Answer:
x = -1.129i, -0.241i, 0.241i o 1.129i.
Tenga en cuenta que i = √(-1), i es el representante de un número complejo.
x = -1.129i, -0.241i, 0.241i or 1.129i.
Note that i = √(-1), i is the representative of a complex number.
Step-by-step explanation:
Pregunta correcta
¿Me pueden ayudar en esta ecuación biquadratica, por favor: 9x⁴ = —12x² - 6/9
Solución
9x⁴ = —12x² - 6/9
9x⁴ + 12x² + 6/9 = 0
multiplicar por 9
81x⁴ + 108x² + 6 = 0
Deje x² = y, entonces x⁴ = y²
81y² + 108y + 6 = 0
Resolviendo esta ecuación cuadrática
y = -0.0581 o y = -1.275
Recordemos, x² = y
x = ±√y
Si y = -0.0581
x = ± √(-0.0581) = ± 0.241i = 0.241i o -0.241i
Si y = -1.275
x = ± √(-1.275) = ± 1.129i = 1.129i o -1.129i
x = -1.129i, -0.241i, 0.241i o 1.129i.
Tenga en cuenta que i = √(-1), i es el representante de un número complejo.
¡¡¡Espero que esto ayude!!!
Correct Question
Can you help me in this biquadratic equation, please: 9x⁴ = —12x² — 6/9
Solution
9x⁴ = —12x² — 6/9
9x⁴ + 12x² + 6/9 = 0
multiply through by 9
81x⁴ + 108x² + 6 = 0
Let x² = y, then x⁴ = y²
81y² + 108y + 6 = 0
Solving this quadratic equation
y = -0.0581 or y = -1.275
Recall, x² = y
x = ±√y
If y = 0.0581
x = ±√(-0.0581) = ±0.241
If y = -1.275
x = ± √(-1.275) = ± 1.129i = 1.129i or -1.129i
Hence x = -1.129i, -0.241i, 0.241i or 1.129i.
Note that i = √(-1), i is the representative of a complex number.
Hope this Helps!!
2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.
On the Venn diagram, which region(s) represent the union of Set A and Set B (A⋃B)?
II
I and III
I, II, and III
I, II, III, and IV
Answer:
(A⋃B) = I, II, and III (C)
Step-by-step explanation:
Venn diagram is used to demonstrate the relationship between two or three sets. It enables visual organisation of data in a set.
From the information:
Set A = {I}
Set B = {II}
Set A⋂B = {III}
Where ⋂ means intersection.
A⋂B = objects that belong to set A and set B
Objects not belonging to any set = 4
U = Universal set
(A⋃B) means objects that belong to set A or set B
The objects that belong to set A or set B = I, II, and III
(A⋃B) = I, II, and III (C)
Answer:
The answer is C
Step-by-step explanation:
I took the test
Find the volume of a prism that is 5 m long, 40 cm wide, and 2500 mm high.
Answer:
5.0 [tex]m^3[/tex]
Step-by-step explanation:
The volume of a rectangular prism is given as:
V = L * W * H
where L = length
W = width
H = height
Put all the dimensions in the same unit, metre (m).
Length = 5 m
Width = 40 cm = 40 / 100 = 0.4 m
Height = 2500 mm = 2500/1000 = 2.5 m
The volume of the prism is:
V = 5 * 0.4 * 2.5 = 5.0 [tex]m^3[/tex]
y = 4x – 6
can someone find me the slope for this thanks
Answer:
Slope = m = 4
Step-by-step explanation:
y = 4x-6
Comparing this with the standard slope-intercept equation:
[tex]y = mx+b[/tex]
Where m is the slope and b is the y-intercept.
So, we get:
Slope = m = 4
Answer:
4
Step-by-step explanation:
The equation of a line has a formula.
y = mx + b
Where m is the slope, and b is the y-intercept.
The equation for this line is given:
y = 4x + - 6
m = 4
b = -6
4 is the slope, and -6 is the y-intercept.
It’s urgent plz answer it
Answer: D
Step-by-step explanation:
The increase in temperature is positive, and the absolute value is always positive. So |-8 - 23| is your answer.
Suppose that you are given a decision situation with three possible states of nature: S1, S2, and S3. The prior probabilities are P(S1) = 0.16, P(S2) = 0.57, and P(S3) = 0.27. With sample information I, P(I | S1) = 0.13, P(I | S2) = 0.07, and P(I | S3) = 0.19. Compute the revised or posterior probabilities: P(S1 | I), P(S2 | I), and P(S3 | I). If required, round your answers to four decimal places.
