Answers
Given:
The system is:
[tex]\begin{cases}{2x+3y+10z=9} \\ {-x+2y+5z=1} \\ {3x+z=5}\end{cases}[/tex]The solution is (2,3,-1)
Find-:
The (2,3,-1) is the solution of function or not
Explanation-:
The solution is (2,3,-1) which means:
[tex]\begin{gathered} x=2 \\ \\ y=3 \\ \\ z=-1 \end{gathered}[/tex]Check the value for the given expression:
[tex]\begin{gathered} 2x+3y+10z=9 \\ \\ 2(2)+3(3)+10(-1)=9 \\ \\ 4+9-10=9 \\ \\ 3\ne9 \end{gathered}[/tex]So, it is not a solution of system.
Related Questions
A hummingbird can travel up to 15 meters per second.What is the hummingbird's speed in miles per hour?1 mile ≈ 1609 meters Enter your answer, as a decimal to the nearest tenth, in the box. mph
Answers
SOLUTION
The speed of the hummingbird is giving as
[tex]\text{ 15meter/seconds }[/tex]Recall that
[tex]1\text{mile}\approx1609\text{ meters }[/tex]Hence
[tex]\begin{gathered} 15\text{meters will be }\frac{15}{1609}miles\text{ } \\ \\ \end{gathered}[/tex]Recall that
[tex]3600\text{ seconds =1hour }[/tex]Hence
the speed of the hummingbird in miles per hour will be
[tex]\begin{gathered} \frac{15}{1609}\times\frac{3600}{1}=\frac{54000}{1609}=33.56\text{miles per hour } \\ \\ \end{gathered}[/tex]Therefore the speed in miles per hour to the nearest tenth is 33.6mph
What is the slope of the points (3,64) and (9,79).
m=
m =
= 15
6
m =
Un Hồ
2-#1
m=2.5
6
15
Answers
Answer:
[tex]\boxed{\bf Slope(m)=2.5}[/tex]
Step-by-step explanation:
We can use the slope formula to find the slope of a line given the coordinates of two points on the line:- (3,64) and (9,79).
The coordinates of the first point represent x_1 and y_1. The coordinates of the second points are x_2, y_2.
[tex]\boxed{\bf \mathrm{Slope}=\cfrac{y_2-y_1}{x_2-x_1}}[/tex]
[tex]\sf \left(x_1,\:y_1\right)=\left(3,\:64\right)[/tex]
[tex]\sf \:\left(x_2,\:y_2\right)=\left(9,\:79\right)[/tex]
[tex]\sf m=\cfrac{79-64}{9-3}[/tex]
[tex]\sf m=\cfrac{5}{2}[/tex]
[tex]\sf m=2.5[/tex]
Therefore, the slope of (3,64) and (9,79) is D) 2.5!!
___________________
Hope this helps!
Have a great day!
Answer:
m = (y2 - y1)/(x2 - x1) m = 15/6 m = 2.5Step-by-step explanation:
Formula we use,
→ m = (y2 - y1)/(x2 - x1)
Then the required slope is,
→ m = (y2 - y1)/(x2 - x1)
→ m = (79 - 64)/(9 - 3)
→ m = 15/6
→ [ m = 2.5 ]
Hence, the slope is 2.5.
8i+ 5 - 2i equals 3i+ 23
Answers
We will have:
[tex]8i+5-2i=3i+23[/tex]We will operate like terms and solve for i, that is:
[tex]8i-2i-3i=23-5\Rightarrow3i=18\Rightarrow i=6[/tex]*Step by step:
[tex]8i+5-2i=3i+23\Rightarrow6i+5=3i+23[/tex][tex]\Rightarrow6i+5-5=3i+23-5\Rightarrow6i=3i+18[/tex][tex]\Rightarrow6i-3i=3i+18-3i\Rightarrow3i=18[/tex][tex]\Rightarrow\frac{3}{3}i=\frac{18}{3}\Rightarrow i=6[/tex]can you help with this one its has 11 part to it
Answers
Recall that the limit of a function exists if
[tex]\lim_{x\to n^+}f(x)=\lim_{x^\to n^-}f(x).[/tex]Now, from the graph, we get that:
[tex]\begin{gathered} \lim_{x\to0^-}f(x)=0, \\ \lim_{x\to0^+}f(x)=0, \end{gathered}[/tex]therefore:
[tex]\lim_{x\to0}f(x)=0.[/tex]Answer: [tex]True.[/tex]There are 364 people That have to go from the airport to the hotel. One sand can’t transfer 12 people have any vans are needed
Answers
To find the number of van that are needed you divide the number of people into the people that a van can transport:
As the result of division is a decimal number you approximate it to the next whole number (because you can not have 0.33 of a van)
Then, there are needed 31 vansBrad expects that he will need $12,000 in 6 years to start an engineering consulting business. He has been offered an investment at 5%, compounded monthly. How much must he invest today to have enough money in 6 years? How much interest will he have earned?
