in a class of 25 students, 15 of them have a cat, 16 of them have a dog and 3 of them have neither. find the probability that a student has a cat and dog

Answers

Answer 1

Answer:

9/25

Step-by-step explanation:

this is a two sets problem first you find x and subtract it's from the numbers given that is 15 and 16 and when you find them you will get the x which is the number that had both of the cat and the dog and that number is what you're going to use to divide a 25 so that's how I got the 9 / 25


Related Questions

Do |-4] and [4] have the same value?
Yes
No

Answers

Yes they are the same

Answer: Yes

Step-by-step explanation:

[4] is the same as 4.

For |-4|

Short Explanation

The absolute value is the distance between a number and zero. The distance between -4 and 0 is 4 so the result of |-4| is 4

Long Explanation

The absolute value or modulus of a real number, denoted, is the non-negative value of without regard to its sign. Namely, if is positive, and if is negative, and. For example, the absolute value of 3 is 3, and the absolute value of −3 is also 3. The absolute value of a number may be thought of as its distance from zero.

Which graph represents a function? On a coordinate plane, a line with 2 angles crosses the x-axis at (negative .5, 0), the y-axis at (0, 1), turns at (1, 3), crosses the x-axis at (1, 0), turns at (1, negative 2), and crosses the x-axis at (2, 0). On a coordinate plane, a curved line crosses the y-axis at (0, 1.5), the x-axis at (negative 2, 0), and the y-axis at (0, negative 1.5). On a coordinate plane, a line enters the plane at point (negative 5, 4), makes a 90-degree turn at (negative 1, 0), and leaves the plane at point (negative 5, negative 4). On a coordinate plane, a line with an s curve enters the plane at point (negative 3.75, 5), crosses the x-axis at (negative .75, 0), the y-axis at (0, 0), leaves x-axis at (.75, 0), and exits the plane at point (3.75, negative 5).

Answers

Answer:

d

Step-by-step explanation:

Answer:

it is D

Step-by-step explanation:

Leah needs to order some new supplies for the restaurant where she works. The restaurant needs at least 748 knives. There are currently 214 knives. If each set on sale contains 12 knives, write and solve an inequality which can be used to determine ss, the number of sets of knives Leah could buy for the restaurant to have enough knives.

Answers

Answer: s (greater than or equal to) 44.5

Step-by-step explanation:

current # of knives = 214

knives per set = 12

knives needed = 748

# of sets = s

knives per set x (times) # of sets + current # of knives (greater than or equal to) knives needed

12s + 214 (greater than or equal to) 748

SOLVE:

12s + 214 (greater than or equal to) 748

-214 -214

12s (greater than or equal to) 534 you need to divide both sides by 12

s (greater than or equal to) 44.5

helppppppppppp me pleaseeee

Answers

Adherents I love it tho i’m I don’t think you (answer Add the sides)

What is the solution of the equation?
-1 =V
-
3

Answers

Answer:

I think you mean "-1=v-3" which if that is the case the answer is V=4

Step-by-step explanation:

To know what is V.... you got to make remove the -3 and transfer it to the other side, which will change its' sign so it will be +3

the new equation: +3-1 = V

the answer: 2 = v

Meaning that V is 2,

hope it helped,

Help plz..And No links!! I repeat No links!! If you don’t know the answer don’t saying anything this is important

Answers

Answer:

169.646003294, hope this helps

Step-by-step explanation:

To solve this equation,

A= [tex]2\pi rh+2\pi r^{2}[/tex]

Since the radius is 3 meters. We know what r is. A radius of a circle or sphere is any of the line segments from its center to the perimeter. The height is 6 meters.

[tex]A=2\pi (3)*6+2\pi (3^2)\\ A=2\pi (18)+2\pi 9\\ A=113.097...+2\pi 9\\ A=113.097+56.548...\\ A=169.64600...[/tex]

Sorry, I don't feel like writing all the numbers in and also it would cut out later on.

Sam is using the expression m/8n in class. what is the value of the expression when m = 4 and n = 1/2?

