3. Create a Venn diagram or Table with numbers for:
A group of 80 students were asked if they were taking science or art.
10 were taking neither, 50 were taking science, 30 were taking art.

3. Create A Venn Diagram Or Table With Numbers For:A Group Of 80 Students Were Asked If They Were Taking

Answers

Answer 1

Answer:

10 students were taking science and art at the same time.

Step-by-step explanation:

Given that a group of 80 students were asked if they were taking science or art, of which 10 were taking neither, 50 were taking science, and 30 were taking art, to determine how many students take both science and art, the following calculation must be done:

80 - 10 = 70

50 - 30 - 70 = X

80 - 70 = X

10 = X

Therefore, 10 students were taking science and art at the same time.


Related Questions

Please answer the question correctly with factual information for brainliest.

Answers

D. 5cm
Hope that’s right!

you made a batch of 24 cookies for school your brother ate 7 of them without asking you. What fraction of your cookies are left?

Answers

17/24.

Explanation:
24/24 is your original amount.
24 - 7 = 17.
So now you have 17/24! :D

Factorize this fully 20x² +500x+3000​

Answers

Answer:

20(x+15)(x+10)

Step-by-step explanation:

Hi there!

As your question states, we need to fully factor the polynomial: 20x²+500x+3000

These are pretty big numbers; let's pull out the GCF, as that will make it easier to factor

the GCF is 20

so factoring 20 out of the polynomial will get:

20(x²+25x+150)

As you can see, the polynomial inside the parenthesis is a lot easier to factor than the original with really big numbers.

Now use FOIL to factor x²+25x+150 into 2 binomials

25 is the sum of the last terms

150 is the product of the last terms

think: which two numbers add up to 25 but multiply to get 150?

those two numbers are 15 and 10

x²+25x+150 factored is (x+15)(x+10)

but remember we have the 20 in front of x²+25x+150  (or now, (x+15)(x+10))

therefore the fully factored binomial is 20(x+15)(x+10)

Hope this helps! :)

A UW Madison professor is interested in learning about the variance of grades for university students. The professor gathers the sample variance for a random sample of 50 students. From past experience, the professor knows that the population of students is normally distributed. The sample variance that is collected is equal to 80. The professor would like to infer at the 1% significance level that the population variance is less than 100.

a. State the appropriate null and alternative hypothesis.
b. What is the correct test statistic?
c. What is the conclusion of the test?
d. What would be the effect if the professor increased the sample size?

Answers

Answer:

A) H0 : μ = 100  

   H1 :  μ < 100

B)  39.2

C)  We fail to reject null hypothesis

D) If the professor increases the sample size the value of the test statistic will increase .

Step-by-step explanation:

sample variance ( s ) = 80

sample size = 50

At ∝ = 0.01  population variance ( σ )   < 100

a) Hypothesis

H0 : μ = 100  ( Null hypothesis )

H1 :  μ < 100  ( Alternate hypothesis )

b) Determine The correct test statistic

x^2 = ( n-1 ) * s^2/σ^2

      = ( 49 ) * 80^2 / 100^2

      = 39.2

C) Determine the conclusion of the test

The P-value = 0.1596  ( calculated )

The conclusion of the test is that we fail to reject null hypothesis given that

P-value ( 0.1596 ) > ∝ ( 0.01 )  

D) If the professor increases the sample size the value of the test statistic will increase .

ok heres the other one...

Answers

Step-by-step explanation:

Think of every surface as a 2D shape.

you know that

Area of a triangle is: A = 0.5 b h

Area of a square is: A = L x W

You add each area thats exposed

for example: the front and back of the triangle would be (0.5 x 3cm x 8cm) x 2 [since there are two faces]

Is it possible to construct a triangle with the given side lengths?

1 ft, 6 ft, 9 ft
Yes or no?

Answers

No. The two smallest side lengths would have to add up to be bigger than the biggest number, 9.
ANSWER is no

EXPLAINTION

HELP ASAP I WILL MARK BRANLIEST!!!
This probability distribution shows the
number of times a group of people takes
selfies before liking them.
Retakes
o
1
2
3
4
Frequency
27
29
18
14
12
Using this distribution, find the probability that a
person will retake their sexfie exactly 3 times.
p = [?]

Answers

Answer:

0.14

Step-by-step explanation:

0.14 is the probability that a person will retake their sexfie exactly 3 times.

What is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Given

Total frequency = 27+29+18+14+12 = 100

frequency of 3 retakes = 14

p(r) = frequency of 3 retakes/ Total frequency

p(r) = 14/100 = 0.14

To learn more about probability refer to:

https://brainly.com/question/13604758

#SPJ2

A company has machinery calibrated for a certain widget to manufacture the product so that all of the products will average out to a mean weight of 7 grams and a standard deviation of 2 grams. What would you expect as a sampling distribution if you were to take repeated samples of 100 widgets?

