Answers
Answer:
a = 0.1b = -0.1Step-by-step explanation:
It may be easier to find the sum, then "rationalize" the denominator.
[tex]\dfrac{2i}{2+i}-\dfrac{3i}{3+i}=\dfrac{2i(3+i)-3i(2+i)}{(2+i)(3+i)}=\dfrac{6i+2i^2-6i-3i^2}{6+5i+i^2}\\\\=\dfrac{1}{5+5i}=\dfrac{5-5i}{(5+5i)(5-5i)}=\dfrac{5-5i}{25+25}=\dfrac{5-5i}{50}\\\\=\boxed{0.1-0.1i}[/tex]
__
Of course, it doesn't hurt to have a suitable calculator.
Related Questions
Please help me with all thank you I’ll mark Brainly please put A. B. C. D next to the answer
Answers
Answer:
A. 1.9
B. 3.5
C. 4.2
D. 4.9
I'M KINDA SURE
Step-by-step explanation:
Those images aren't good enough, I can't really get a good look. Basically, if there are nine little lines between each whole number, then each little line represents a tenth of a whole number, or 0.1. If there are four little lines between each whole number, then each little lines is 0.2. So, you just count up from the whole number below the value. For A, start at 1.0 and count up, each little line is 0.1 (if there are nine lines between each whole number), and figure out where A lies. Hope it helped, wish I could give a definite answer.
7th grade math help me pleaseee
Answers
(b) 4 x 4 x 4
(c) 5 x 5
In triangle JKL, if angle J is seven less than angle L and angle K is 21 less than twice angle L, find the measure of each angle
Answers
Answer:
j=45 k=83 L=52
Step-by-step explanation:
j=x-7
k=2x-21
L=x
x-7+2x-21+x=180
4x-28=180
4x=208
x=52
The measure of the angles are; J = 48, K = 57 and L = 75
What is linear pair?Linear pair of angles are produced when two lines intersect each other at a point. The sum of angles of the linear pair is always 180 degrees.
In order to determine the measure of these angles, we have to set J as x. then find the measure of all of these angles.
J = x
K = x + 9
L = 2x - 21
Now, we can add them all together and set equal to 180;
x + x + 9 + 2x - 21 = 180
4x - 12 = 180
4x = 192
x = 48
Now that we have;
J = x = 48
K = x + 9 = 48 + 9 = 57
L = 2x - 21 = 2(48) - 21 = 96 - 21
L = 75
Hence, The measure of the angles are; J = 48, K = 57 and L = 75
Learn more about angles;
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What type of angle are angles 1 and 14
Answers
Answer:
1 is 45. 14 is 90
Step-by-step explanation:
Karen spent a total of $15.45 on a trip to the movies. She spent $5.00 on a daily bus pass, and $3.95 on movie snacks. How much did she spend on her movie ticket? I NEEE THIS ANSWERD NOW PLEASE AND THANK YOU
Answers
Answer:
The answer is 24.4
Step-by-step explanation:
If you add 15.45, 5.00 and 3.95 you get 24.4
Answer:
I think it's 6.50
Step-by-step explanation: 15.45-5.00=10.45-3.95=6.50
mother is m years old,and she is 4 times old as her daughter.How much older is mother then daughter.
Answers
Answer:
The mother is 3d older than the daughter
Step-by-step explanation:
Given
Represent the mother's age with m
and
The daughter's age with d
Required
Determine how much older is the mother
First, we need to calculate the mother's age
[tex]m = 4 * d[/tex]
[tex]m = 4d[/tex]
Next, we calculate their age difference
[tex]Age\ Difference = m - d[/tex]
Substitute 4d for m, we have:
[tex]Age\ Difference = 4d - d[/tex]
[tex]Age\ Difference = 3d[/tex]
Hence, the mother is 3d older than the daughter
6
7
What are the coordinates of point A?
5
4
1
12
13
4
5
Answers
Answer:
I think your answer is 5,4
Hope this helps!
3/4x + 1 = - 1/2 can someone answer pls
Answers
Answer:
-1/2
Step-by-step explanation:
Subtract 1 from both sides of the equation
Simplify
Multiply all terms by the same value to eliminate fraction denominators
simplify
divide both sides of the equation by the same term
simplify
Therefore, you get -1/2
Answer:
I believe x = -2.
Step-by-step explanation:
7. A recipe for a smoothie calls for 5 cups of strawberries for every 2 cups of bananas. The line represents the relationship between the amount of strawberries and the amount of bananas needed to make a smoothie according to this recipe. The point (1, 2.5) is on the line. Show your reasoning.
Answers
Answer/Step-by-step explanation:
This is a proportional relationship between amount of strawberries and the amount of bananas needed in making smoothie.
Thus, a constant of proportionality, k, is a ratio that exist between both quantities.
k = y/x = amount of strawberry/amount of bananas.
Since we are given that a recipe of smoothie contains 5 cups of strawberries for every 2 cups of bananas, therefore,
k = ⁵/2 = 2.5.
Any point that will be on the line shown must have the same value of k (y/x).
Thus, given the point (1, 2.5). The ratio between y and x is:
k = 2.5/1 = 2.5.
Since this also shows the same constant of proportionality as 2.5, therefore, the point is also on the line.
Answer/Step-by-step explanation:
This is a proportional relationship between amount of strawberries and the amount of bananas needed in making smoothie.
Thus, a constant of proportionality, k, is a ratio that exist between both quantities.
k = y/x = amount of strawberry/amount of bananas.
Since we are given that a recipe of smoothie contains 5 cups of strawberries for every 2 cups of bananas, therefore,
k = ⁵/2 = 2.5.
Any point that will be on the line shown must have the same value of k (y/x).