Answers
Answer:
Invest today: $8895.36
Interest earned: $3104.64
Explanation:
The amount after t years can be calculated as:
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]Where P is the initial amount invested, r is the interest rate and t is the number of years and n is the number of times the interest rate is compound. Solving the equation for P, we get:
[tex]P=\frac{A}{(1+\frac{r}{n})^{nt}}[/tex]Now, we can replace A by $12,000, r by 5% = 0.05, n by 12 because it is compounded monthly and t by 6
[tex]P=\frac{12000}{(1+\frac{0.05}{12})^{12(6)}}=8895.36[/tex]Therefore, he should invest $8895.36 today to have enough money in 6 years.
Finally, the interest earned is calculated as
$12000 - $8895.36 = $3104.64
So, the answers are:
Invest today: $8895.36
Interest earned: $3104.64
x^2+x^2=11.3^2 solve using the pathogen theorem
Answers
The value of x in the given expression is 8.
What is Pythagoras theorem?Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (a² + b² = c²).
Given an expression, x²+x² = 11.3²
2x² = 11.3²
[tex]\sqrt{2}[/tex]x = 11.3
x = 7.99 = 8
Hence, The value of x in the given expression is 8.
For more references on Pythagorean theorem, click;
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help me out please thanks
Answers
Answer:
1/10
Step-by-step explanation:
=a+4/5=3/2
=a=4/5-3/2
=a=1/10
Answer: a = 7/10
Step-by-step explanation:
Convert and mix 1 and 1/2 to get 3/2
Next move 4/5 to the right side
Then multiply 4/5 by 3/2 to get the answer 7/10
Solve the system of equation graphed on the coordinate axed below y=-4/3x-1
Y=4/3x+7
Answers
Answer:
[tex]x=-3, y=3[/tex]
Step-by-step explanation:
The solution to a system is where the graphs intersect.
Use the drop-down menus to identify the values of theparabola.Vertex=Domain=Range=
Answers
Given:
We get the point (0,4) from the graph.
Recall that the vertex of a parabola is the point at the intersection of the parabola and its line of symmetry.
[tex]\text{Vertax =(0,4)}[/tex]Every single number on the x-axis results in a valid output for the function.
The domain of the parabola is real values.
[tex]\text{Domain}=(-\infty,\infty)[/tex]
The maximum value of y is 4 and the parabola is open down.
[tex]Range=(-\infty,4\rbrack[/tex]Final answer:
[tex]\text{Vertax =(0,4)}[/tex][tex]\text{Domain}=(-\infty,\infty)[/tex][tex]Range=(-\infty,4\rbrack[/tex]Anna found that there are 3^4 options for pizzas with different loppings at her local are there for pizzas? B. 12 c. 64 D.BA ker notes
Answers
As there are 3^4 options for pizzas, we can calculate this as:
[tex]3^4=3\cdot3\cdot3\cdot3=81[/tex]Answer: 3^4 options is equivalent to 81 options (option D).
Bailey wants to buy a house, paying approximately $1000 per month. The bank estimates a 4.5% annual interest rate for 15 years. Which formula approximates the total value of a house Bailey can afford?
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Data:
Amount per month: $1000
Interest rate: 4.5% annual for 15 years
As Bailey wants to pay approx. $1000 per month, in a year he wants to pay approx.: $12000
[tex]1000\cdot12=12000[/tex]can you help me is it < > or =
Answers
The correct answer is
[tex]\frac{1}{4}\times4\frac{1}{2}<4\frac{1}{2}[/tex]50. What is the intersection of plane STUV and plane UYXT?SуUWZA. SVB.YZC. STD. TX
Answers
The intersection of plane STUV and plane UYXT will be the line segment TU.
