Answer:
C. 50 - 4x < 36 - 3x
Step-by-step explanation:
Given Z1 and Z2, find the
distance between them.
Z1 = 2 – 3i and Z2 = 4 + i
Answer:
The distance between given points is: √20
Step-by-step explanation:
The given numbers are complex numbers. In order to find the distance between two numbers in complex plain, their difference is taken and then modulus is applied.
Given numbers are:
[tex]z_1 = 2-3i\\z_2 =4+i[/tex]
The difference will be calculated as:
[tex]z_2-z_1 = (4+i)-(2-3i)\\= 4+i-2+3i\\=2+4i[/tex]
The distance will be:
[tex]d = \sqrt{(2)^2+(4)^2}\\= \sqrt{4+16}\\=\sqrt{20}[/tex]
Hence,
The distance between given points is: √20
The number of bacteria present in a culture was 1,000. Each hour , the number of bacteria in the culture was eight times the number that was present at the start of the preceding hour, as shown in the table
Answer:
the answer is d
Step-by-step explanation:
if you go threw your toutorial you will see that
A pair of shoes is currently priced at $55.00. If the store manager marks it down to $22.00, by what percent did he mark down the shoes?
Answer:
60%
Step-by-step explanation:
55 - 22 = 33
33/55 = 0.6
0.6*100 = 60%
Linear, exponential, or neither?
y = 4(1+.04)*
Help pleaseeeee
Find the unit rate.
Hours
Miles
X
y
1
40
2
80
3
120
It’s one of these
O 120 miles / 3 hours
O 80 miles / 2 hours
O 40 miles / 1 hour
Answer:
The answer is 40miles in 1 hour
Michaela solved a system of linear equations that had no solution. One of the equations was x + y = 5. The other equation had a y-intercept of −2. What was the other equation?
Answer:
We have a system of equations with no solutions.
One of the equations is:
x + y = 5.
Isolating y in one side of the equation, we get:
y = 5 - x
And the other equation has an y-intercept of -2, the equation can be written as:
y = a*x - 2.
Then the system will be:
y = -1*x + 5
y = a*x - 2
The solution of a system of equations is a point where the graphs of both functions intersect.
Then if both of these lines are parallel, the lines will never intersect, then the second equation must be parallel to the first one.
And two lines are parallel if they have the same slope.
Then the other equation will be:
y = -x - 2
Given: △ABD cong △CBD. Find each value. (#6)
Answer: m<C= 31
Step-by-step explanation:
To find m<C: Since the triangles are equal, we know that (4x+10) is equal to 90. Then when you put them equal to each other and solve for x you get X=20. Then all you have to do is plug that x value (20) into the equation for the angle of C (x+11). Then you get that C=31 degrees.
819 ÷ ________ = 8.19 (3 points)
a
101
b
102
c
103
d
104
Are those the only options because 819 divided by 100 is 8.19
5 divided by 1/10 is what?
A random sample of 300 circuits generated 13 defectives. Use the data to test the hypothesis Upper H Subscript 0 Baseline colon p equals 0.05 against Use . Find the P-value for the test.
Complete Question
A random sample of 300 circuits generated 13 defectives. a. Use the data to test
[tex]H_o : p = 0.05[/tex]
Versus
[tex]H_1 : p \ne 0.05[/tex]
Use α = 0.05. Find the P-value for the test
Answer:
The p-value is [tex]p-value = 0.5949[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 300
The number of defective circuits is k = 13
Generally the sample proportion of defective circuits is mathematically represented as
[tex]\^ p = \frac{k}{n}[/tex]
=> [tex]\^ p = \frac{13}{300}[/tex]
=> [tex]\^ p = 0.0433[/tex]
Generally the standard Error is mathematically represented as
[tex]SE = \sqrt{\frac{p(1- p)}{n} }[/tex]
=> [tex]SE = \sqrt{\frac{0.05(1- 0.05)}{300} }[/tex]
=> [tex]SE = 0.0126[/tex]
Generally the test statistics is mathematically represented as
[tex]z = \frac{\^ p - p }{SE}[/tex]
=> [tex]z = \frac{0.0433 - 0.05 }{0.0126}[/tex]
=> [tex]z = -0.5317[/tex]
From the z table the area under the normal curve to the left corresponding to -0.5317 is
[tex](P < -0.5317 ) = 0.29747[/tex]
Generally the p-value is mathematically represented as
[tex]p-value = 2 * P(Z < -0.5317 )[/tex]
=> [tex]p-value = 2 * 0.29747[/tex]
=> [tex]p-value = 0.5949[/tex]
If a single card is drawn from a standard 52-card deck, in how many ways
can it be a heart or a King? Use the general additive principle.
Answer:
22
Step-by-step explanation:
If a fair coin is tossed 9 times, what is the probability, to the nearest thousandth, of
getting exactly 4 tails?
