Answers
Answer: What are you asking ?
Step-by-step explanation:
Related Questions
Example 3
he two In a class of 60 students, 46 passed Biology
and 42 passed Chemistry. Every student
ariable passed at least one of the two subjects. How
many students passed in both subjects?
Solution
Let U = students in the class
cps
Answers
Answer:
28 students passed in both subjects.
Step-by-step explanation:
We solve this question treating each event as a Venn set.
I am going to say that:
Event A: Passed Biology.
Event B: Passed Chemistry.
46 passed Biology
This means that [tex]A = 46[/tex]
42 passed Chemistry.
This means that [tex]B = 42[/tex]
Every student passed at least one of the two subjects.
This means that [tex]A \cup B = 60[/tex]
How many students passed in both subjects?
This is:
[tex]A \cap B = A + B - A \cup B[/tex]
From the values we have above
[tex]A \cap B = 46 + 42 - 60 = 28[/tex]
28 students passed in both subjects.
The equation for the circle below is x2 + y2 = 16. What is the length of the
circle's radius?
Answers
Answer:
4
Step-by-step explanation:
The general equation circle is
[tex] {x}^{2} + {y}^{2} = {r}^{2} [/tex]
Where r is the radius
Plug in the equation
[tex] {x}^{2} + {y}^{2} = 16[/tex]
Take the sqr root of 16 tocfind the radius
[tex] \sqrt{16} = 4[/tex]
PART B—- Find the surface area of the figure. PLEASE HELP!!
Just part b!
Answers
Answer:
24 ft^2
Step-by-step explanation:
Surface area is the total area on the surface of the figure.
One side of the cube is 4 ft^2 (2ft*2ft)
there are 6 sides.
4ft^2 * 6 sides is 24 ft^2
Answer the statistical measures and create a box and whiskers plot for the following set of data.
4, 5, 6, 6, 6, 8, 9, 9, 9, 11, 11, 12, 12, 14, 14
4,5,6,6,6,8,9,9,9,11,11,12,12,14,14
Answers
Answer:
B
Step-by-step explanation:
Your answer should be written in paragraph/essay format.
Any sources used should be cited at the bottom of your paper.
All answers should show you have learned something from Unit 9. Material from other units will not be graded for this assignment.
If you are stuck, you can think about the following topics: textile mills, interchangeable parts, the Lowell System, unions, labor reform, steamboats, railroads, coal, the telegraph, and/or new inventions.
A microwave is placed on top of a stand. The stand is 3 feet 9 inches tall, and the microwave is 3 feet 11 inches tall. Together, how tall are they?
Write your answer in feet and inches. Use a number less than 12 for inches.
Answers
11+9= 20 inches
20-12= 8
So 7ft 8 inches tall together
do your thing lilly, your awesome!
Answers
Answer:
8. 12.8
9. 400
Step-by-step explanation:
8. look at it like a square with a rectangle cut out of it, 4*4 = 16, the rectangle needs a base and to find that base 1.5+0.9 = 2.4, 4-2.4 = 1.6, 1.6*2 = 3.2, 16-3.2 = 12.8
9. look at it like a trapezoid with a triangle cut out of it, add the to bases 14+32 = 46, 46*20 = 920 divided by 2 which is 460, and then area subtract the triangle 12*10 = 120 divided by 2 which is 60, so 460-60 = 400
I’m confused need help please
Answers
Answer: The answer is 8
ILL GIVE BRAINIEST ANSWER IM IN A RUSH!!!!!PLEASE AND THANK YOU!
Answers
Answer:
I believe the answer is $52.46
Hope this helps :)
What is the area of the base of the figure
48
45
30
24
Answers
i believe the area is 48 if it's not correct sorry
She decides to use the elimination method to find the solution. She multiplies the second equation by 3 and adds it to the first equation to find 14x = 70, showing her that x = 5. Beyonce finds that y = 4.