The task is to determine the intersection of the planes UYXT and STUV.
We are aware of;
When two planes overlap, their intersection is a straight line.
The points 'T' and 'U' are shown in the picture to be on both planes UYXT and STUV.
As a result, the line connecting these two points, that is, the line TU likewise lies on both planes.
As a result, the line 'TU' is formed by the intersection of both planes.
Thus, the intersection of plane STUV and plane UYXT will be the line segment TU.
To learn more about the intersection of the planes visit:
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how much higher is 1,774 than -118(adding and subtracting integers)
Answers
To find the difference between two numbers, we substract the smaller one from the bigger one. In this case, the smaller one is -118 and the bigger one is 1,774. Then:
[tex]1774-(-118)=1774+118=1892[/tex]Then 1774 is higher than -118 by 1892
Determine the number of solutions for the following system of linear equations. If there is only onesolution, find the solution.x + 3y – 2z = 6- 4x - 7y + 3z = 3- 7x – 4y - 3z = -5AnswerKeypadKeyboard ShortcutsSelecting an option will enable input for any required text boxes. If the selected option does not have anyassociated text boxes, then no further input is required.O No SolutionO Only One SolutionX =y =Z=Infinitely Many Solutions
Answers
First, let's clear z from equation 1:
[tex]\begin{gathered} x+3y-2z=6\rightarrow x+3y-6=2z \\ \rightarrow z=\frac{1}{2}x+\frac{3}{2}y-3 \end{gathered}[/tex]Now, let's plug it in equations 2 and 3, respectively:
[tex]\begin{gathered} -4x-7y+3z=3 \\ \rightarrow-4x-7y+3(\frac{1}{2}x+\frac{3}{2}y-3)=3 \\ \\ \rightarrow-4x-7y+\frac{3}{2}x+\frac{9}{2}y-9=3 \\ \\ \rightarrow-\frac{5}{2}x-\frac{5}{2}y=12_{} \\ \end{gathered}[/tex][tex]\begin{gathered} -7x-4y-3z=-5 \\ \rightarrow-7x-4y-3(\frac{1}{2}x+\frac{3}{2}y-3)=-5 \\ \\ \rightarrow-7x-4y-\frac{3}{2}x-\frac{9}{2}y+3=-5 \\ \\ \rightarrow-\frac{17}{2}x-\frac{17}{2}y=-8 \end{gathered}[/tex]We'll have a new system of equations:
[tex]\begin{gathered} -\frac{5}{2}x-\frac{5}{2}y=12_{} \\ \\ -\frac{17}{2}x-\frac{17}{2}y=-8 \end{gathered}[/tex]Now, let's simplify each equation. To do so, we'll multiply the first one by -2/5 and the second one by -2/17. We'll get:
[tex]\begin{gathered} x+y=-\frac{24}{5} \\ \\ x+y=\frac{16}{17} \end{gathered}[/tex]Now, let's solve each equation for y to see them as a pair of line equations:
[tex]\begin{gathered} y=-x-\frac{24}{5}_{} \\ \\ y=-x+\frac{16}{17} \end{gathered}[/tex]Notice that this lines have the same slope. Therefore, they're parallel and do not intercept.
This way, we can conlcude that the original system has no solution.
need help- don’t mind the writing in pencil I forgot to erase it
Answers
We will deteremine the length of segment TV as follows:
[tex]A=\frac{WU\cdot TV}{2}\Rightarrow200=\frac{16\cdot TV}{2}[/tex][tex]\Rightarrow400=16\cdot TV\Rightarrow TV=25[/tex]So, the lenght of segment TV is 25 centimeters.
a) which is equation of the parabola? b) name the focus and directrix ? c) name vertex and axis of symmetry?