I NEED HELP PLEASEEEE!!! I don’t understand how you do this.
Please see the attached picture for full solution....
Hope it helps...
Good luck on your assignment...
Confused? About this question
Answer:
Step-by-step explanation:
Which statement correctly relates the standard deviation of the two data sets below? Data set 1 Data set 2 1 2 2 2 3 3 3 3 6 4 4 Answer choices: A.) The standard deviation of Data Set 1 is less than the standard deviation of Data Set 2. B.) The standard deviation of Data Set 1 is equal to the standard deviation of Data Set 2. C.) The standard deviation of Data Set 1 is about twice the standard deviation of Data Set 2.
Answer:
C.) The standard deviation of Data Set 1 is about twice the standard deviation of Data Set 2.
Step-by-step explanation:
Data Set 1: 1,2,3,3,6Data Set 2: 2,2,3,3,4,4Data Set 1
[tex]\mu =\dfrac{1+2+3+3+6}{5}= \dfrac{15}{5}=3[/tex]
[tex]S$tandard Deviation, \sigma =\sqrt{\dfrac{\sum (x-\mu)^2}{N}}[/tex]
[tex]\sigma =\sqrt{\dfrac{(1-3)^2+(2-3)^2+(3-3)^2+(3-3)^2+(6-3)^2}{5}}\\=\sqrt{\dfrac{4+1+0+0+9}{5}}\\=\sqrt{\dfrac{14}{5}}\\\\=1.67[/tex]
Data Set 2
[tex]\mu =\dfrac{2+2+3+3+4+4}{6}= \dfrac{18}{6}=3[/tex]
[tex]\sigma =\sqrt{\dfrac{(2-3)^2+(2-3)^2+(3-3)^2+(3-3)^2+(4-3)^2+(4-3)^2}{6}}\\=\sqrt{\dfrac{1+1+0+0+1+1}{6}}\\=\sqrt{\dfrac{4}{5}}\\\\=0.89[/tex]
0.89 X 2=1.78 which is close to 1.67
Therefore, the standard deviation of Data Set 1 is about twice the standard deviation of Data Set 2.
Please I need help asap! A car rental company's standard charge includes an initial fee plus an additional fee for each mile driven. The standard charge (in dollars) is given by the function s=14.95+0.40M, where m is the number of miles driven. The company also offers an option to insure the car against damage. The insurance charge (in dollars) is given by the function i=5.80+0.25M. Let c be the total charge (in dollars) for a rental that includes insurance. Write an equation relating c to m. Simplify your answer as much as possible.
Answer:
a
Step-by-step explanation:
URGENT!!!!! LAST TWO QUESTIONS!!!!!!! WILL GIVE BRANLIEST!!!AT LEAST TAKE A LOOK!!!!!! PLS HELP!!!!
1. A man whose height is 1.8 m casts a shadow that is 2.9 m in length. What is the height of a building that casts a shadow of 11.3 m?
(1 PICTURE)
A) 8 m
B) 6 m
C) 5 m
D) 7 m
2. Given the diagram below, find the height of the shorter tree. (SECOND PIC)
A) 12 m
B) 10 m
C) 16 m
D)14 m
Answer:
D and B
Step-by-step explanation:
These are similar triangle problems. You can divide the corresponding sides to find the ratio, and apply it to all of the triangle's sides.
Q1
h = 11.3/2.9*1.8 = 7.0137931
Q2
h = 5/25*50 = 10
50 birds peck grain. The first bird pecked 40 granules; the second bird pecked 60 granules; and each of the following birds pecked the mean of the granules that were pecked by all the previous birdies. How many granules did the 50th bird peck?
Answer:
Step-by-step explanation:
50 granules was pecked by the 50th bird
Answer:
50.
Step-by-step explanation:
As you can see the third bird pecks 60 + 40 /2 = 50 granules. The fourth bird thus pecks 60 + 40 + 50 /3 = 50 granules. The fifth bird pecks 60 + 50 + 50 + 40/4 = 50 granules. As you can see, it will always be 50 after this.