Step 1: 3(4x + y = 24) → 12x + 3y = 72
Step 2: 2x – 3y = -2
+ 12x + 3y = 72
14x = 70
14x/14= 70/14 → x = 5
Thinking about this process, Beyonce says out loud, “There are lots of ways I could go about solving this problem. I could do the method above or I could multiply the first equation by -2 and add the second.
Step 1: -2(2x – 3y = -2) → -4x + 6y = 4
Step 2: -4x + 6y = 4
+ 4x + y = 24
7y= 28
7y/7= 28/7 → y = 4
“I seem to find that there is only one solution to the two equations, but I wonder if I will get the same solution if I use a different method?”
If Beyonce uses a different method, would she get the same solution? Be sure to show work or explain your reasoning.
Explain how you know that a system of equations has no solution.
Explain how you know that a system of equations has an infinite number of solutions.
Answers
Answer:
Well it's the same because it's the same problem just worded different it's like saying "May I?" and your sister says "Can I?" It's the same question just different wording.
A boat travels 176 miles in 13
hours (with a constant speed).
How far can it travel in 22 hours
(with the same speed)?
Answers
Answer:
297.84 miles
Step-by-step explanation:
176 miles in 13 hours is 13.5 miles per hour
13.5 * 22 = 297.84
What is the measure of Angle
Answers
Step-by-step explanation:
ΔM + 63° = 180° ------ ( angle sum property )
ΔM = 180° - 63°
ΔM = 117°
------------------------------FOLLOW METhere are two commonly used units of measurement for angles. The more familiar unit of measurement is that of degrees. A circle is divided into 360 equal degrees, so that a right angle is 90°. ... Each degree is divided into 60 equal parts called minutes
From a fifth grader
Which fraction is equivalent to the whole number 8?
A.1/8
B.2/10
C.12/8
D.16/2
Answers
Answer:
D: 16/2
Step-by-step explanation:
you take 16 and divide it by 2 making your answer 8
use the gcf to rewrite the expression 20r+16z
Answers
Answer:
20r + 162= 4(5r + 4z
Hope this helps and is right.
Graph the rational function.
f(x)=4x+6/2+2
Answers
Answer:
my answer is 4x+6/2+2 is 10.3221Answer:
The graph is a line with slope 4 and Y intercept 5.
Step-by-step explanation:
Simplifying gives f(x)=4x+5.
What is the product of 2 and 2 square foot 80
Answers
Answer:
35.7 I believe
Step-by-step explanation:
What is the common multiple of 2,960 6,400 and 2000 with full process
Answers
Answer:
1184000
Step-by-step explanation:
lcm(2960,6400,2000)
prime factor:
[tex]2960=(2^4)(5)(37)\\6400=(2^8)(5^2)\\2000=(2^4)(5^3)[/tex]
Take the largest power of each factor:
[tex](2^8)(5^3)(37^1)\\=1184000[/tex]
3 ⅕ -⅔ divided by 2 ⅘
Answers
Answer:
160/196
Step-by-step explanation:
it would be easier if you converted all fractions to improper fractions
so 3 1/5 would equal 16/5 and 2 4/5 would equal to 14/5
[tex]\frac{14}{5} - \frac{2}{3}[/tex] : to solve this you would need the same common denomenator,
to do this you can multiply 5 and 3 by something to make the lowest common denominator, which would be 15
thus
multiplying first fraction by 3 and the second by 5
42/15 - 10/15 = 32/15
now 32/15 divided by 14/5
the rule for dividing fractions, is flipping the fraction which you will be using to divide, and then multiplying it to the first fraction:
[tex]\frac{32}{14}[/tex] multiplied by [tex]\frac{5}{14}[/tex]
thus, answer is 160/196
hey I could use some help!
Answers
Answer:
b is the right answer
Step-by-step explanation:
Raoul had a bottle that contains 2.2 liters of sparkling water. He pours 300 milliliters of the water from the bottle into a glass. How much sparkling water is left in the bottle?
Answers
Answer:
1.9 liters
Step-by-step explanation:
2200-300 = 1900
If a x b = 2a - 3b + ab, then 3 x 5 + 5 x 3 is equal to?