Answers
The equation of the parabola whose axis of symmetry is parallel to x-axis is
[tex](y-k)^2=4p(x-h)[/tex]where the focus is
[tex]\text{focus}=(h+p,k)[/tex]and the directrix is
[tex]x=h-p[/tex]In our case, the focus is (6,1) and the directrix is x =2; therefore, we have
[tex](6,1)=(h+p,k)[/tex]and
[tex]h-p=2[/tex]These equations give
[tex]k=1,h=4,p=2[/tex]Hence, the equation of the parabola is
[tex](y-1)^2=8(x-4)[/tex]How do you solve literal equation:u=x-k, solve for x12am=4, solve for aa-c=d-r, solve for a
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In order to solve a literal equation, we just need to isolate the chosen variable in one side of the equation. So we have:
[tex]\begin{gathered} u=x-k \\ u+k=x \\ x=u+k \\ \\ 12am=4 \\ a=\frac{4}{12m} \\ a=\frac{1}{3m} \\ \\ a-c=d-r \\ a=d-r+c \end{gathered}[/tex]Using the image above, which of the following are opposite rays?A QP and PLB PL and PQC LP and QPD LQ and PQ
Answers
ANSWER
PL and PQ
EXPLANATION
We want to find which of the rays are opposite rays.
That means which of the rays are going in opposite direction and are the same length to one another.
We see different rays in the image. Some are going upward while some are going downward.
The ones going upward are:
LQ and PQ
The ones going downward are:
QL and PL
By observation, among all the options, we see that only PL and PQ are the same length and that are in opposite directions.
That means that the answer is PL and PQ
a figure has vertices (-13,13), (26,52), (39,39) what would the new coordinates of the vertices to the nearest tenth if the image were reduced by a scale factor of 0.77 with the origin as the center of dilation
Answers
Explanation
Given that the figure has vertices (-13,13), (26,52), (39,39), to reduce the image by a scale factor of 0.77 with the origin as the center of dilation, we will multiply the x and y coordinates by the scale factors.
Ashton, Anywhere had a population of 294876 in 2007. The population is inci upon this data, predict the population for in 9 years.
Answers
Answer:
378,075
Explanation:
The population of Ashton in 2007 = 294876
The population increases at a constant rate of 2.8%.
Therefore, the population at any time, t after 2007 is:
[tex]\begin{gathered} P(t)=294876(1+2.8\%)^t \\ P(t)=294876(1+0.028)^t \\ P(t)=294876(1.028)^t \end{gathered}[/tex]Therefore, the population in 9 years time will be:
[tex]\begin{gathered} P(9)=294876(1.028)^9 \\ =378074.6 \\ \approx378,075 \end{gathered}[/tex]The predicted population in 9 years will be 378,075.
Instructions: Find the missing side of the triangle. tion 24 x 7 2 =
Answers
We are given a right-angled triangle.
Two of the side lengths are given and the third is missing.
We can us the Pythagorean theorem to find the missing side of the triangle.
[tex]c^2=a^2+b^2[/tex]Where c is the longest side, a and b are the shorter sides of the triangle.
[tex]\begin{gathered} c^2=a^2+b^2 \\ x^2=7^2+24^2 \\ x^2=49^{}+576 \\ x^2=625 \\ x^{}=\sqrt[]{625} \\ x^{}=25 \end{gathered}[/tex]Therefore, the missing side of the triangle is 25
Chase rode a Ferris wheel 93 timesaround, one lap after the other. If eachlap of the Ferris wheel took 20 seconds,how long was Chase's ride?minute
Answers
If Chase rode 93 times around, and each lap takes 20 seconds, to find out how long was Chase's ride we must multiply the time for each lap, and how many laps she did, then, the calculus will be
[tex]time=93\cdot20[/tex]The result will be in seconds!
[tex]\begin{gathered} time=93\cdot20 \\ \\ \text{time}=1860\text{ seconds} \end{gathered}[/tex]Then Chase's ride was 1860 seconds long! We can covert it in minutes by doing the division by 60
The time in minutes will be
[tex]\begin{gathered} \text{time}=\frac{1860}{60}\text{ minutes} \\ \\ \text{time}=31\text{ minutes} \\ \end{gathered}[/tex]Therefore, Chase's ride took 31 minutes
1 Factor each polynomial over the set of realC)f(x) = x^4- 25x^2 + 144
Answers
Notice that:
[tex]\begin{gathered} x^4-25x^2+144=(x^2)^2+(-9-16)x^2+(-9)(-16) \\ =(x^2-9)(x^2-16)\text{.} \end{gathered}[/tex]Now, notice that:
[tex]\begin{gathered} x^2-9=x^2-3^2=(x+3)(x-3), \\ x^2-16=x^2-4^2=(x+4)(x-4)\text{.} \end{gathered}[/tex]Therefore:
[tex]x^4-25x^2+144=(x+3)(x-3)(x+4)(x-4)\text{.}[/tex]Answer:
[tex]x^4-25x^2+144=(x+3)(x-3)(x+4)(x-4)\text{.}[/tex]
is the least common denominator of two fractions always greater than the denominators of the fractions
Answers
The least common denominator of two fractions is not always greater than the denominators of each fraction because sometimes the least common denominator is equal to the greater denominator. For example, if we have the fractions
[tex]\frac{4}{5}-\frac{1}{5}[/tex]In this case, since you have equal denominators, the least common factor would be 5, not greater than 5.
