help please!
researchers surveyed recent graduates of two different universities about their income. the following two way table displays data for the sample of graduates who responded to the survey.
how many graduates from university a had an income under $20,000?
Answers
The numbers shown on the chart are the number of students for each category.
Looking at the line for Under $20,000 find the number located under University A.
The number located under University A for under $20,000 is 35
The answer would be 35
Answer:
right answer is 160/300
Step-by-step explanation:
Related Questions
In a class of 55 students, 15 students liked Maths but not English and 18 students liked English but
not Maths. If 5 students did not like both, how many students liked both subjects?
Answers
Answer:
17
Step-by-step explanation:
The number of students that liked one more than the other or didn't like either is 15 + 18 + 5, which is 38. The rest of the students in the class liked both subjects. 55 - 38 = 17.
Find the vertex of the function given below.
y = x^2 - 4x + 1
A. (2,-3)
B. (-2, 13)
C. (4,1)
D. (1,5)
Answers
Your answer is B (2,-3)
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match the trinomials with their factors.
a2 + a − 20
a2 − 9a + 20
a2 − 8a − 20
a2 − 12a + 20
a2 − 19a − 20
Factors
Trinomials
(a − 4)(a − 5)
arrowRight
(a − 10)(a − 2)
arrowRight
(a − 4)(a + 5)
arrowRight
(a − 10)(a + 2)
arrowRight
Answers
Answer:
2with1
4with2
1with3
3wth4
The graph of a function f(x) passes through the following points:
(0,2), (1,0),(-1,0)
Which of the following could be f(x)?
O f(x) = - 2x2 + 2
O f(x) = 2x + 2
O f(x) = -27x + 2
O f(x) = - 2x + 2
Answers
Answer:
All of the them excluding f(x)=-27x+2
The required function is [tex]f(x)=-2x^2+2[/tex]. Hence, option a is correct.
Important information:
The graph of a function passes through the points (0,2), (1,0) and (-1,0).Quadratic function:The graph has two x-intercepts (1,0) and (-1,0). It means it is a quadratic function and [tex](x-1)[/tex] and [tex](x+1)[/tex] are two factors.
[tex]f(x)=a(x-1)(x+1)[/tex]
[tex]f(x)=a(x^2-1)[/tex] ...(i)
The graph passes through the point (0,2). Substitute [tex]x=0,f(x)=2[/tex] in the above function.
[tex]2=a(0^2-1)[/tex]
[tex]2=-a[/tex]
[tex]-2=a[/tex]
Substitute [tex]a=-2[/tex] in (i).
[tex]f(x)=-2(x^2-1)[/tex]
[tex]f(x)=-2x^2+2[/tex]
Therefore, the correct option is a.
Find out more about 'Quadratic function' here:
https://brainly.com/question/13965157
Tom's toy box is shown below. The toy box is shaped like a rectangular prism: It has 5 wooden faces and is open on the top.
What is the total surface area of the 5 fades of the toy box that are wooden?
O A 1,100 squares inches
O B 3,009 square inches
O C 900 square inches
O D 255 square inches
Don’t answer if you don’t know, and whoever answers correctly will get Brainliest. :)
Answers
Answer:
O C 900 square inches
If you cannot see my apologies, but you can zoom in!
DO NOT ANSWER IF YOU DO NOT KNOW THE ANSWER!! Whoever answers correctly will get Brainliest! :)
Answers
Answer:
C
Step-by-step explanation:
The sum of the angles is 90
2x + x = 90
3x = 90
x = 30
the angle ABC is 2x, so it means that is the double of x, so it is 60 degrees
Help pleaseeeeeeeeeeee I’ll mark brainlist
Find the volume of a cylinder with diameter 8 and height 10
Find the volume of a cylinder with radius 7 and height 4
Find the volume of a cone with radius 18 and height 6
Find the volume of a cone with diamter 12 and height 8
Answers
Answer:
The volume of a cylinder with diameter 8 and height 10 is 502.65.
The volume of a cylinder with radius 7 and height 4 is 615.75.
The volume of a cone with radius 18 and height 6 is 2035.75.
The volume of a cone with diameter 12 and height 8 is 1206.37.
Only answer if you’re sure :) need full equation. Will give Brainly!