Answer:
=0.444
Step-by-step explanation:
probability= expected outcome = 4
total outcome 9
4 into decimal = 0.444( to the nearest thousandths- 3dp)
9
The probability is 24.609%
What is probability?The mathematical subject of probability deals with the outcomes of random events. The term "probability" refers to the possibility or chance of an outcome. It clarifies the likelihood of a particular occurrence. We use phrases like "It will probably rain today," "he will probably pass the test," "there is very little chance of getting a storm tonight," and "most probably the price of onion will go high again" all the time.
Given a coin is tossed 9 times, and to find the probability of exact four heads,
the probability for condition given by binomial probability ⁿCₓ[(p)ˣ(q)ⁿ⁻ˣ]
where p is probability of tail = 1/2 (favorable outcome)
q is probability of head = 1/2: (1 - p)
n = total outcome = 9
x = 4
ⁿCₓ[(p)ⁿ(q)ⁿ⁻ˣ] = ⁹C₄[(1/2)⁴(1/2)⁵]
= [tex]\frac{9!}{4!(9 - 4)!}[/tex] [1/16 x 1/32]
= [tex]\frac{9 x 8 x7 x 6 x 5!}{4! x 5!}[/tex](512)
126/512 = 0.24609
= 24.609%
Hence the probability, to the nearest thousandth is 24.609%.
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A word in a book is 0.009 meter long. Kai looked at the word with a lens that made it look 100 times as large as the actual word. How long did the word look?
Answer:
0.9 meters long.
Step-by-step explanation:
0.009m times 100=0.9 m
Can someone help I numbered them poorly also there will be some left over numbers that weren’t used, I’ll mark brainliest if u give a small explanation
Answer:
Step-by-step explanation:
Slope m = rise / run = ([tex]y_{2}[/tex] - [tex]y_{1}[/tex]) / ([tex]x_{2}[/tex] - [tex]x_{1}[/tex])
1). (-4,3)
(4, - 1)
m = (-1 - 3) / (4 + 4) = - 1/2
2). (-1, 1)
(2, - 5)
m = (- 5 - 1) / (2 + 1) = - 2
3). (6, 4)
(5, 4)
m = (4 - 4) / (5 - 6) = 0 (graph is horizontal line)
4). (1, 4)
(4, 1)
m = (1 - 4) / (4 - 1) = - 1
5). - 3/4
6). 4/3
Now is your turn. You can do it!!!
7). (1, 1)
(2, 2)
m = ____
8). ( __ , __ )
( __ , __ )
m = _____
9). (0, 2)
(0, 4)
m = (4 - 2) / (0 - 0) = undefine slope or no slope (graph is vertical line)
10).
Question 6
5 pts
Maria and Sarah were in charge of selling tickets to the class play. Maria sold 91
tickets and Sarah sold 70 tickets. What is the ratio of the number of tickets Maria sold
to the total number of tickets sold?
Answer:
Maria sold 56.5% of the total quantity of tickets sold.
Step-by-step explanation:
Given that between Maria and Sarah they both sold 161 tickets (91 + 70), and that of those 161 Maria sold 91 while Sarah sold 70, to determine the percentage of tickets that Maria sold over the total amount, the following crossed multiplication must be performed:
161 = 100
91 = X
((91 x 100) / 161) = X
9,100 / 161 = X
56.5 = X
Therefore, Maria sold 56.5% of the tickets sold.
When discordant pairs exceed concordant pairs in a P-Q relationship, Kendall's tau reports a(n) ________ association between the variables under study.a. positive.
b. weak.
c. negative.
d. strong.
e. inverse.
Answer:
a. positive.
Step-by-step explanation:
Matching and discordant pairs are used to describe the relationship between pairs of observations. To calculate matched and discordant pairs, data is treated as ordinal values. Therefore these are suitable for your application. The number of concordant and discordant pairs is used in Kendall's tau calculations, whose purpose is to determine the relationship among two ordinal variables.
If the direction of the classifications is the same, the pairs are concordant.
A pair of observations is discordant, suppose the subject being with an increased value on one variable is lower on the other.
SO; When discordant pairs exceed concordant pairs in a P-Q relationship, Kendall's tau reports a(n) positive association between the variables under study.
4.(03.06) Choose the point-slope form of the equation below that represents the line that passes through the points (-3, 2) and (2, 1). O y + 3 = -5(x - 2) Oy - 2 = -5(x + 3) Oy+3 = - ] (x - 2) Oy-2=-****
Answer:the answer is D y-2= 1/5(x+3)
Step-by-step explanation:I took the test
y-2=-1/5(x+3) is the point-slope form of the equation below that represents the line that passes through the points (-3, 2) and (2, 1).
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The given two points are (-3, 2) and (2, 1)
m=1-2/2+3
=-1/5
So slope is -1/5.
