Answers
the answer is 80 take the positive and negative and use the sign change rule
Answer:
50
Step-by-step explanation:
First, find the square roots.
[tex]\sqrt{-16} =4i[/tex]
[tex]\sqrt{-64} =8i[/tex]
Remember: i stands for [tex]\sqrt{-1}[/tex]
Then use the FOIL method to multiply.
(3+4i)(6-8i)
18-24i+24i-32i²
i²= -1, so :
18+32
50
I have no idea what the other person did, but its wrong.
Related Questions
How would you find the area? (6.1.B.4.4)
Answers
Step-by-step explanation:
What is the numbers to find the arra
Multiple Choice
Which of the values below has
a 1 with a value that is 10 times
less than the 1 in 15,009?
A. 51,900
B. 34,187
C. 20,319
D. 17,205
Answers
Answer:
A 51900
BUT ITS ALRIGHT
Step-by-step explanation:
BUT ITS B
If LN=54 and LM=31 find MN
Answers
Answer:
MN=85
Step-by-step explanation:
M___L___N
MN= LN+LM = 54+ 31 = 85
I hope I helped you^_^
I need to do this fast
Answers
you can use photo-math it solves equations with steps
Find the flux of the vector field F = 〈e-z,4z,6xy) across the curved sides of the surface S = {(x,y,z): z= cos y, lys π, 0sxs4} . Normal vectors point upward. Set up the integral that gives the flux as a double integral over a region R in the xy-plane.
Answers
I'll go ahead and assume you meant to say that S is the surface given by
[tex]S = \left\{(x,y,z) \mid z = \cos(y)\text{ with } 0\le y\le \pi\text{ and }0\le x\le4\right\}[/tex]
This immediately gives us a parameterization for the surface,
[tex]\vec r(x, y) = \left\langle x, y, \cos(y)\right \rangle[/tex]
The upward-pointing normal vector to this surface is then
[tex]\vec n = \dfrac{\partial\vec r}{\partial x} \times \dfrac{\partial\vec r}{\partial y} = \left\langle0,\sin(y),1\right\rangle[/tex]
Then the flux of [tex]\vec F(x,y,z) = \left\langle e^{-z}, 4z, 6xy\right\rangle[/tex] across S is
[tex]\displaystyle \iint_S \vec F(x,y,z)\cdot\mathrm d\vec s = \int_0^4\int_0^\pi \vec F(x,y,\cos(y))\cdot\vec n\,\mathrm dy\,\mathrm dx \\\\ = \int_0^4\int_0^\pi \left\langle e^{-\cos(y)},4\cos(y),6xy\right\rangle \cdot \left\langle0,\sin(y),1\right\rangle \,\mathrm dy\,\mathrm dx \\\\ = \int_0^4\int_0^\pi (4\sin(y)\cos(y)+6xy)\,\mathrm dy\,\mathrm dx \\\\ = 2 \int_0^4\int_0^\pi (\sin(2y) + 3xy)\,\mathrm dy\,\mathrm dx = \boxed{24\pi^2}[/tex]
this is hcf and lcm pls help me answer needed fast
Answers
Answer:
I HOPE IT WILL HELP YOU A LOT.
solve square root equation.
2x^2-2=-12
Answers
Answer:
x=+/- root 5..................
Answer:
[tex]2 {x}^{2} - 2 = 12 \\ 2 {x}^{2} = 12 + 2 \\2 {x}^{2} = 14 \\ {x}^{2} = \frac{14}{2} = 7 \\ {x}^{2} = 7 \\ x = \sqrt{7} \\ thank \: ou[/tex]
Compare the numbers 6x10-6 to 2x10-8.
Which number has the greater value?
Which number has the lesser value?
How many times greater is the greater number?
Answers
Answer:
6×10-6 have greater value than 2×10-8
Step-by-step explanation:
6×10-6
60-6
=54
And
2×10-8
20-8
=12
Thus, 6×10-6 had the greatest value by 42 more than 2×10-8
6×10-6 have greater value than 2×10-8
The greater value is 600 x 10⁻⁸. And the lesser value is 2 x 10⁻⁸. The number 600 x 10⁻⁸ is 300 times greater number 2 x 10⁻⁸.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
Compare the numbers 6 x 10⁻⁶ and 2 x 10⁻⁸.