1. 20
2. 22
3. 24
4. 26
Answers
HELP FIND THE VOLUME
ROUND TO THE NEAREST HUNDRETH
SHOW WORK PLEASE
WILL GIVE BRAINLIEST
Answers
5. Volume of sphere = 4/3 x pi xr ^3
Volume = 4/3 x 3.14 x 2^3 = 33.49 cubic feet.
6 . Volume of cylinder = pi x r^2 x height
Volume = 3.14 x 2^2 x 3 = 37.68 cubic meters
A survey of randomly selected visitors to a mall yielded the following data:
Approved new design for the seating in the food court
Number surveyed
Male
155
254
Female
157
301
Based on this sample, what would be the correct decision and conclusion of a test to determine whether the proportion who approve the design plan for the seating area in the food court is higher for men than it is for women at the 5% level?
a) Reject the null concluding that there is evidence the proportion is higher for men.
b) Reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
c) Do not reject the null hypothesis concluding that there is evidence that the proportion is higher for men.
d) Reject the null concluding that there is evidence the proportion is higher for women.
e) Do not reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
Answers
Answer:
The answer is A
Step-by-step explanation:
Reject the null concluding that there is evidence the proportion is higher for men.
Using the z-distribution, as we are working with proportions, it is found that the correct option is:
b) Reject the null hypothesis concluding that there is no evidence that the proportion is higher for men.
What are the hypothesis tested?At the null hypothesis, it is tested if the proportions are the same, that is:
[tex]H_0: p_M - p_W = 0[/tex]
At the alternative hypothesis, it is tested if it is higher for men, that is:
[tex]H_1: p_M - p_W > 0[/tex]
What is the distribution of the difference of proportions?For each sample, we have that:
[tex]p_M = \frac{155}{254} = 0.6102, s_M = \sqrt{\frac{0.6102(0.3898)}{254}} = 0.0306[/tex]
[tex]p_W = \frac{157}{301} = 0.5216, s_W = \sqrt{\frac{0.5216(0.4784)}{301}} = 0.0288[/tex]
Then, for the distribution of differences, the mean and the standard error are given by:
[tex]\overline{p} = p_M - p_W = 0.6102 - 0.5216 = 0.0886[/tex]
[tex]s = \sqrt{s_M^2 + s_W^2} = \sqrt{0.0306^2 + 0.0288^2} = 0.042[/tex]
What is the test statistic?It is given by:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
In which p = 0 is the value tested at the null hypothesis, hence:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
[tex]z = \frac{0.0886 - 0}{0.042}[/tex]
[tex]z = 2.11[/tex]
What is the decision?Considering a right-tailed test, as we are testing if the proportion is higher than a value, with a significance level of 0.05, the critical value is of [tex]z^{\ast} = 1.645[/tex].
Since the test statistic is greater than the critical value for the right-tailed test, there is enough evidence to reject the null hypothesis that the there is no evidence that the proportion is higher for men, hence option b is correct.
More can be learned about the z-distribution at https://brainly.com/question/26454209
Evaluate 2a-b for a=2 and b=3.
Answers
Answer:
1
Step-by-step explanation:
5. In the diagram above, what is the volume of the rectangular prism?
A. 120 cm
B. 162 cm
C. 324 cm
D 360 cm
Answers
Answer:
The answer is D.
Step:
6*5*12=360
It says if (3,-4) is a point in the terminal side of the angle 0 which one of the following statements is not true
A sin 0= -4/5
B cos 0=3/5
C tan 0=-4/3
D sec 0=5/-4
Answers
Giving 13 points!! Help help help
Answers
Answer:
a. 15
b. 27
c. 4
d. 72
e. 2
Step-by-step explanation:
If you need an explanation lmk! happy to help.
you purchase a bike for$175 the store-bought it from the manufacture for $100 what is the percent markup
Answers
Answer:
Step-by-step explanation:
1/6 x 1/6 whats the answer
Answers
Answer:
1/36
Step-by-step explanation:
what is 50 x356 PLZ HELP MY ANSWER IS 178000 AM I RIGHT