Answers

Answer:

By the Central Limit Theorem, the sampling distribution of repeated samples of 100 widgets would be approximately normal with mean 7 grams and standard deviation 0.2 grams.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean weight of 7 grams and a standard deviation of 2 grams.

This means that [tex]\mu = 7, \sigma = 2[/tex]

Sample of 100:

This means that [tex]n = 100, s = \frac{2}{\sqrt{100}} = 0.2[/tex]

What would you expect as a sampling distribution if you were to take repeated samples of 100 widgets?

By the Central Limit Theorem, the sampling distribution of repeated samples of 100 widgets would be approximately normal with mean 7 grams and standard deviation 0.2 grams.


A right triangle has legs with lenghts of 7 units and 12 units. What is the area of the triangle?

Answers

Answer:

area of triangle =1/2 x b x h

Step-by-step explanation:

=1/2 x 7 x 12

= 1/2 x 84

= 42 units

CHECKING YOUR UNDERSTANDING
Choose the letter of the best answer. Write the chosen letter on a separate sheet of
paper
1. A dinner plate has a diameter of 10.2 cm. What is the area of the dinner plate?
A. 81.67 cm
C. 93.84 cm
B. 85.12 cm
D. 100.02 cm
2. A dog is tied to a wooden stake in a yard. His leash is 3 m long, and he runs around
in circles pulling the leash as far as it can go. How much area does the dog have
to run around ?
A. 26.28 m2
C. 29.66 m2
B. 28.26 m2
D. 32.28 m²
3. A storm is expected to hit 7 mi in every direction from a small town of Malabon.
What is the area that the storm will affect?
A. 116.68 mi
C. 150.67 mi
B. 124.83 mi
D. 153.86 mi
4. Every December, an amusement park is constructed in Malabon Robinsons Town
mall. A carousel is the most favorite ride of the kids there. The diameter of the
carousel is 20.5 m. What is the area of the carousel?
A. 329.90 m²
C. 392.90 m2
B. 328.90 m2
D. 391.90 m2
5. A lawn sprinkler sprays water 4.5 ft in every direction as it rotates. What is the area
of the sprinkled lawn?
A. 56.885 ft
C. 63.585 ft
B. 60.855 ft
D. 65.385 ft ​

Answers

Answer:

1) 81.67 cm² (Option A)

2) 28.26 m² (Option B)

3) 153.86 mi.² (Option D)

4) 329.90 m² (Option A)

5) 63.585 ft.² (Option C)

Step-by-step explanation:

GENERAL FORMULAES TO BE USED IN THIS QUESTION :-

Diameter of a circle with radius 'r' = 2r

Area of a circle with radius 'r' = πr²

SOLUTION :-

1) Diameter of the dinner plate = 10.2 cm

Radius of the dinner plate = 10.2/2 = 5.1 cm

Area of the circle = π(5.1)² = 26.01π cm² ≈ 81.67 cm²

2) Length of his leash = 3m

Area the dog has to run around = π(3)² = 9π m² = 28.26 m²

3) Radius of the circular range of storm = 7 mi.

Area of the circular range of storm = π(7)² = 49π mi.² = 153.86 mi.²

4) Diameter of carousel = 20.5 m

Radius of carousel = 20.5/2 = 10.25 m

Area of the carousel = π(10.25)² = 105.0625π m² ≈ 329.90 m²

5) Radius of the range of sprinkler = 4.5 ft.

Area of the range of sprinkler = π(4.5)² = 20.25π ft.² = 63.585 ft.²

A parallelogram has an area of 416 square meters and a base measuring 16 meters,
What is the height of the parallelogram?
The height is ____ m.

Pls help I need this done today!!!
FIRST PERSON TO ANSWER GETS BRAINLYEST WHATEVER ITS CALLED

Answers

Answer:

26 meters

Step-by-step explanation:

a = bh

416 = 16h

Divide both sides by 16

h = 26

26 meters

How do we find the perimeter of a shape 20mm 10mm 20mm 60mm 20mm

Answers

Answer:

130mm

Step-by-step explanation:

I'm pretty sure you mean each of the sides is this length... so I'll go off of that. 20+10+20+60+20 is the addition for this problem.

20+10+20+60+20=130 is the answer.

What number is the best prediction! Please help :(

Answers

Answer:

28

Step-by-step explanation:

Find the measure of angle x, if possible. Round to the nearest tenth. (If not possible, enter IMPOSSIBLE.)

Answers

What is the angle? U need a picture or something.

9 (t + 19) = 7t + 17
What value of t makes the equation true?