Then the numbers can be written as,
⇒ 6 x 10⁻⁶ and 2 x 10⁻⁸
⇒ 600 x 10⁻⁸ and 2 x 10⁻⁸
The number 600 x 10⁻⁸ times greater than the number 2 x 10⁻⁸ will be
⇒ 600 x 10⁻⁸ / 2 x 10⁻⁸
⇒ 300
The greater value is 600 x 10⁻⁸. And the lesser value is 2 x 10⁻⁸. The number 600 x 10⁻⁸ is 300 times greater number 2 x 10⁻⁸.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ5
Factor 4m - 10m^3
PLZ HELP
Answers
Answer:
2m(2-5m^2)
Step-by-step explanation:
removing the common factors (2 and m), leave you with 2m multiplied by (2-m^2)
Which group of numbers even or odd include more prime numbers? Why?
Answers
The First group i.e 1-10 include more prime numbers .(2,3,5,7,1)
Because it has the basic inputs of every number Like 15 consists of 3×5Answer:
Odd numbers.Step-by-step explanation:
There is one even prime number - 2.
All the rest primes are odd numbers.
Therefore odd numbers include more primes.
mycaliforniapermit.com
i need answeres for this site
Answers
Answer:
this app is for learning not for driving schools also i dont know abth it sry if i soud rude!
this site is for driving schools selection i guess
which is small 1.2 or 1.7
Answers
Answer:
1.2 is less so your answer should be 1.2.
= 1.2
If you're measuring mountains, they're both huge.
If you're measuring green peas, they're both small.
Either way, 1.2 is smaller than 1.7 .
Graph the following line:
b. y= -5/2
Answers
\
\
\
From the center of the graph (called the origin) count up 5 units and left 2 units. Then graph that point. Then to graph another point, from the origin, move right 2 units and down 5 units then plot a point. Your graph should look kind of like this:
\
.
\
.
\
.
Remember: you know you did this correctly when you can draw a STRAIGHT line that connects all the dots
Hope this helped :)
PLEASE HELP ILL GIVE BRAINLIEST AND POINTS PLEASEE
Answers
Step-by-step explanation:
I think the Answer is option A
Please Help! I will give you the brainiest and a lot of points!
-Show work (You only have to do the odd numbers)
Answers
#19
[tex]\\ \sf\longmapsto \dfrac{7}{5}[/tex]
#20
[tex]\\ \sf\longmapsto \dfrac{9}{5}[/tex]
#21
[tex]\\ \sf\longmapsto \dfrac{11}{7}[/tex]
#22
[tex]\\ \sf\longmapsto \dfrac{12}{7}[/tex]
#23
[tex]\\ \sf\longmapsto \dfrac{2}{2}=1[/tex]
#24
[tex]\\ \sf\longmapsto \dfrac{3}{2}[/tex]
#25
[tex]\\ \sf\longmapsto \dfrac{5}{2}[/tex]
#26
[tex]\\ \sf\longmapsto \dfrac{6}{2}=3[/tex]
#27
[tex]\\ \sf\longmapsto \dfrac{8}{2}=4[/tex]
#28
[tex]\\ \sf\longmapsto \dfrac{9}{2}[/tex]
#29
[tex]\\ \sf\longmapsto \dfrac{13}{4}[/tex]
#30
[tex]\\ \sf\longmapsto \dfrac{19}{4}[/tex]
#31
[tex]\\ \sf\longmapsto \dfrac{37}{6}[/tex]
#32
[tex]\\ \sf\longmapsto \dfrac{25}{6}[/tex]
Answer:
19. 7 to base five => 12
21. 11 to base seven => 14
23. 2 to base two=> 10
25. 5 to base two => 101
27. 8 to base two => 1000
29. 13 to base four => 31
31. 37 to base six => 101
33. 87 to base five => 322
35. 108 to base four => 1230
37. 19 to base two => 10011
4. Diana bought a piece of cloth 48 inches wide and 1 yard long. It cost $12. She cut off one-fourth and used it to make a tablecloth. From the remaining material, she used a piece that was 12 inches wide and 12 inches long to make a scarf and a piece 1.5 feet by 2 feet to make the cover for a pillow. Her sister saw Diana's sewing efforts and said she really liked the material. She wanted to buy what was left to do some sewing
of her own. Diana was willing to sell the leftover material for the rate that she had paid for it. How much should she charge her sister?