Thus, given the point (1, 2.5). The ratio between y and x is:
k = 2.5/1 = 2.5.
Since this also shows the same constant of proportionality as 2.5, therefore, the point is also on the line.
Two squares as shown below
Answers
Answer:
3rd one
Step-by-step explanation:
any 2 squares are congruent since all four sides of any square are congruent
Which product is negative?
(-3/8)(-5/7)(1/4)
(3/8)(-5/7)(-1/4)
(3/8)(5/7)(1/4)
(-3/8)(-5/7)(-1/4)
Answers
Answer:
The third one is the answer
Step-by-step explanation:
hope that helps
(−3/8(−5/7))(−1/4)
= −15/224
Answer:
The third one!
Step-by-step explanation:
Martha states that –6 is a rational number. Which is a correct explanation for this statement? The number –6 is the opposite of 6. The number –6 is a negative integer. The number –6 can be written as StartFraction negative 6 over 1 EndFraction. The number –6 is less than 0.
Answers
Answer: The number –6 is a negative integer.
Step-by-step explanation:
All integers are rational numbers.
For numbers 1a - 1c, circle YES or NO for each statement using the table below.
Answers
Answer: yes no no
Step-by-step explanation: cuz cuz cuz then cuz
whatsy the answer giving brainliest
Answers
Answer:
D
Step-by-step explanation:
You dont know what the number is, so replace that with the variable X. Now, more than is a reversal term and it means to add. So, the equation will be
x + 44
Hope this helps you!! :)
Krutika and Natasha win some money and share it in the ratio 3:1. Krutika gets £52 more than Natasha. How much did Natasha get?
Answers
Answer:
Step-by-step explanation:
We know that Krutika’s share is three times Natasha’s because they are split in a 3:1 ratio. So we can say:
K=3N
We also know that Krutika’s share is £52 more than Natasha’s:
K= (N+£52)
Substituting what we know about K allows us to reduce the equation to one variable:
3N=N+£52
Clean that up by subtracting N from both sides, leaving us with variables only on one side of the equation.
2N=£52
Which means that we can divide both sides by two to get our answer.
N=£26.
So, of the original £104, Krutika got £78 and Natasha got £26.
If you know that a 30% increase in a quanity is 50, how can you find the original quanity?
Answers
Is 7 1/5 a whole number a integer or a rational number
Answers
describe the effect of change on the area of the rectangle if the base and height are both multiplied by 1/2
Answers
Answer:
The area would decrease
Step-by-step explanation:
So if the base was 4ft and the height was 2ft then the area would be 8ft^2. because area is base times height. so if 4 times 1/2 is 2 and 2 time 1/2 is 1 so the area would be 2ft^2
The perimeter of a
rectangle is 40 inches. The
length is 8 inches. What is
the width?
Answers
Answer:
I think the width would be 12 in
Step-by-step explanation:
2/3 cup of sugar for 24 cookies equal how many cup in 1 cookie?
Answers
Answer:
0.02777777777
Step-by-step explanation: 2/3 divided by 24 = 0.02777777777
4/√8+3
please this little guy wants to disturb me,help, thanks.
Answers
Answer:
[tex] \sqrt{2} + 3[/tex]
Step-by-step explanation:
SIMPLIFY the radical expression...
SO IT'S
[tex] \frac{4}{2 \sqrt{2} } + 3[/tex]
Reduce the fraction with 2
Now it's
[tex] \frac{2}{ \sqrt{2} } + 3[/tex]
Rationalize the denominator...
SO IT WILL BE
[tex] \sqrt{2} + 3[/tex]
EASY EXPLANATION...
GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...
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The area of a circle with radius r is given by A = π r2. Find the area of a circle with radius 7 centimeters. Use 3.14 for π..
Answers
Step-by-step explanation:
Hey there!
Given;
Radius of a circle (r) = 7cm
Now;
We know that;
Area of circle (a) = π*(r^2)
= 3.14*(7^2)
= 3.14*49
= 153.86 cm^2
Therefore, the area of a circle is 153.86 cm^2.
Hope it helps...
Select the correct awnser
Answers
Answer:
A
Step-by-step explanation:
The number of geese at a city park in the year 2015 was 132. The population is declining by 3 geese every two years. The population expressed as a sequence is
Pn=132−3/2n
Find P10. What does this number represent?
Answers
Answer:
Step-by-step explanation:
p10 would be 117 geese
132-3/2(10)
132-15
117
The number represents the population after 10 years
1. Joe uses a jogging trail that runs through a park near his home. The trail is a loop
that is 1 1/2 miles long. On Monday, Joe ran the loop in 1/4 of an hour. What is
Joe's unit rate in miles per hour (miles/hour) for Monday's run?
Answers
Answer:
Step-by-step explanation:
Give me a sec to work it out
Please help!! Will give thanks
Question is in photo!
Answers
Answer:
linear
Step-by-step explanation:
its increasing at a steady rate each year. hope it helps!!!!
There are 30 students in the class. Eleven have blue eyes.
Fifteen have brown hair. Three students have both blue
eyes and brown hair. How many students have neither blue
eyes nor brown hair?
I HAVE A ANSWER BUT DONT KNOW IF ITS RIGHT HELP MEEE!
Answers
Graph the image of the figure after a dilation with a scale factor of ½ centered at (4, 8).
Answers
Answer:
A(4.5 , 7) B(6.5 , 7) C(6.5 , 4) D(2 , 4)
Step-by-step explanation:
Hope this helps!
The splitting apart of one cell to form two new cells is called ____
meiosis
fusion
mitosis
Answers
mitosis
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell. divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
Answer:
mitosis
Step-by-step explanation:
Simplify the following expression:
-13^2=?
Answers
-13²
Write the exponentiation as a multiplication
-13×13
Multiply the numbers
-169
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