Answer:
\(3-4i\)
Step-by-step explanation:
The x-axis represents \(x\) and \(x\) is 3. The y-axis represents \(iy\) and \(y\) is -4 so \(iy\) is -4i.
A complex number is a number system that extends the real numbers with a particular element labelled "i" known as the imaginary unit. The complex number that is represented by the graph is 3-4i.
What is a complex number?A complex number is a number system that extends the real numbers with a particular element labelled "i" known as the imaginary unit, and satisfies the equation i² = 1; every complex number may be represented as a + bi, where a and b are real numbers.
The complex numbers are represented on the graph where x represents the real number marked across the horizontal axis.
The y represents the imaginary part of the number and is marked across the vertical axis.
Hence, the complex number that is represented by the graph is 3-4i.
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prove the LL theorem for right triangles
Answer:
Leg Leg or LL Theorem is the theorem which can be used to prove the congruence of two right triangles.
Step-by-step explanation:
if the legs of one right triangle are congruent to the legs of another right triangle them the two right triangles are congruent the principal is known as leg leg theorem. Hope this helps!!!
constant of proportionality
Answer:
4.2
Step-by-step explanation:
Constant of proportionality = y/x = 8.4 / 2 = 4.2
A popular streaming service surveyed all of the students at a school about the number of TV shows they streamed
last Friday night, then recorded the results.
Let M = the number of TV shows streamed last Friday night.
Number of Shows Streamed
0
1
2
3
Probability
0.095 0.203 0.326 0.187
Calculate the median of M. Use the histogram to corroborate your choice of the distribution's shape.
Since the shape of the distribution for number of TV shows streamed is
we expect the median
to be
the mean number of TV-shows streamed. This is confirmed when we calculate the
median to be compared to the mean of 2.187 TV shows streamed. The shape of the histogram supports the
relationship of the mean and the median because the mean is
4
0.174
5
0.015
Answer:
Step-by-step explanation:
To find the median, we need to find the middle value when the data is arranged in increasing order. We can use the cumulative probability to do this:
Number of Shows Streamed Probability Cumulative Probability
0 0.095 0.095
1 0.203 0.298
2 0.326 0.624
3 0.187 0.811
Since the cumulative probability for 2 is the smallest value greater than 0.5, the median is 2. Therefore, the median number of TV shows streamed is 2.
The histogram appears to have a roughly symmetric shape, which supports the assumption that the distribution is approximately normal.
Question: Add the decimals
591.79+528.192 =
312.7+2.566 =
235.977+61.889
Answer:
1. 1119.982
2. 315.266
3. 297.866
Answer:
1. 1119.982
2. 315.266
3. 297.866
prime factorisation 545 divisible method
Answer:
Prime Factors of 545 are 5, 109, and usually expressed as 5 x 109. 4.
hope this is right! :) -liaa
What is the solution to 2x^2+8x=x^2-16?
x=4
x=-2
х=2
х=4
Question: What is the solution to 2x^2+8x=x^2-16?
Answer: x=-4 is what I got I'm not sure if u meant to put one of the 4's as -4 but yeah I got -4 and did it twice and got -4 again. Hope that helped.
What is the area of the square that measures 3.1 m on each side
The area of the square with a side length of 3.1 meters is 9.61 square meters.
To find the area of a square, we need to multiply the length of one side by itself. In this case, the square has a side length of 3.1 m.
Area of a square = side length × side length
Substituting the given side length into the formula:
Area = 3.1 m × 3.1 m
To perform the calculation:
Area = 9.61 m²
It's worth noting that when calculating the area, we are working with squared units. In this case, the side length is in meters, so the area is expressed in square meters (m²). The area represents the amount of space enclosed within the square.
Remember, to find the area of any square, you simply need to multiply the length of one side by itself.
The area of the square with a side length of 3.1 meters is 9.61 square meters.
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Enter an equality that matches the number line model. Use x as your variable.
Answer
x < - 3
Explanation
X is a number less than 3
The table represents a linear function f(x) in the equation represents a function g(x):
X - f(x)
-1 - -6
0 - -3
1 - 0
Part A: Write a sentence to compare the slope of the two functions and show the steps you use to determine the slope of f(x) and g(x).
Part B: Which function has a greater y-intercept? Justify your answer.
A: Looking at the last two rows of the table of f(x), the slope is simply (3-0)/(1-0) = 3, while the slope of g(x) is the coefficient of the variable x, which is 7.
B. y-int is the y value when x = 0. f(x) has a y-int of 0, which g(x) is 2. The latter has a greater y-int.
3. Ms. Reyes' class did a survey of 50 students. 20 of the students said comedies
were their favorite type of movie.
What percent of the students preferred comedies?
Answer:
40 percent
Step-by-step explanation:
Use of proportion
50 (2) = 100%
20 (2) = 40%
do the same thing; what you do on the bottom you do on the top too
Answer:
I believe it is 40%.