Answers

Answer:

1

Step-by-step explanation:

m/8n > 4/8(1/2) ( since its 1/2 all u need to do is change the fraction to whole number which is 1/2 = 0.5)

The given will become 4/4 then simplest form is 1

NO LINKS Please and thank you

Answers

Why not well let’s be real

If the principal is $4,500 and the rate of interest is 8%, what is the amount of interest after one year? Formula is I =PRT

Answers

Step-by-step explanation:

I=?

P= $4500

R=8%=0.08

T=1 year

8%*0.01= 0.08

I=(4500)(0.08)(1)

(4500)(0.08)=360

360*1=360

The interest after one year is $360

$3840 with a discount of 10%​

Answers

Answer: 384

Step-by-step explanation: 10% also equals 0.1 so, 3840*0.1 = 384.

Answer:

$3840

Step-by-step explanation:

10%= x/10 and the x is equal to 3840. 3840/10=384 now that I know what %10 of 3840 I can take off the discount price onto the original price,                 3840-384=3456. So 3456 is the final price after including the 10% discount.

Two cars leave the same parking lot, with one heading north and the other heading east. After several minutes, the northbound car has traveled 4 kilometers, and the eastbound car has traveled 3 kilometers. Measured in a straight line, how far apart are the two cars?

Answers

Answer:

The distance between them is 5km

Step-by-step explanation:

Given

[tex]Car\ A =4km[/tex]

[tex]Car\ B =3km[/tex]

Required

Distance between them

The scenario can be represented with the attached image

The distance between them is then calculated using Pythagoras theorem

[tex]d^2 = 4^2 +3^2[/tex]

[tex]d^2 = 16 +9[/tex]

[tex]d^2 = 25[/tex]

Take square roots of both sides

[tex]d = \sqrt{25[/tex]

[tex]d = 5[/tex]

help me with this please

Answers

Step-by-step explanation:

y = -4x + 17

=> (4,1)

x=4 --> y = -4(4)+17=-16+17=1

(4,1) matched

=> (2,9)

x=2 --> y=-4(2)+17=-8+17=9

(2,9) matched

Step-by-step explanation

A(4,1)
B(2,9)

m= Y2-y1/x2-X1
= 9-1/2-4 = 8/-2=-4

y=mx+b m=decline

Y=-4x+b —> replacing by point A(4,1)
1=-4x4+b
1=-16+b
b=17

Y=-4x+17 ✔️

help please

For each question order the cards from least to greatest. If the feature is equal to two or more functions, place them next to each other. y-­coordinate of the y-­intercept
(the letters/cards need to be put in order form least to greatest based on y-­coordinate of the y-­intercept)

Answers

Answer:

C, D (-4) ⇒ E, G (0) ⇒ H (1) ⇒ A, F (3) ⇒ B(8)

Step-by-step explanation:

The y-intercept is the coordinate of y at x = 0.

Let's find them all and then order.

A)

a(0) = -2*0 + 3 = 3

B)

b(0) = 8 as per graph

C)

c(0) = - 4 as per graph

D)

d(0) = 0² - 4 = - 4

E)

The point to be found after the equation of the function e(x)

We can see it is a linear function as the rate of change is constant

Use two points from the table (-1, 2) and (1, -2), find the slope:

m = (-2 - 2)/(1 - (-1)) = -4/2 = -2

Use one point to find the y-intercept:

y - 2 = -2(x - (-1))y - 2 = -2x - 2y = -2x e(x) = -2xe(0) = 0

F)

f(0) = 3 as per graph

G)

g(0) = 2(3⁰) - 2 = 2 - 2 = 0

H)

h(0) = 1 as per table

22. The first 5 terms of a number pattern are shown below.
4, 9, 14, 19, 24,
Which expression is equivalent to the value of the nth term in the pattern?
5n -1
57
n +5
5n +3

Answers

a) 5n- 1
the patterns going up in 5s and to get back to 4 you need to - 1

The expression is equivalent to the value of the nth term in the pattern is aₙ = 5n - 1. Then the correct option is A.

What is an arithmetic sequence?

Let a₁ be the first term and d be a common difference. Then the nth term of the arithmetic sequence is given as,

aₙ = a₁ + (n - 1)d

The first 5 terms of a number pattern are shown below.

