Answer:
It is 3 ( i think )
Step-by-step explanation:
Expanding and Adding Expressions Use the expansion shown to simplify the expression. One-half (3 x minus two-thirds y) + 3 (StartFraction x over 2 EndFraction + one-half y) Equals (one-half) (StartFraction 3 over 1 EndFraction x) + (one-half) (Negative two-thirds y) + (StartFraction 3 over 1 EndFraction) (one-half x) + (StartFraction 3 over 1 EndFraction) (one-half y) Equals (three-halves x) + (negative one-third y) + (three-halves x) + (three-halves y) = 3x + y
Answer:
[tex]3x+\frac{7}{6}y[/tex]
Step-by-step explanation:
To simplify the expression, we first open the parenthesis, then we collect all the like terms. Lastly we simplify the like terms to its simplest form. Given that:
[tex]\frac{1}{2}(3x-\frac{2}{3} y)+3(\frac{x}{2}+\frac{1}{2}y )\\\\Firstly, we\ expand\ the\ parenthesis:\\\\=\frac{1}{2}(3x)-\frac{1}{2}(\frac{2}{3} y)+3\frac{x}{2}+3(\frac{1}{2} y)\\[/tex]
[tex]=\frac{3}{2}x-\frac{1}{3}y +\frac{3}{2}x+\frac{3}{2} y\\\\ Collecting\ like\ terms:\\\\=\frac{3}{2}x+\frac{3}{2}x-\frac{1}{3}y+\frac{3}{2}y\\\\Adding \ terms:\\\\=3x +\frac{7}{6}y[/tex]
Which equation represents a circle that contains the point (-5, -3) and has a center at (-2, 1)?
Distance formule: (x2 - x1)2 +(y2-y1)2
(x-1)2 + (y + 2)2= 25
(x + 2)2 + (y - 1)2=5
(x + 2)2+(y - 1)2 = 25
(X - 1)2 + (y + 2)2=5
Answer:
(x + 2)^2 + (y - 1)^2 = 25.
Step-by-step explanation:
The centre is at (-2, 1) so the equation is:
(x + 2)^2 + (y - 1)^2 = r^2 where r is the radius.
The radius is the distance from the centre to the point (-5, -3).
Using the distance formula:
r = √ [(-3- 1)^2 + (-5 - -2)^2]
and r^2 = (-3- 1)^2 + (-5 - -2)^2
= (-4)^2 + (-3)^2
= 16 + 9
= 25.
Please please help me! Here is a graph of y=7-x for values x from 0 to 7.
Answer:
Step-by-step explanation:
hello,
pls find below the graph
we need to find the point of intersection between both lines
which is (4,3)
hope this helps
The solution for the given system of linear equations is (4, 3).
Given that, here is a graph of y=7-x for values x from 0 to 7.
What is the graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.
The given system of linear equations
y=7-x -------(I) and y=x-1 -------(II)
From equation (I) and (II),
7-x=x-1
⇒ 2x=8
⇒ x=4
So, y=7-x=3
Thus, (x, y)=(4, 3)
Therefore, the solution for the given system of linear equations is (4, 3).
To learn more about the graph visit:
brainly.com/question/14375099.
#SPJ5
Please Help me I am struggling a lot and I would be very grateful!!!
if U is the midpoint of CB, CU=18, and CB= 2x-10, then find x
Answer:
x = 23
Step-by-step explanation:
CU + UB = CB
Since U is the midpoint that means CU = UB = 18
18+ 18 = 2x-10
36 = 2x-10
Add 10 to each side
36+10 = 2x
46 =2x
Divide by 2
23 = x
Answer:
x = 23Step-by-step explanation:
CB/2 = CU
CB = (2)CU
2x - 10 = (2)18
2x - 10 = 36
Add 10 on both sides.