In the linear equation y = 2x - 8, the slope of the line is
Answer:
2
Step-by-step explanation:
Answer
Anything in front of the x. Everything else is irrelevant unless it changes the value of the number in front of the x.
In this case the slope is 2.
New Question
If the equation was given as 3y = 6x - 8, then the slope would be
y = 6/3x - 8/3
y = 2x - 8/3 which turns out to be 2 not 6
If f(x) = x and g(x) = 2x + 7, what is g(x)
when x = -6?
Answer:
g(-6) = -5
Step-by-step explanation:
g(x) = 2x + 7
Let x = -6
g(-6) = 2(-6) +7
= -12 +7
= -5
Answer:
-5
Step-by-step explanation:
g(x) = 2x + 7
Put x as -6.
g(-6) = 2(-6) + 7
g(-6) = -12 + 7
g(-6) = -5
The volume of a cube is 8 cm'. find th
length of one of its sides
Find the volume of a cube whose length
Answer:
side length a = 2 cm
Step-by-step explanation:
side length a = 2 cm
face diagonal f = 2.8284271247462 cm
solid diagonal d = 3.4641016151378 cm
surface area S = 24 cm^2
volume V = 8 cm^3
James wants to tile his floor using tiles in the shape of a trapezoid to make the pattern a little more interesting he has decided to cut the tiles in half along the median to top base of each time is 12 inches in length and turn bottom base is 16 inches
Answer: 14 inches
Step-by-step explanation:
Given the following :
James wants to cut a floor tile in the shape of a trapezium with the following dimension :
Top base = 12 inches
Bottom base = 16 inches
To obtain the medan, we take the average of the two bases :
(top base + bottom base) / 2
(12 inches + 16 inches) / 2
28 inches / 2
= 14 inches.
Which type of transformation is shown?
The transformation is a
transformation.
How do the angle measures and side lengths compare?
The angle measures of rectangle QRST are
the angles measures of rectangle Q'R'S'T'.
The side lengths of rectangle QRST are
the side lengths of rectangle Q'R'S'T'.
Answer:
Which type of transformation is shown?
The transformation is a refelction , a type or rigid transformation.
How do the angle measures and side lengths compare?
The angle measures of rectangle QRST equal to are the angles measures of rectangle Q'R'S'T'.
The side lengths of rectangle QRST equal to are the side lengths of rectangle Q'R'S'T'
Step-by-step explanation:
on edgenuity 2020
Answer:
1)Reflection. a type of rigid
2)equal to
3equal to
Step-by-step explanation:
just did the assignment on edge, hope this helps
Please help with this question
Answer:
Line BC
Step-by-step explanation:
Opposite means whatever is exactly parallel to angle a.
In this case, we notice BC to satisfy that rule.
Hope this helps.
Good Luck
Answer:
Option F
Step-by-step explanation:
<A is opposite to Side BC "only".
What fraction of an hour is 38 minutes?
Give your answer in its simplest form.
Answer:
[tex]\frac{19}{30}Hours[/tex]
Step-by-step explanation:
=> 38 minutes
To express 38 minutes in the fraction of an hour, we'll divide it by 60
=> [tex]\frac{38}{60} Hours[/tex]
In Simplest Form:
=> [tex]\frac{19}{30}Hours[/tex]
Answer:
Step-by-step explanation:
38/60
=19/30
Someone helps…………………
Answer:
The third choice is correct
Step-by-step explanation:
Domain > or equal to -3, and range is less than or equal to -2
please solve
thankyou in advance x
Answer:
For the first one,
x=6 and y=16
Step-by-step explanation:
If I think of any more then I will tell you
find five rational numbers between 5/4 and 2
Answer:
29/20, 33/20, 7/4, 37/20, 39/20.
Hope this helps.
Answer:
26/20 ; 27/20 ; 28/20 ; 29/20 ; 30/20
Step-by-step explanation:
First we try to give both number the same denominator like this :
5/4 = (5*5)/(4*5) = 25/20
2 = 2/1 = (2*20)/(1*20) = 40/20
we get :
5/4 = 25/20 < 26/20 < 27/20 < 28/20 <29/20 < 30/20 < 40/20 = 2
The dual bar chart shows the hair colour of boys and girls in a year group. What fraction of the students are girls? Give your answer in its simplest form
Answer:
5/11
Step-by-step explanation:
Black= 22 b+17 g
Brown= 4 b +18 g
Blonde= 25 b+ 10 g
Red= 21 b+ 15 g
Total number= 22+17+4+18+25+10+21+15= 132
Number of girls= 17+18+10+15= 60
Girls are 60/132= 2 × 2 × 3 × 5/ 2 × 2 × 3 × 11= 5/11 of all students
Aria and her children went into a bakery and will buy donuts and brownies. She must buy at least 6 donuts and brownies altogetherWrite an inequality that would represent the possible values for the number of donuts purchased, d, and the number of brownies purchased, b.