Use Pollyanna’s 4 steps:
1) understand the problem
2) devise a plan
3) carry out the plan
4) look back
Answers
Step-by-step explanation:
Understand the problem,look back ,carry out the plan, device a plan
The area of a 2D form is the amount of space within its perimeter. The amount that Diana should charge is $5.
What is an area?The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.
Area of the original cloth = 48 inches × 1 yard
= 48 inches × 36 inches
= 1,728 inches²
The cloth used for the tablecloth = one-fourth of 1,728 inches²
= (1/4) × 1,728 inches²
= 432 inches²
The cloth used to make the Scarf = 12 inches × 12 inches
= 144 inches²
The cloth used to make the pillow = 1.5 feet × 2 feet
= 18 inches × 24 inches
= 432 inches²
Remaining cloth
= Area of the original cloth - cloth used for a tablecloth - cloth used to make the Scarf - cloth used to make the pillow
= 1728 inches² - 432 inches² - 144 inches² - 432 inches²
= 720 inches²
Cost of the remaining cloth = 720 inches² × ($12 / 1,728 inches²)
= $5
Hence, the amount that Diana should charge is $5.
Learn more about the Area here:
https://brainly.com/question/1631786
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which expressions have a sum of -12 right answer only!!
a. -13+(-1 )
b. 2+ (-14 )
c. -5+17
d. -4+(- 8
Answers
Answer:
B and D
Step-by-step explanation:
2+-14 = -12
-4+(- 8) = -12
because its a negative number it wont go up it will go down
Answer:
[tex]a) - 13 + - 1 = = - 13 - 1 = - 14 \\ b)2 + - 1 4 = 2 - 14 = - 12 \\ c) - 5 + 17 = 12 \\ d) - 4 + - 8 = - 12 \\ b \: and \: d \: represent \: - 12as \: answer \\ thankyou[/tex]
9. The graph of which the following equations has x-intercepts of 4 and -4?
(1 Point)
O y + 4 = x
O y - 4 = x
O y + 16 = x2
O x + 16 = y2
Answers
The first two each work with one of the points, but not the other, so they’re not the answer.
The last one doesn’t work for either point.
The third one, y+16=x^2, works for both.
0 + 16 = (4)^2 is true.
0 + 16 = (-4)^2 is true.
how to round 11,295 to the nearest ten thousand?
Answers
HEY I NEED HELP 7th grade math
Answers
B: 475
hope this helps!!
70 POINTS!!! SOLVE TO EARN!!!
Answers
Josh: 75
Claire: 25
Add them all up and you get 157
Answer:
37, 60, 30Step-by-step explanation:
Ann - a, Josh - j, Claire - c
a = j + 7j = 2ca + j + c = 157Substitute a and j into last equation and solve for c:
(j + 7) + 2c + c = 1572c + 7 + 3c = 1575c = 150c = 30Find a and j:
a = 30 + 7 = 37j = *30 = 60Which set does not contain an irrational number?
Answers
All answers have one of those.
Then look at the square roots. Are there any square roots that clean up nicely, like sqrt(9) or sqrt(16) would? If so, that’s not really an irrational number, because it cleans up to a rational value.
Which answer has that?
Answer:
the first 1 {-2.5 .200. 1.23456789 .etc}
how to differentiate ?