2x = 46
Divide both sides by 2.
x = 23
please help to solve this question
Find H.C.F
i) x^3-y^3, x^6-y^6, x^4+ x^2y^2+y^4
Answer:
No Like terms
Step-by-step explanation:
x^3-y^3= No like terms (its simplified)
x^6-y^6= No like terms (its simplified)
x^4+ x^2y^2+y^4 = No like terms (its simplified)
Hope this helps! Have a nice day :)
Answer:
x^2+xy+y^2
Step-by-step explanation:
x^3-y^3= (x-y)((x^2+xy+y^2)x^6-y^6=(x^3+y^3)(x^3-y^3)= (x^3+y^3)(x-y)(x^2+xy+y^2)x^4+ x^2y^2+y^4= x^4+2x^2y^2+y^4 - x^2y^2= (x^2+y^2)^2 -x^2y^2=(x^2+xy+y^2)(x^2-xy+y^2)HCF is x^2+xy+y^2 as it is the factor of all three polynomials
MIXED APPLICATIONS
21. In 1960, the average speed of passenger
aircraft within the U.S. was 235 miles per
hour. By 1978 the average speed was 1.74
times that amount. To the nearest whole
number, what was the average speed in 1978?
Help mepleaee
Answer:
Average speed of passenger aircraft in 1978 is 408.9 mph
Step-by-step explanation:
Here, in the question, we are tasked with giving the value of the average speed of the passenger aircraft in the US for the year 1978, given that it is a certain multiple of the value in 1960.
So what we will be doing here is to get the value of the average speed and it can be gotten by multiplying the average speed in 1960 by the multiple to which the speed is, now in 1978.
From the question, we can write a formula for this;
Average speed of passenger aircraft in 1978 = 1.74 * average speed of passenger aircraft in 1960
From the question, we have that the average speed of passenger aircraft in 1960 = 235 mph
Thus,
Average speed of passenger aircraft in 1978 = 1.74 * 235 = 408.9 mph
What is the length of AC?
Answer:
≈ 5.9
Step-by-step explanation:
AC/3= 5.5/2.8
AC= 5.5*3/2.8
AC ≈ 5.9
The diagram shows an empty tank in the shape of a horizontal prism of length 150 cm.
The cross section of the prisin is an isosceles trapezium ABCD.
AB= 50cm, CD- 70 cm and the vertical height of the trapezium is 40 cm.
(0) Calculate the volume of the tank. it is a math question
Answer:
2400
Step-by-step explanation:
Area of a trapezoid: (b₁ + b₂) / 2 * h
= (70 + 50) / 2 * 40
= 60 * 40 = 2400
Solve the equation 3/2(y-1) =y+5 and represent the solution on number line and on the cartesian plane...... pls solve it and spam answers will be reported and if it is truly the correct answer i will 100% sure mark it as brainleist
Answer:
y = 13
Step-by-step explanation:
Step 1: Distribute
3/2y - 3/2 = y + 5
Step 2: Subtract y on both sides
1/2y - 3/2 = 5
Step 3: add 3/2 on both sides
1/2y = 13/2
Step 4: Divide both sides by 1/2
y = 13
Answer:
y = 13.
Step-by-step explanation:
3/2(y-1) = y+5
3/2y - 3/2 = y + 5
3/2y - y = 5 + 3/2
1/2y = 6 and 1/2; 6.5; 13/2
y = 13.
To check out work...
3/2(13 - 1) = 13 + 5
3/2(12) = 18
3 * 6 = 18
18 = 18
On a number line, all you need to do is plot a point where it says 13. On a cartesian plane, you would have a horizontal line that expands infinitely in each direction, where y = 13.
Hope this helps!
Can someone help with this trig ? pls
Answer:
45°
Step-by-step explanation:
To find you answer, we take the inverse sin(√2/2). When you plug that into your calc, you get 45°.
Alternatively, if you learned and remembered your unit circle, inverse sin(√2/2) would be π/4.
Using a sheet of graph paper, solve the following system of equations graphically. Be sure to show any work, use a straight edge, and be neat. When you are finished, enter the solution set in the box below and turn in your graph paper to your teacher.
Answer:
(-1, 1)
Step-by-step explanation:
The solution is where the 2 graphs intersect.
A bag contains 2 red beads, 1 yellow bead and 3 green beads. A bead is chosen at random. What is the probability that it is red? a) What is the probability that it is not yellow?