Step-by-step explanation:
Mary Bought her car for $20,000. After 5 years she decided to sell her car for a 25% increase invalue. What is the price that Mary decided to sell her car for?
Original Car price = $20,000
Price increase after 5 years = 25%
To calculate the price after 5 years, first multiply the original price (20,000) by the percentage increase in decimal form ( divided by 100) to obtain the increase amount:
20,000 x (25/100) = 20,000 x 0.25 = $5000
Finally, add the increase amount to the original price:
20,000+5,000 = $25,000
Help me please and thank you I just need part a and d please
a. To complete the table, we have to assign the corresponding study hours per week to the hours worked per week.
For example, for the first interval 0≤h<4, the credits taken are 18 (according to the first table). When the credits taken are 18, the study hours per week are 39 (according to the second table). It means that for the interval 0≤h<4, the study hours per week is 39.
The values of this table will be, respectively:
39, 32, 24, 21, 17, 14, 12.
d. An student works between 12 and 16 hours every week, that allows him take 15 credits, which means that he has to use 21 hours to study. He wants to study 32 hours per week, that way, he can take 17 credits. To achieve it he needs to reduce its working hours to 4 to 8 hours per week, that way he would be able to take 17 credits and study 32 hours per week.
Determine all minors and cofactors of the matrix A given below (5)
2 −1 1 3
0 1 1 3
2 1 1 0
2 0 −1 −2
there are 28 students in 3b, for math 18 students have an F. How many % is that?
Answer:
64.29%
Step-by-step explanation:
Solving Surface Area Problems
hi, please help me with this question i really need some help
The surface area of the rectangular prism is of 144 m².
What is a rectangular prism?A rectangular prism is a solid that has three dimensions:
Length l.Width w.Height h.It's surface area is given by:
\(S = 2(lw + lh + wh)\)
In this problem, the dimensions are: \(l = w = 6, h = 3\).
Hence:
\(S = 2[6(6) + 6(3) + 6(3)] = 144\)
The surface area of the rectangular prism is of 144 m².
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4,7,14,49, next number is what
A bank pays $15 in interest for every $100 deposited.
The bank pays how much interest?
Answer:
15% interest
Step-by-step explanation:
because it's 15 out of 100 so that would be 15%
50 points for 3 questions. solve and explain please.
(1) The value of x is determined as 16.8.
(2) The measure of length VX is calculated as 4.1.
(3) The measure of angle UWV is 69.5⁰.
What is the value of the missing lengths of the triangle?
The value of the missing lengths of the triangle is calculated by applying the following formula;
(1) For the two similar triangles, the value of x is calculated as follows;
20 / (28 - x) = 30 / x
20x = 30 (28 - x )
20x = 840 - 30x
20x + 30x = 840
50x = 840
x = 840 / 50
x = 16.8
(2) The measure of length VX is calculated by applying trig ratios.
tan 63 = 8 / VX
VX = 8 / tan 63
VX = 4.1
(3) The measure of angle UWV is calculated as follows;
angle T = 360 - (94 + 127) = 139
angle UWV = ¹/₂ x 139 (angle at circumference is half of angle at center)
angle UWV = 69.5⁰
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Help me pleasee! I dont understand this!
Complete the statement. If a transversal intersects two parallel lines, then _____
A) alternate interior angles are always congruent.
B) same-side interior angles are always complementary.
C) same-side exterior angles are always complementary.
D) corresponding angles are always supplementary.
Answer:
B)
Step-by-step explanation:
They are intersected to make a same side interior angle.
Answer:
A) alternate interior angles are always congruent.
Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of μ = 1.1 kg and a standard deviation of o= 4.6 kg.
Complete parts (a) through (c) below.
b. If 25 male college students are randomly selected, find the probability that their mean weight gain during freshman year is between 0 kg and 3 kg.
The probability is
(Round to four decimal places as needed.)
The probability that their mean weight gain during freshman year is between 0 kg and 3 kg is 70%
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
Given,
Amounts of weight that male college students gain during their freshman year are normally distributed
mean of μ = 1.1 kg and
Standard deviation of o= 4.6 kg.
Z score=x-μ/o
=25-1.1/4.6
=23.9/4.6
=5.196
Z score=x-μ/o
=25-1.1/0
=0
Z score=25-1.1/3
=23.9/3
=7.966
By observing the z table the probability that their mean weight gain during freshman year is between 0 kg and 3 kg is 70%
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$2.95notebook;5% tax
Answer:
0.147
Step-by-step explanation:
?/2.95=5/100
5x2.95=14.75
14.75 divided by 100 = 0.147
p^q is logically equivalent to
The logically equivalent statement to p → q is:
~q → ~p
How to find the logically equivalent statement?The conditional statement:
p → q
Assuming p and q are propositions, the conditional statement may be expressed as:
"If p holds true, then q follows suit. "
'
Whenever p is true, q is true as well. This implies that if q is false, then p must also be false.