Now let us find the point slope form
y-y₁=m(x-x₁)
y-2=-1/5(x+3)
Hence, y-2=-1/5(x+3) is the point-slope form of the equation below that represents the line that passes through the points (-3, 2) and (2, 1).
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Simplify the expression 10a-7b+11+8b-b-12
Answer:
10a-16b+23
Step-by-step explanation:
First, you see what terms are alike. Then you add those like terms. For example with this expression, you add 7b+b+8b, resulting in 16b. If you are confused by the single b variable standing alone, there is basically a 1 in front of it, so you add it as 1b. 11 and 12 are like terms, for they don't have any variables attached to them. 10a stands alone because no other terms have an a variable. The simplified expression is 10a-16b+23.
Your welcome <3
The simplified value of the expression 10a - 7b + 11 + 8b - b - 12 is 1a - 1.
Given Expression:
10a-7b+11+8b-b-12
To simplify expression, first solve the like terms as
10a-7b+11+8b-b-12
= 10a -7b + 8b - b - 12 + 11
Now, -7b + 8b - b = -7b + 7b = 0
and, -12 + 11 = -1
Substituting the simplified value in 10a-7b+11+8b-b-12 gives
= 10a + 0 - 1
= 10a - 1
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How do you do 20 / 4/5
Answer:
25
Step-by-step explanation:
you can write this equation as 20 ÷ [tex]\frac{4}{5}[/tex]
so change the division sign to multiplication by flipping the divisor ( [tex]\frac{4}{5}[/tex] )
this means you now have 20 x [tex]\frac{5}{4}[/tex]
so you can simplify 20 and 4, this makes the 4 into a 1 and the 20 into a 5
you now have 5 x [tex]\frac{5}{1}[/tex]
this is the same thing as 5 x 5
multiply it, and you can see that the answer is 25
Admission to a school play costs BD 12.50 . Form an inequality and solve it to find the maximum number of tickets Aslam can buy with BD 250. *
a) 18
b) 20
C) 22
Answer:
Step-by-step explanation:
C) 22
Help Please ( and leave on how you solved it ) ":(
view pic below
Answer:
The value of x = 10.
Step-by-step explanation:
From the given triangle,
The value of angle M = (3x + 28)°The value of angle K = (5x - 18)°The value of angle L = 90°We know that the sum of a triangle is 180°.
i.e.
K + L + M = 180°
(5x - 18)° + 90° + (3x + 28)° = 180°
[tex]5x-18+90+3x+28=180[/tex]
[tex]5x+3x-18+90+28=180[/tex]
[tex]8x-18+90+28=180[/tex]
[tex]8x+100=180[/tex]
[tex]8x=80[/tex]
[tex]\frac{8x}{8}=\frac{80}{8}[/tex]
[tex]x=10[/tex]
Therefore, the value of x = 10
5x+2y=16 in function form
Answer:
y=-2.5x+8
Step-by-step explanation:
Subtract 5x from both sides
2y=-5x+16
divide both sides by two
y=-2.5x+8
see image help me as fast as possible, please
Jenny and Chris share some prize money in the ratio 2:4. The prize money totaled $3000. How much did Chris win?
Help please need it today
A 2.5-meter piece of framing lumber has been used to cut a piece 1.65 meters long. How much of the original piece of lumber remains, in meters?
Answer:
0.85 of the original piece of lumber remains.
Step-by-step explanation:
Well, this lumber piece of lumber started as 2.5 meters long. Then, a 1.65 meter piece was cut off of it. All we need to do is subtract.
2.5 - 1.65 =
2.50 - 1.65 = 0.85.
Therefore, 0.85 of the original piece of lumber remains.
Hope this helps! :)
How many cups of whole wheat flour are required to make 35 biscuits?
Answer:
8 baby
Step-by-step explanation:
There are 18 green, 11 white, 15 purple, and 7 blue gum balls in a gum ball machine.
What is the probability that you will get a purple OR a blue gum ball if one is selected at random?
P(Purple OR Blue Gum ball) = ?
Make sure your answer is a SIMPLIFIED FRACTION if possible.
I WILLLLL GIVE THE FIRST 3 PPL THAT ANSWER A BRAINLIEST!!!!!!!!!
Answer:
%43
Step-by-step explanation:
I'm pretty sure? Its just what I think
Help?? What decimal place value is .7 in
Answer:
tenth
Step-by-step explanation:
it just is
6-6x = 5x-9x + 15
The value of x is
Answer:
[tex]Exact Form\\x= -\frac{9}{2} \\\\Decimal form:\\x= -4.5\\\\Mixed number form:\\x=-4\frac{1}{2}[/tex]
Hope this helps :)Choose the slope-intercept equation of the line that passes through the point shown and is perpendicular to the line shown.
a) y = x + 1
b) y = - x -
c) y = - x - 3
d) y = x +
Answer:
c
Step-by-step explanation:
Just trust me ive had ths question before