Answer:
Step-by-step explanation:
Total no of beads = 2 + 1 + 3 = 6
No of red beads = 2
p ( red ) = 2/6 = 1/3
No of non - yellow beads = 5
p ( yellow ) = 5/6
Hope this helps
plz mark as brainliest!!!!!!!!
Answer:
Step-by-step explanation:
There are total 6 beads in all.
2) Since there are 5 non-yellow beads, the probability that the bead is not yellow will be 5/6
Since there are 2 red beads, the probability that the bead is red will be 2/6 = 1/3
Matt is a quarterback on the local football team. In the first quarter, Matt threw eight passes. Three passes were completions for gains of 12, 17, and 6 yards, while two passes were completions for losses of 2 yards and 5 yards. The other three passes were incompletions. What was the total accumulated yardage for Matt in the first quarter? Pleeease help I'll award brainliest!!!
Answer:
I think it's 28 yards gained.
Step-by-step explanation:
12 + 17 + 6 = 35
2 + 5 = 7
35 - 7 = 28
Please tell me if I'm wrong
In 1000 sq. meter of land a farmer cultivated 765 kg of rice with the wastage of 23.5%.I) Find the weight of the wastage. II) Find the weight and percentage of rice cultivated.
Answer:
i. weight of wastage(kg) = 179.775 kg
ii. weight of rice cultivated = 765 kg - 179. 775 kg = 585.225 kg
percentage of rice cultivated = 100 - 23.5 = 76.5%
Step-by-step explanation:
A land of 1000 sq. meter is used to cultivate 765 kg of rice with wastage of 23.5%.
i. The wastage in percentage is 23.5% but the weight of the wastage in weight is 23.5% of 765 kg
weight of wastage = 23.5/100 × 765
weight of wastage = 17977.5/100
weight of wastage(kg) = 179.775 kg
ii. weight and percentage of rice cultivated.
weight of rice cultivated = 765 kg - 179. 775 kg = 585.225 kg
percentage of rice cultivated = 100 - 23.5 = 76.5%
Please help if you think you can
Answer:
-32x-22y
Step-by-step explanation:
4x + 2y - 6(6x - 4y)
Use distributive property
4x + 2y - 6(6x - 4y)
4x + 2y - 36x -24y
-32x-22y
Step-by-step explanation:
4x + 2y - 6(6x - 4y)
To remove the parenthesis multiply 6 by the terms in the parenthesis
That is
4x + 2y - 36x + 24y
Group like terms
4x - 36x + 2y + 24y
Simplify the terms
- 32x + 26y
Divide all terms by 2
we get
- 16x + 13y
I hope this helps you
Write an equation in point-slope form for each line (If possible please show work)
Answer: y-2=1/4(x-1)
Step-by-step explanation:
The formula for point-slope is y-y₁=m(x-x₁). Since we are given the slope m, we can fill that in. We are also given the point (x₁,y₁). We can also fill that in.
y-2=1/4(x-1)
There are d black and brown horses in a field. There are 16 more black horses than brown horses. Of the horses in the field, only 25% of them are brown. How many are black?
Answer: 24 black horses
Step-by-step explanation:
Let the number of black horses = bl and
The number of Brown horses = br
Total number of horses = d
Of the horses in the field, only 25% of them are brown. That is,
25% of d = br
0.25d = br ........ (1)
The remaining horses are black. Which will be 100% - 25% = 75%. That is,
75% of d = bl
0.75d = bl ........(2)
But according to the question, there are 16 more black horses than brown horses. That is,
bl = br + 16 ..... (3)
The total number of horses d will be
d = br + bl ...... (4)
Substitute bl in equation 3 into equation 4
d = br + br + 16
d = 2br + 16 ..... (5)
Substitutes equation (1) into the equation (5)
d = 2( 0.25d ) + 16
d = 0.5d + 16
Collect the like terms
d - 0.5d = 16
0.5d = 16
d = 16/0.5
d = 32
Substitute 32 for d in equation (2).
bl = 0.75 × 32
bl = 24 horses.