Answers
Answer:
Step-by-step explanation:
Only one answer will do for this question and that is 1.
y/x = 5/5 = 1
y/x = 6/6 = 1
y/x = 1/1 = 1
The one you have to be careful with is when x = 0 y = 0. You can't solve this by using y/x because 0/0 is undefined at this point.
If mBCD = 148°, what is m∠BCD?
74°
32°
148°
106°
Answers
Answer:
Option (1)
Step-by-step explanation:
Given : m(arc BCD) = 148°
By the property,
Inscribed angle formed by an arc measures half the measure of the arc.
m(arc BCD) = 2(m∠BCD)
148° == 2(m∠BCD)
m(∠BCD) = 74°
Therefore, Option (1) will be the correct option.
Solve for x
answer needs to be fraction
Answers
9514 1404 393
Answer:
9/8
Step-by-step explanation:
The triangles are similar, so corresponding sides are proportional.
AB/CB = AD/ED
x/1 = (x+9)/9
9x = x +9 . . . . . . multiply by 9
8x = 9 . . . . . . . . .subtract x
x = 9/8 . . . . . . . . divide by 8
The diagram shows a triangle.
13.4 cm
1
7.6 cm
Work out the area of the triangle.
Answers
Answer:
50.92
Step-by-step explanation:
13.4 x 1 x 7.6=101.84
101.84÷2=50.92
I think that might be it but if I am wrong I am sorry that is just what I learned
Answer:
31.0
Step-by-step explanation:
13.4
+17.6
=====
31.0
Find the product of -2, -4, -6, and , -9
Answers
Answer:
product is 432
Step-by-step explanation:
(-2)(-4)=8
(-6)(-9)=54
(8)(54)=432
what's the area of this shape? i need to hand it in by tomorrow 7:00 AM EST time. please show the work
Answers
Answer:
hope this helped
Step-by-step explanation:
Gain and his three friends want to share 1/3 of a cake equally. Gavin says that each friend will get 1/9 of the cake. Use the drop-down menus to explain wether or not Gavin is correct.
Answers
Gavin is incorrect. To find how much cake each person gets, divide 1/3 by 4 or multiply 1/3 by one-fourth. Therefore, each of the friends gets one-twelfth of the cake.
Good Luck!
Thomas counts the number of cars he sees in the parking lot of the school each hour of the day. He counted the following number of cars the first four hours of the day.
•12 cars the first hour
•24 cars the second hour
•36 cars the third hour
•48 cars the fourth hour
What is true of the function Thomas wrote that represents the number of cars as a function of the number of hours, h? Select all that apply.
Answers
I don’t know if you’re asking that?? I can’t really understand.
Median of 61, 53, 63, 63
Answers
A certain component is critical to the operation of an electrical system and must be replaced immediately upon failure. If the mean lifetime of this type of component is 100 hours and its standard deviation is 30 hours, how many of these components must be in stock so that the probability that the system is in continual operation for the next 2000 hours is at least 0.95?
Answers
Answer:
Step-by-step explanation:
From the given information:
Assuming we have an integer c to represent the components in the stocks.
Thus, the needed probability can be expressed as:
[tex]P(X_1+X_2+ ........ X_c \ge 2000)[/tex]
To break this down, we have:
[tex]P(\sum X_i \ge 2000) = P \Bigg(\dfrac{\sum X_i - 100n}{\sqrt{n \ Var (X)}} \ge \dfrac{2000-100 n }{\sqrt{n \times 900}} \Bigg )[/tex]
[tex]P \Bigg(\dfrac{\sum X_i - 100n}{\sqrt{n \ Var (X)}} \ge \dfrac{2000-100 n }{\sqrt{n \times 900}} \Bigg )= P (Z \ge 0.95 ) \ \ \ because \ Z_{0.05} = -1.65 \\ \\ \\ \dfrac{2000-100 n }{\sqrt{n \times 900}} = -1.65 \\ \\ \\ \dfrac{100\ n-2000 }{\sqrt{900n}} = 1.65 \\ \\ 100 n -1.65 \sqrt{900 n }-2000 = 0[/tex]
By solving the equation:
n = 23
Thus, relating to the needed condition; n ≥ 23
The needed number of the components that should be in stock should be at least 23.
The capacity of a tank is 60 000 litres. It is being filled at a rate of 1250 litres per hour. How long will it take to fill of the 5/8 of the tank?