Answers

Answer:

9t + 171 = 7t + 17

9t - 7t =17 - 171

2t/2 = -154/2

t = -77

PLEASE ANSWER WHOEVER ANSWERS CORRECT I WILL GIVE 60 POINTS! Graph using as many points as needed y=|x-3|+5

Answers

Answer:

---

Step-by-step explanation:

hope it helps

Answer:

Transition:

1) The vertex point moves 3 steps to the right

2) Then, it goes up 5 steps

This equation is positive so the graph will face upwards.

The vertex will end up as: (3, 5)

The two other points will be:

Point 1 - (2,6)

Point 2 - (4,6)

Find the value of x

Answers

Answer:

Hello! answer: x = 4

Step-by-step explanation:

Because this is a 180 degree angle it will add up to 180 so 8 × 4 = 32 and 32 + 120 = 152 and 7 × 4 = 28 and 28 + 152 = 180 so 4 is x HOPE THAT HELPS!!

180 degree line-

180 = (8x + 120)

-120

60 = 8x

/8

7.5

x = 7.5

7(7.5) = 52.5

write a function rule for the statement. The output is five times the input.

Answers

Answer:

y=5x

Step-by-step explanation:

If the input is x, then the out put is 5x. So y=5x

Solve the equation. 3x + 6 = 24
Ο Α. 2
OB. 4
Ос. 6
O D. 8


Please help ASAP connexus

Answers

Answer:

option no.C 6

Step-by-step explanation:

3x+6=24

3x=24–6

3x=18

x=18/3

x=6

A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 and a two‑tailed test is +1.96. The observed z value from sample data is ‑2.05. The decision made by the researcher based on this information is to _____ the null hypothesis.

Answers

Answer:

The decision made by the researcher based on this information is to reject the null hypothesis.

Step-by-step explanation:

Two-tailed hypothesis test:

Critical value: [tex]z_c[/tex]

Test statistic: z

If [tex]|z| < |z_c|[/tex], we do not reject the null hypothesis.

If [tex]|z| > |z_c|[/tex], we reject the null hypothesis.

In this question:

[tex]z_c = 1.96, z = -2.05, |z| = 2.05[/tex]

Since [tex]|z| > |z_c|[/tex], we reject the null hypothesis.

The decision made by the researcher based on this information is to reject the null hypothesis.

2) What is the volume of a basketball that has a diameter of 15 inches?​

Answers

1767.15 is the correct answer.

Answer choices)
A. (2/3x, 2/3y)
B. (3/2x, 3/2y)
C. (1/2x, 1/2y)
D. (2x, 2y)
Please help me :((

Answers

9514 1404 393

Answer:

  B. (3/2x, 3/2y)

Step-by-step explanation:

It is perhaps easiest to see that B' is 3 grid squares from the origin while B is 2 grid squares from the origin. The scale factor is the ratio of these distances:

  3/2

Dilation about the origin multiplies each coordinate value by the scale factor:

  (x, y) ⇒ (3/2x, 3/2y)

(10, 19), (-13, 9) find distance

Answers

Answer:

1,043 km

Step-by-step explanation:

hi hope you have a good dayy

Answer:

Distance between points (10, 19) and (-13, 9) is 25.0799

Step-by-step explanation:

Input Data :

Point 1 (xA, yA)  = (10, 19)

Point 2 (xB, yB) = (-13, 9)

Formula : Distance between two points = √(xB − xA)^2 + (yB−yA)^2

Solution :

Distance between two points = √(−13−10)^2+(9−19)^2=

√(−23)^2+(−10)^2

= √529+100

= √629

= 25.0799

hope this helps and is right. p.s i really need brainliest :)

Can someone help me with this worksheet? I'm trying to check my daughter's work and I'm not sure how to do this. Showing the work would help me see where and if shes wrong.

Answers

Answer:

Step-by-step explanation:

scam . smď

what is the area of the object above​

Answers

Answer:

62 sq cm

Step-by-step explanation:

if you find the area of the entire shape (12x6) you can then subtract out the cut-out portion (5x2)

72 - 10 = 62

what is the value of x over 20 = 5 over 8

Answers

Answer:

x = 12.5

Step-by-step explanation:

HELPPPP THXX PLAAAAASSSSSSSS

Answers

Answer:

43

Step-by-step explanation:

interior angles add up to 180

please help me with this question

Answers

Answer:

I believe it is 20

Step-by-step explanation:

NO is 10 and NO is equal the bottom of the triangles. There are 2 bottoms of triangles in JK 10x2 would be 20.

Help me please!!!!!!

Answers

B or 2/5
Explanation it’s right

what does • in math mean?

Answers

. Signifies multiplication

multiplication

hope this helped <3

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