Therefore, 24 horses are black.
(10,16) and (-28, -16)
What is the midpoint of a segment
with the endpoints shown to the
left?
(-18, 0)
(-9, 2)
(19,16)
(-9,0)

Answer:
(-9, 0)
Step-by-step explanation:
To find the midpoint of the segment, we use the mathematical formula below;
(x,y) = {(x1+x2)/2 , (y1+y2)/2}
From the question;
(x1,y1) = (10,16)
(x2,y2) = (-28,-16)
Substituting these values into the equation we wrote above, we have;
(x,y) = (10-28)/2 , (16-16)/2
(x,y) = (-18/2, 0/2) = (-9,0)
AC=4, AE=7, AD=10, what is the length of AB?
A: 1 3/7
B: 2 1/2
C: 5 5/7
D: 17 1/2
Answer:
C. [tex] AB = 5\frac{5}{7} [/tex]
Step-by-step explanation:
When two polygons are considered similar, the ratio of their corresponding sides would also be equal.
Since ∆ABC and ∆ADE are similar, [tex] \frac{AE}{AC} = \frac{AD}{AB} [/tex]
[tex] \frac{7}{4} = \frac{10}{AB} [/tex]
Cross multiply
[tex] 7*AB = 10*4 [/tex]
[tex] 7*AB = 40 [/tex]
Divide both sides by 7 to find AB
[tex] \frac{7*AB}{7} = \frac{40}{7} [/tex]
[tex] AB = \frac{40}{7} [/tex]
[tex] AB = 5\frac{5}{7} [/tex]
An empty container has a capacity of 60000 litres to 1 significant figure Tony pours in 5400 litres of water to 1 significant figure He says “I have filled more than 10% of the container” Is he correct
Answer:
The container's capacity could be anything from 55,000 to 65,000. Exactly 10% of that is anything from 5500 to 6500.
The amount of water poured in could be anything from 5350 or 5450. That is NOT in the range above, so the answer is NO.
No, Tony is not correct.
The following information should be considered:
The container capacity could be varied from 55,000 to 65,000. Now if do exactly 10% so it should be 5,500 to 6,000.But the amount of water poured could be 5,350 or 5,450.Based on the above information we can conclude that tony is not correct.
Learn more: brainly.com/question/3299455
3.5 + 1.2(6.3 – 7x) = 9.38
Answer: 0.2
Step-by-step explanation:
subtract 9.38 - 3.5 = 5.88
distribute the 1.2.
7.56 - 8.4x = 5.88
subtract 5.88 - 7.56 = -1.68
-8.4x = -1.68
divide both sides by -8.4
answer = 0.2
Identify the Minimum value of the function y=x^2+6x+ 9
====================================================
Explanation:
You can factor x^2+6x+9 into (x+3)^2, which turns into 1(x - (-3) )^2 + 0
So y = x^2+6x+9 becomes y = 1(x - (-3) )^2 + 0
That matches with vertex form y = a(x-h)^2 + k
The vertex is (-3,0). The y coordinate of the vertex directly tells us the minimum value. We know we have a minimum because a = 1 is positive. If a < 0, then we'd have a max y value instead.
-------------------
Alternatively, compare y = x^2+6x+9 to the form y = ax^2+bx+c
We see that a = 1, b = 6, c = 9
The x coordinate of the vertex is
h = -b/(2a)
h = -6/(2*1)
h = -3
The x coordinate of the vertex is x = -3. Plug this into the original equation to find the y coordinate of the vertex
y = x^2 + 6x + 9
y = (-3)^2 + 6(-3) + 9
y = 9 - 18 + 9
y = -9 + 9
y = 0
The y coordinate of the vertex is y = 0. This is the smallest y output possible.
ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions.
Answer:
The speed of a car.
Step-by-step explanation:
All the other answers are discrete.
Answer:
second one
Step-by-step explanation:
The speed of a car is a data that changes over time and it is a countinuous data
While other examples are only discrete data since they contain quantities
If function ghas the factors (x-7) and (x + 6), what are the zeros of function g?
