: In the equations of parabolas, when the expression having x variable has the power of 2, then the parabola opens in the y-axis. The equation of parabola is of the form X² = 4aY.
In this case, if a > 0, then the parabola opens in the upward direction.
Given equation is (x - 5)² = 4×3(y + 2). Here the expression of x has the power 2 and a = 3 > 0. So, the parabola is upward opening.
For more explanation, refer the following link:
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Final answer:
The given parabolic equation has a positive coefficient for the (y + 2) term, indicating that it opens upward.
Explanation:
The equation given is in the form of a transformed parabolic equation, which can be identified as [tex](x - h)^2 = 4p(y - k),[/tex]where the vertex of the parabola (h,k) and the value of p determine the direction in which the parabola opens.
In the equation [tex](x - 5)^2 = 12(y + 2),[/tex] the presence of the squared term on x and the fact that the coefficient of the (y + 2) term is positive indicates that the parabola opens upward.
In this case, if a > 0, then the parabola opens in the upward direction.
The coefficient of the squared term is 4p, which in this case is positive, confirming the direction of the parabola as opening upwards.
You are mailing a package that weighs 8 pounds, and sending it first class. The post office charges $0.44 for the first ounce, and charges $0.20 for each additional ounce. How much is the total cost to mail this package?
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Final answer:
To calculate the mailing cost for an 8-pound package sent first class, convert to ounces, then apply the charges for the first ounce and each subsequent ounce. The total cost is $25.84.
Explanation:
The question involves calculating the total cost of mailing a package that weighs 8 pounds, first class, with specific charges for the first ounce and each additional ounce. To calculate the cost, we first need to convert the package's weight from pounds to ounces. There are 16 ounces in 1 pound, so an 8-pound package is equivalent to 8 x 16 = 128 ounces.
The post office charges $0.44 for the first ounce. Thereafter, it charges $0.20 for each additional ounce. The cost for the additional ounces is $0.20 x (128 - 1) = $25.40. Now, add the cost for the first ounce, so the total cost is $0.44 + $25.40 = $25.84.
If csc 0=8÷7 which equation represents cot 0
Answers
Answer: [tex]Cot\theta =\frac{\sqrt{15} }{7}[/tex]
Step-by-step explanation:
Since, given [tex]cosec\theta=\frac{8 }{7}[/tex]
And we know that [tex]Cot\theta=\sqrt{cosec^2\theta-1}[/tex]
Therefore, [tex]Cot\theta=\sqrt{cosec^2\theta-1} = \sqrt{(8/7)^2-1}= \sqrt{64/49-1}[/tex]
⇒[tex]Cot\theta=\sqrt{64-49/49}=\sqrt{15/49}=\sqrt{15}/7[/tex]
Thus, [tex]Cot\theta =\frac{\sqrt{15} }{7}[/tex]
Answer:
CotA=√15/7
Step-by-step explanation:
cosecA=8/7=hypotenuse/perpendicular
We have to find cotA
We do this by right angled triangle
We use pythagoras theorem to find the base
Base²+Perpendicular²=hypotenuse²
Base²+7²=8²
Base²=15
Base=√15
cotA=Base/Perpendicular
= √15/7
Ab¯¯¯¯¯ is congruent to cd¯¯¯¯¯. point p is the midpoint of ab¯¯¯¯¯, and point q is the midpoint of cd¯¯¯¯¯. which relationship must be true? ac¯¯¯¯¯≅pq¯¯¯¯¯ bc¯¯¯¯¯≅cq¯¯¯¯¯ pb¯¯¯¯¯≅cd¯¯¯¯¯ ap¯¯¯¯¯≅dq¯¯¯¯¯
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A rectangular table with sides in the ratio 3:5 has a perimeter equal to 240 inches. what is the area of the table in square inches?
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Total ratio=8
length=5/8*240=150 inches
width=3/8*240=90 inches
The area of the table will be:
A=length*width
=150*90
A=13,500 square inches
How to divide fractions
Answers
For example:
3/7÷ 5/8 = 3/7×8/5
Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division sign to multiplication and flip the second fraction. Let's try an example.
[tex]\frac{1}{2}[/tex] ÷ [tex]\frac{5}{9}[/tex] can be rewritten as [tex]\frac{1}{2}[/tex] × [tex]\frac{9}{5}[/tex].
Now, we are simply multiplying fractions.
Multiply across the numerators and the denominators
[tex]\frac{1}{2}[/tex] × [tex]\frac{9}{5}[/tex] = [tex]\frac{9}{10}[/tex]
Therefore, [tex]\frac{1}{2}[/tex] ÷ [tex]\frac{5}{9}[/tex] = [tex]\frac{9}{10}[/tex]