4, 9, 14, 19, 24

The first term of the sequence is 4 and the common difference between the terms is given as,

d = 9 - 4

d = 5

The expression is equivalent to the value of the nth term in the pattern and will be

aₙ = 4 + (n - 1) x 5

aₙ = 4 + 5n - 5

aₙ = 5n - 1

The expression is equivalent to the value of the nth term in the pattern is aₙ = 5n - 1. Then the correct option is A.

More about the arithmetic sequence link is given below.

https://brainly.com/question/12373434

#SPJ5

Please help. Find the two missing sides and write your answer as in simplified radical form.

Answers

Answer:

x and y =   5√2.

Step-by-step explanation:

This is a 45:45:90 triangle so length of x = length of y.

In this triangle the ratio of the sides is 1:1:√2

Finding length of x and y:

1/√2 = x/10

√2x = 10

x = 10/√2

=  10√2/2

=  5√2.

Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the top 2% of those who took the test. This means that they scored better than 98% of the other test takers. Marcus received his score of 13.7 on the exam and is wondering why he didn’t receive a certificate. Show all work to determine whether Marcus’ score was high enough to earn a certificate. Write a letter to Marcus explaining whether or not he will be receiving a certificate. Include a brief summary of your statistical analysis in your letter.

Answers

Answer:

Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.

Step-by-step explanation:

Find the value of 8 x n when n=9.

Answers

Answer:

72

Step-by-step explanation:

8×n

8×9

=72

just substitute 9 were n is the multiple

to check

8n=72 (divide by 8 both sides)

n=9

What is the value of x in the figure?
A. 120°
B. 140°
C. 150°
D. 160°

Answers

The answer is A. 120

what is the variable if 13 and p

Answers

Answer:

p because variables are shown by letters not numbers

Hope this helped:)

Step-by-step explanation:

How many solutions does the system have ?

Answers

Answer:

Infinite

Step-by-step explanation:

[tex]4x + 2y = 8 =>2x + y = 4[/tex]

[tex]2x + y = 4\ is\ equal\ to\ 2x + y = 4[/tex]

Which description best represents the inequality:
8x < x + 6?

Answers

Answer:

x < 6/7

Step-by-step explanation:

Your question doesn't say what your choices are, so I'm assuming the inequality should be solved for x... which values of  x  make 8x < x + 6?

Subtract  x  from both sides, then divide by 7.

7x < 6

x < 6/7

please help and show work

Answers

9514 1404 393

Answer:

  5. x° = 38°; b° = 90°

  6. m∠TSU = 110°

Step-by-step explanation:

The relationship relevant to these problems is that an inscribed angle is half the measure of the arc it intercepts. That is also true of the angle formed by a chord and a tangent.

__

5. Angle x° intercepts an arc marked 76°, so is half its measure: 76°/2 = 38°

  x° = 38°

Arc b° is intercepted by an inscribed angle of 45°, so is twice that measure.

  b° = 90°

__

6. Long arc SU is the remaining portion of the circle after short arc SVU is subtracted:

  long arc SU = 360° -140° = 220°

Angle TSU is half that measure: 220°/2 = 110°.

  m∠TSU = 110°

Find the volume of the figure. Use 3.14 for Pi​

Answers

Answer:

The answer would be 17

Step-by-step explanation:

The answer would be 17 because if you add 12 plus 5 That would be your answer

SOMEONE PLEASE EXPLAIN THIS TO ME. IVE GOTTEN THIS WRONT 3 TIMES AND I DONT KNOW WHAT IM DOING WRONG

Answers

Answer:

I believe the answer is 58.1 degrees

Step-by-step explanation:

acrsin 45/53=58.1

45/53 is the sin of P

At the calendar shop, wall calendars cost $10 and desk calendars cost $6. Kira spent $60 to buy 8 calendars. How many of each type of calendar did Kira buy?