Another example could be
[tex]4+\frac{2}{9}[/tex]In this case, the least common denominator is 9, not greater than 9.
Therefore, the least common denominator is not always greater than the denominator of the fractions.Select the correct answer.What are the asymptote and the y-intercept of the function shown in the graph?
Answers
Answer:
Explanation:
Here, we want to get the y-intercept and the asymptote of the shown function
The y-intercept is simply the point at which the curve crosses the y-axis
We can see this at the point y = 5 which is coordinate form is (0,5)
The asymptote is the point on the y-axis where the curve almost flattens out but will never touch
We have this at the point y = 2
Which equation is true when the value of x is -12
Answers
We are told to check for the correct equation that satisfies when the value of x = -12.
Let us resolve that by picking one of the options and testing it to confirm if it satisfies the value of x = -12.
Starting with OPTION B
[tex]15-\frac{1}{2}x=21[/tex]Solve for x
Subtract 12 from both sides
[tex]\begin{gathered} 15-15-\frac{1}{2}x=21-15 \\ -\frac{1}{2}x=6 \end{gathered}[/tex]Multiply both sides by 2
[tex]\begin{gathered} 2\times-\frac{1}{2}x=2\times6 \\ -1x=12 \end{gathered}[/tex]Divide both sides by -1
[tex]\begin{gathered} \frac{-1x}{-1}=\frac{12}{-1} \\ x=-12 \end{gathered}[/tex]From the solution, we can conclude that the above equation is true when the value of x = -12.
The correct option is Option B.
Tomas is leaving a tip of 18% of his original bill. If the amount of the tip is $2.34, which of the following equations can be used to find the amount of his original bill?0.18b = 2.34b - 0.18 = 2.342.34 x 0.18 = bb/2.34 = 0.18
Answers
Answer
0.18b = 2.34
Step-by-step explanation
Let's call b to the bill
The tip is 18% of the bill. To find the 18 percent of a number, we need to multiply this number by 18 and then divide by 100. In this case, the tip is:
[tex]\begin{gathered} tip=\frac{18}{100}b \\ tip=0.18b \end{gathered}[/tex]The amount of the tip is $2.34, then:
[tex]0.18b=2.34[/tex]Find the area bounded by the given curves. y=x², y=4 Options:32/3 31/3 34/3 37/3
Answers
We have to find the area within the given curves.
We have to integrate the difference between the two functions.
First, we have to find the intersections between the curves to know the interval for which we will integrate.
We then write:
[tex]\begin{gathered} y_1=y_2 \\ x^2=4\Rightarrow x_i=-2,x_f=2 \end{gathered}[/tex]We will integrate in the interval [-2, 2]. In this interval, the function y=4 is greater than y=x^2, so we will integrate the difference of the functions as:
[tex]\begin{gathered} A=\int ^2_{-2}\lbrack y_2(x)-y_1(x)\rbrack dx \\ A=\int ^2_{-2}(4-x^2)dx \\ A=4x-\frac{x^3}{3}+C \\ A=(4\cdot(2)-\frac{(2)^3}{3})-(4\cdot(-2)-\frac{(-2)^3}{3}) \\ A=(8-\frac{8}{3})-(-8+\frac{8}{3}) \\ A=8-\frac{8}{3}+8-\frac{8}{3} \\ A=16-\frac{16}{3} \\ A=\frac{48-16}{3} \\ A=\frac{32}{3} \end{gathered}[/tex]The area bounded by the curves y=x^2 and y=4 is A = 32/3.