We can rephrase this statement cleverly using the negative propositions, which include the opposite or contradictory statements.
~p and ~q
These mean:
Not p and Not q respectively.
Then the statement:
"If q is not true, then p is not true"
Is written as:
~q → ~p
So this is the logically equivalent statement.
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The Complete Question
Given a conditional statement p → q, which statement is logically equivalent?
~p → ~q
~q → ~p
q → p
p → ~q
Match each multiplication expression on the left with the best estimate of its product on the right. (80)(30) = 2,400 29.3 x 5.9 81.4 x 32.1 32.9 x 4.81 46.7 x 31.7 59.3 x 3.57 (30)(6) = 180 (30)(5) = 150 (60)(4) = 240 (50)(30) = 1,500 Done
Here is the final matching of multiplication expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9 ≈ 173
81.4 x 32.1 ≈ 2,618
32.9 x 4.81 ≈ 158
46.7 x 31.7 ≈ 1,479
59.3 x 3.57 ≈ 212
Match each multiplication expression on the left with the best estimate of its product on the right:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9
81.4 x 32.1
32.9 x 4.81
46.7 x 31.7
59.3 x 3.57
Matching the expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
Estimates for the remaining expressions:
29.3 x 5.9 ≈ 173.27
81.4 x 32.1 ≈ 2,612.94
32.9 x 4.81 ≈ 158.05
46.7 x 31.7 ≈ 1,480.39
59.3 x 3.57 ≈ 211.46
Matching the expressions with their estimated products:
(80)(30) = 2,400
(30)(6) = 180
(30)(5) = 150
(60)(4) = 240
(50)(30) = 1,500
29.3 x 5.9 ≈ 173.27
81.4 x 32.1 ≈ 2,612.94
32.9 x 4.81 ≈ 158.05
46.7 x 31.7 ≈ 1,480.39
59.3 x 3.57 ≈ 211.46
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What is the length of the midsegment of a trapezoid with bases of length 18 and 28?
The length of the midsegment of a trapezoid with the given bases is.
Answer:
midsegment = 23
Step-by-step explanation:
the midsegment is half the sum of the bases, that is
midsegment = \(\frac{18+28}{2}\) = \(\frac{46}{2}\) = 23
Find the missing length of the triangle.
Answer:
Pitagoras=29
Step-by-step explanation:
H2=21x21+20x20
h2=841
H=29
Which best describes the association between variables x and y?
10
9
8
7
6
Variable y
4
3
2
1
0 1 2
6 8 9 10
Variable x
strong positive
weak positive
strong negative
U is the set of letters of the English alphabet. X is the set of letters in the word 'triangle'. Y is the set of letters in the word 'trapezoid'. Z is the set of letters in the word 'hyperbola'. What is (Y ∩ Z)’ ∩ X? *
Answer:
(Y∩Z)∩X = {r,a,e}
Step-by-step explanation:
U = {a,b,c,d,e,f,............,z)
X = { t,r,i,a,n,g,l,e}
Y = {t,r,a,p,e,z,o,i,d}
Z = {h,y,p,e,r,b,o,l,a}
Firstly,
Y∩Z = {t,r,a,p,e,z,o,i,d} ∩ {h,y,p,e,r,b,o,l,a} [Intersection : Common Elements]
=> Y∩Z = {r,a,p,e,o}
Now,
(Y∩Z)∩X = {r,a,p,e,o} ∩ { t,r,i,a,n,g,l,e}
=> (Y∩Z)∩X = {r,a,e}
Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, -6),A(−8,−6),A, left parenthesis, minus, 8, comma, minus, 6, right parenthesis, comma B(-3,-6)B(−3,−6)B, left parenthesis, minus, 3, comma, minus, 6, right parenthesis, C(-3, -4)C(−3,−4)C, left parenthesis, minus, 3, comma, minus, 4, right parenthesis, and D(-8, -4)D(−8,−4)D, left parenthesis, minus, 8, comma, minus, 4, right parenthesis.
Given these coordinates, what is the length of side ABABA, B of this rectangle?
The length of side AB of this rectangle is 5 units
How to determine the length of side AB of this rectangle??The cooridnates of the rectangle are given as:
A(-8, -6), B(-3,-6), C(-3, -4), and D(-8, -4).
The length of side AB is calculated as;
AB = √(x1 - x2)^2 + (y1 - y2)^2
This gives
AB = √(-8 + 3)^2 + (-6 + 6)^2
Evaluate
AB = 5
Hence, the length of side AB of this rectangle is 5 units
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Complete question
Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, -6), B(-3,-6), C(-3, -4), and D(-8, -4).
Given these coordinates, what is the length of side AB of this rectangle?
A school has 415 third graders and 338 second graders. How many more third
graders are there than second graders?
Answer:
75
Step-by-step explanation:
Answer:
77
Step-by-step explanation:
Just do simple subtraction 415-338=77