Answers
Answer:
48
Step-by-step explanation:
60 000 / 1250 = 48
Will give brainliest
Below, the two-way table is given for a
class of students.
Sophomore
Freshmen
Juniors
Seniors
Total
Male
4
6
2
2
Female
3
4
6
3
Total
If a student is selected at random, find the
probability the student is a senior given that it's
female. Round to the nearest whole percent.
[?]%
Answers
Answer:
19%Step-by-step explanation:
Total Females = 3 + 4 + 6 + 3 = 16
Number of female seniors = 3
P ( Female | senior )
number of female seniors / total female = [tex]\frac{3}{16}[/tex]
In percent,
[tex]\frac{3}{16}[/tex] · 100 = 0.1875 · 100 = 18.75%
18.75% rounded to nearest whole percent is 19%
The required probability is 3/4= 75%, the probability the student is a senior given that it's female.
What is the probability?Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.
here, we have,
We have to compute the probability,
P(Female |Junior) because we have to find the probability of the female student and the given condition is that the student is junior.
Determine the total number of juniors. Juniors=2+6=8
Since the number of females who are junior is 6, determine the required probability.
P(Female|Junior)=6/8=3/4
Therefore, the required probability is 3/4 = 75%
To learn more about the probability visit:
brainly.com/question/24756209
#SPJ7
please answer in full process question
In the given figure l ||m and p || q. Find the measure of angles √1,2,3,4
Answers
Step-by-step explanation:
angle 1=68°
angle 3 = 68°
angle 2= 180-68= 112°
angle 4 = 180-68= 112°
how many sides does a polygon have whose total number of diagonals is 20?
Answers
Answer:
there would be 8 sides if there are 20 diagonals
What is the equation of the line through B and C? B = (4,2) C = (-1,-3).
A.y=x+2
B.y=x−2
C.y=−2x+1
D.y=−x+2
Answers
Answer:
y=x-2
Step-by-step explanation:
I graphed the equations on desmos and saw which one had those ordered pairs on the line.
NEED HELP LOL
if i have an 80% in a class for the first semester and a 90% in a class for the second semester, what is my grade for the year?
Answers
Your answer is 85%
What is the area of the triangle?
A triangle with a base of 45 inches, height of 33 inches, and side length of 45 inches.
123 inches squared
742.5 inches squared
1,012.5 inches squared
1,485 inches squared
Answers
First multiply 45 x 33 (BxH) then divide by 2
Answer:
742.5 inches squared
Step-by-step explanation:
What is the area of the triangle?
A triangle with a base of 45 inches, height of 33 inches, and side length of 45 inches.
123 inches squared
742.5 inches squared
1,012.5 inches squared
1,485 inches squared
A bakery made 100 donuts, in the display case, 40/100 were chocolate, 3/10 were glazed and cinnamon. which fraction of the donuts were cinnamon?
Answers
Explanation:
100-40 = 60 and 3 of those were glazed so that leaves us with 57
Answer:
57/100
Step-by-step explanation:
Please HELP!!!!! Will give brainlyest!!! (Image attached.)
Answers
Answer:
18 because you use the middle section which explains how many rolls are needed
The average square of toilet paper measures 4.1" x 4.1." If one roll of toilet paper has 329 squares, what is the total area of a complete roll of toilet paper
Answers
Answer:
5,530.49[tex]inches^{2}[/tex]
Step-by-step explanation:
4.1x4.1=16.81
16.81x329
Luz has 2 red, 2 white, and 3 blue marbles in a cup. If she draws two marbles at random and does not replace the first
one, find the probability of a white marble and then a blue marble
Answers
Answer:
2 she draws it they are not real
PLEASE I NEED THIS ASAP I AM GONNA GET KICKED OUT OF CLASS The following dot plots shows the number of hours of sleep employees got before a major sale at three stores. Each dot represents a different employee.
Order the stores from least to greatest typical number of hours of sleep per employee.
Put the graph with the least typical value on top.
Answers
Answer:
1. the graph i can't see the name off (this is the least)
2. Quality Plus
3. Peacful Purchases
Step-by-step explanation:
Answer:
better buy than Q plus than p.p
Step-by-step explanation:
You randomly select one card from a 52-card deckFind the probability of selecting a black ace or a red nine
Answers
Answer:
2/52 + 2/52 = 4/52