Answers

Answer: 3 desk calender's and 3 wall calendars

Step-by-step explanation: 6 x 5 = 30 and 3 x 10 = 30

30 + 30 = 60

HELP PLEASE! I NEEDED IT! T0T

Applying the 45-45-90 Theorem, Find the lengths of the other two sides of a right triangle if the length of the hypotenuse is 4√2 inches and one of the angles is 45°.​

Answers

Answer: The other two sides are 4 inches each

Rule: If x is the leg of a 45-45-90 triangle, then x*sqrt(2) is the hypotenuse.

We can prove this by showing that x^2+x^2 = (x*sqrt(2))^2 is an identity. It's from the pythagorean theorem a^2+b^2 = c^2.

Put another way, if we know that a = x and b = x are the two congruent legs, then x^2+x^2 = c^2 leads to c = x*sqrt(2). This triangle is known as an isosceles right triangle.

So if 4*sqrt(2) is the hypotenuse, we match that up with the template x*sqrt(2) and see that x = 4 must be the case.

Rachel has 132 baseball card his brother has 5/6 as many baseball card how many baseball card does his brother have

Answers

Answer:

110

Step-by-step explanation:

5/6 of 132 is 110

classifying triangles
what type of triangle is shown?​

Answers

The answer is c: Scalene

Answer:

Scalene since there are no same angles nor lengths

Step-by-step explanation:

Can anyone help me with this problem please but write down the steps please “factor each polynomial”

Answers

Answer:

Step-by-step explanation:

18x^2-21x-60

=18x^2-(45-24)x-60

=18x^2-45x+24x-60

=3x(6x-15)+4(6x-15)

=(3x+4)(6x-15)

Find the measures of ZX and ZY.
Z
Х
P
1649
V
102°
w
o
mZX=
o
mZY=

Answers

Answer: 303

Step-by-step explanation:

Other Questions
1. The set containing no element in it is called Write a paragraph in Spanish about the types of entertainment you prefer, live and recorded, and why. Use the subjunctive mood in your response, where possible four less than the sum of a number, x and nine is 35 can someone please help me lolthank u! what is the range of 0 and 8 Find the value of y ? thank youuuuu The cumulative frequency table shows the heights (inches) of every student in Mrs. Torjmans math class. What number should be written in the red box? What kind of reaction is this ? P+02-P4010A.SynthesisB. DecompositionC.Single ReplacementD. Double Replacement Read the paragraph.As Ms. Cheng waited at the stop for her bus to arrive, a man who was carrying ashopping bag full of groceries walked by. Just as the bus came, the man's bag rippedand the groceries spilled to the ground. Ms. Cheng didn't want to abandon someonewho needed help, so she helped him pick them up while the bus came and went. Theman thanked Ms. Cheng, and together they waited for the next bus to arrive.What is a SYNONYM for the word abandon?botheraccusedesertpunish What the answer there are no options Which of the following would starve Texas of Trade?Blockade/EmbargoTreaty with RussiaA Non Aggression Pact with Mexico I need the answer fast pls g In the mid-1800s, overhunting of Northern Elephant Seals reduced their population size to fewer than 40 individuals. However, the population has since rebounded to over 100,000 animals. The population went through a _________, which makes it more susceptible to ___________. Which ones of the following lights are present in both sunlight and a growbulbRadio wavesGamma wavesO Visible LightO InfraredO Ultraviolet how can we prevent from corona virus?write its treatment. in the circular flow model which part of the economy provides products to households Joey lifts a heavy backpack off the ground. As he lifts the backpack, he keeps his legs straight, and uses his biceps and back muscles to lift. In your analysis of Joey's form you conclude he needs to use his...A. Arms and muscles to keep his head upB. Back muscles and keep his feet togetherC. Chest muscles and bend more at the hipsD. Leg muscles to keep his back straight Solve each problem and show the work for each one. Solve by factoring.1. 2x^2+9x+26=-4x+5 Solve by using the quadratic formula and round to the nearest hundredth.2. 3x^2-6x-4=0 How did the United States seek to stop the spread of communism during the Cold War?by establishing satellite states around the USSRby promoting capitalism in countries near the USSRby ignoring countries that adopted communismby helping countries create democratic governments The following true stresses produce the corresponding true plastic strains for a brass alloy: True Stress (psi) True Strain 48400 0.11 60400 0.19 What true stress is necessary to produce a true plastic strain of 0.26