Answer:
Inequality for donuts and brownies is;
d ≥ 1 ≤ b
Step-by-step explanation:
We are told that aria will buy donuts and brownies.
We are also told that, number of donuts is d while number of brownies is b.
We are also told that she must by at least a total of 6 donuts and brownies together. Which means that the sum of d and b must not be 6 or greater than 6.
So the inequality will be;
d + b ≥ 6
Thus, for the donut and brownies, inequality would be; d ≥ 1 ≤ b
Answer: d+b≥6 is the correct answer trust me
obi's age is twice oba's age 4 years ago obi was three times as old as oba. find their ages
Answer:
Obi's age is 18 and Oba's age is 9
Step-by-step explanation:
Let Obi's age be x and Oba's age be y
Condition 1:
x = 2y -----------(1)
Condition 2:
(x-4) = 3(y-4)
=> x -4 = 3y-12
=> x - 3y = -9 -----(2)
Putting eq (1) in (2)
2y - 3y = -9
=> -y = -9
=> y = 9
Now,
x = 2y
=> x = 2(9)
=> x= 18
Answer:
[tex]8\\4[/tex]
Step-by-step explanation:
Obi's age is [tex]x[/tex].
Oba's age is [tex]2x[/tex].
4 years ago, Obi's age was [tex]x-4[/tex].
4 years after, Obi's age is [tex]2x-4[/tex]
3 times more than Oba's, so [tex]3(x-4)[/tex]
[tex]2x - 4 = 3( x - 4)[/tex]
[tex]2x - 4 = 3x-12[/tex]
[tex]2x - 3x = -12+4[/tex]
[tex]-1x=-8[/tex]
[tex]x=8[/tex]
[tex]x-4\\(8)-4=4[/tex]
Please answer this equation ❤️
Just take the function, and wherever it says 'x', substitute '-3' .
Then it'll say f(-3) = -2(-3)² - 7(-3) + 6 . Surely you can solve that.
As my old Electronic Circuits professor used to tell us, back around 1962:
"If
f(x) = -2x² - 7x + 6
then
f(cow) = -2cow² - 7cow + 6 ."
Of all the things I learned from him, this is the thing I remember most.
Answer:
f(-3)=9Solution,
[tex]f(x) = - 2 {x}^{2} - 7x + 6 \\ f( - 3) = - 2 \times {( - 3)}^{2} - 7 \times ( - 3) + 6 \\ \: \: \: \: \: = - 2 \times 9 - ( - 21) + 6 \\ \: \: \: = - 18 + 21 + 6 \\ \: \: \: = 3 + 6 \\ \: \: \: \: \: = 9[/tex]
hope this helps...
Good luck on your assignment..
Please verify this question if it is good.If it is not good then do it for me please anyone!
Answer:
You are correct! good job!
Step-by-step explanation:
3a + 5b = 3
a + 2b = 13
Answer:
x= -59 y= 36
Step-by-step explanation:
Have the equations mixed up
Put the first equation in the second equation where the x values are the same and y values are the same then work it out.
Hope this helps!
Blocking an experimental design is useful because
Answer:
it controls for multiple variables in an experiment.
Step-by-step explanation:
pls mark as brainliest
if the area of circular pond is 169pi square metres,find the radius of its base.
Answer:
The radius of its base is 13.
Step-by-step explanation:
[tex]A = \pi r^{2} \\169\pi = \pi r^{2} \\\\\frac{169\pi}{\pi} = \frac{\pi r^{2}}{\pi} \\169 = r^{2}\\\sqrt{169} = r\\ 13 = r[/tex]
URGENT HOMEWORK HELP!!
Answer:
A
Step-by-step explanation:
The common difference is simply the constant we add/subtract each time. In this case, the common difference is 3/2 as can be seen from the recursive formula. In other words, each new [tex]n[/tex] will be 3/2 larger than the previous.
The answer is A.