Answer:
x = 7, -6
Step-by-step explanation:
Since they already give you the binomial factors, all you need to do is set them equal to 0 to find your roots:
x - 7 = 0
x = 7
x + 6 = 0
x = -6
Answer:
The zeros are 7 and -6Step-by-step explanation:
(x-7)(x+6)=0
x-7=0/(x+6)
x cannot be -6
x-7=0
x=7
x+6=0/(x-7)
x+6=0
x=-6
The zeros are 7 and -6
Who coined the term “fractal”?'
Answer:
Benoit Mandelbrot
Step-by-step explanation:
I googled it.
Answer:
B MANDLEBROT
Step-by-step explanation:
Who coined the term “fractal”?
a.
Sierpinski
c.
Sapoval
b.
Mandlebrot
d.
Amalgamated Research
The height of a model rocket is 4% of the height of the actual rocket. The model is 2m high. How high is the actual rocket?
Answer:
50m
Step-by-step explanation:
The model rocket is 4% of the actual rocket and it is 2m high
That means that 4%=2m
4 fits into 100, 25 times so multiply both by 25:
100%=25*2m
100%=50m
100% being the actual rocket
hope this helped!
What is the value of m in the figure below? In this diagram, ΔABD ~ ΔBCD.
Answer:
√126Option D is the right option.
solution,
[tex] \frac{ac}{bc} = \frac{bc}{dc} \\ or \: \frac{18}{ m} = \frac{m}{7} \\ or \: m \times \: m = 18 \times 7(cross \: multiplication) \\ or \: {m}^{2} = 126 \\ m = \sqrt{126} [/tex]
Hope this helps..
Good luck on your assignment.
Hope
Suppose ADequalsISubscript m (the mtimesm identity matrix). Show that for any Bold b in set of real numbers R Superscript m, the equation ABold xequalsBold b has a solution. [Hint: Think about the equation ADBold bequalsBold b.] Explain why A cannot have more rows than columns.
Answer:
See Explanation
Step-by-step explanation:
(a)For matrices A and D, given that: [tex]AD=I_m[/tex].
We want to show that [tex]\forall b \in R^m[/tex], Ax=b has a solution.
If Ax=b
Multiply both sides by D
[tex](Ax)D=b \times D\\\implies (AD)x=bD$ (Recall: AD=I_m)\\\implies I_mx=Db $ (Since I_m$ is the m\times m$ identity matrix)\\\implies x=Db[/tex]
This means that the system Ax=b has a solution.
(b)Matrix A has a pivot position in each row where each pivot is a different column. Therefore, A must have at least as many columns as rows.
This means A cannot have more rows than columns.
Giovanna used the calculations below to determine the height of a stack of 7 books that are each 2 and StartFraction 5 over 8 EndFraction inches thick. What was her error? 7 (2 and StartFraction 5 over 8 EndFraction). 7 (2 + StartFraction 5 over 8 EndFraction). 14 + StartFraction 5 over 8 EndFraction. 14 and StartFraction 5 over 8 EndFraction The fraction was not simplified in the last step. Seven was not multiplied by StartFraction 5 over 8 EndFraction. There should be a subtraction step, not an addition step. Two should have been multiplied by StartFraction 5 over 8 EndFraction.
Answer:
She didn't do the multiplication of 7 times the fraction 5/8 by using distributive property.
so the correct answer is the one that looks like:
Seven was not multiplied by StartFraction 5 over 8 EndFraction.
in your list of options.
Step-by-step explanation:
If one has a stack of seven books each [tex]2\frac{5}{8} \,\,in[/tex] thick, one should first convert the mixed number to an addition of an integer plus a fraction
[tex]2\frac{5}{8} =(2+\frac{5}{8})[/tex]
as she did, and then multiply 7 by the addition, making sure to use distributive property and multiply both terms:
[tex]7\,\,(2+\frac{5}{8})=7\,*\,12+7\,*\,\frac{5}{8}=14+\frac{35}{8}[/tex]
and she didn't do the multiplication of 7 times the fraction 5/8