Answers
Use the power, product, and chain rules:
[tex]y = x^2 (3x-1)^3[/tex]
• product rule
[tex]\dfrac{\mathrm dy}{\mathrm dx} = \dfrac{\mathrm d(x^2)}{\mathrm dx}\times(3x-1)^3 + x^2\times\dfrac{\mathrm d(3x-1)^3}{\mathrm dx}[/tex]
• power rule for the first term, and power/chain rules for the second term:
[tex]\dfrac{\mathrm dy}{\mathrm dx} = 2x\times(3x-1)^3 + x^2\times3(x-1)^2\times\dfrac{\mathrm d(3x-1)}{\mathrm dx}[/tex]
• power rule
[tex]\dfrac{\mathrm dy}{\mathrm dx} = 2x\times(3x-1)^3 + x^2\times3(3x-1)^2\times3[/tex]
Now simplify.
[tex]\dfrac{\mathrm dy}{\mathrm dx} = 2x(3x-1)^3 + 9x^2(3x-1)^2 \\\\ \dfrac{\mathrm dy}{\mathrm dx} = x(3x-1)^2 \times (2(3x-1) + 9x) \\\\ \boxed{\dfrac{\mathrm dy}{\mathrm dx} = x(3x-1)^2(15x-2)} [/tex]
You could also use logarithmic differentiation, which involves taking logarithms of both sides and differentiating with the chain rule.
On the right side, the logarithm of a product can be expanded as a sum of logarithms. Then use other properties of logarithms to simplify
[tex]\ln(y) = \ln\left(x^2(3x-1)^3\right) \\\\ \ln(y) = \ln\left(x^2\right) + \ln\left((3x-1)^3\right) \\\\ \ln(y) = 2\ln(x) + 3\ln(3x-1)[/tex]
Differentiate both sides and you end up with the same derivative:
[tex]\dfrac1y\dfrac{\mathrm dy}{\mathrm dx} = \dfrac2x + \dfrac9{3x-1} \\\\ \dfrac1y\dfrac{\mathrm dy}{\mathrm dx} = \dfrac{15x-2}{x(3x-1)} \\\\ \dfrac{\mathrm dy}{\mathrm dx} = \dfrac{15x-2}{x(3x-1)} \times x^2(3x-1)^3 \\\\ \dfrac{\mathrm dy}{\mathrm dx} = x(15x-2)(3x-1)^2[/tex]
In a sample, 11 out of 25 marbles are
green. Predict approximately how
many green marbles are in a box of
100 marbles.
Answers
Answer:
11x4=44
Step-by-step explanation:
Cus 11/25, change the 25 to 100 by multiplying by 4 so you also have to multiply 11 by 4 too and yeah...answer
Answer:44
Step-by-step explanation: You want to multiply your denominator by a certain number that will turn it into 100. In this case 25 time 4 is 100. so now that you've multiplied your denominator you also need to multiply your numerator by 4. So the next step would be 11 times 4, which is 44.
Arrange the farthest. 3.345 meters 3.35 meters. 3.3 meters
Answers
Answer:
first add then divide
Step-by-step explanation:
I NEED HELP PLEASEE OR ELSE IMA FAIL MY CLASS
Answers
Q1
(52 × 3 ) + ( 34 × 6 ) + ( 20 × 8 ) = 156 + 204 + 160
= 520 $ the students raised on Saturday
Q2
to find the amount raised by the students we multiply each kind of flower bunches with the price to get the total of each kind then we sum the total of each kind to get how much they raised
note : (write this in ur own words )
sorry for my bad English
What is 125% of 3600?
Answers
Answer:
4500
Step-by-step explanation:
125% = [tex]\frac{125}{100}[/tex] = 1.25 , then
1.25 × 3600 = 4500
solve square root equation.
b^2=-169
Answers
[tex]\\ \sf\longmapsto b^2=-169[/tex]
[tex]\\ \sf\longmapsto b=\sqrt{-169}[/tex]
[tex]\\ \sf\longmapsto b=\sqrt{-(13)^2}[/tex]
[tex]\\ \sf\longmapsto b=13i[/tex]
Answer:-13
Step-by-step explanation:
Solve the simultaneous equations. 6x+5y=20 5x+2y=21
Answers
that is the first one
help…………………plzdamamsmkdkdkkdkd
Answers
Answer:
31 add all together
Step-by-step explanation:
