GUYS MY THIRD TIME ASKING FAST PLEASE HELP MEEE: At a certain high school, 35 students play only stringed instruments, 10 students play only brass instruments, and 5 students play both. There are also 5 students who play neither stringed nor brass instruments. what is the probability that a randomly selected student plays either a string or brass instrument?
P(AUB)={?}

Answers

Answer 1
35s
10a
5b
5n
There are 55 students
There are 50/55 that play a string or brass that’s 10/11 or about 90%
Answer 2

Answer:

35=10+5+5

35=20+p

35-20=p

p=15


Related Questions

Please help me ASAP tysm

Answers

Answer:

?

Step-by-step explanation:

what is the value of x to the nearest tenth

Answers

Answer:

x ≈ 24.7

Step-by-step explanation:

Using the Sine rule in the triangle , that is

[tex]\frac{x}{sin71}[/tex] = [tex]\frac{15}{sin35}[/tex] ( cross- multiply )

x × sin35° = 15 × sin71° ( divide both sides by sin35° )

x = [tex]\frac{15sin71}{sin35}[/tex] ≈ 24.7 ( to the nearest tenth )

Two roots of a third degree polynomial function f(x) are –4 and 4. Which statement describes the number and nature of all roots for this function?
f(x) has three imaginary roots.
f(x) has three real roots.
f(x) has two real roots and two imaginary roots.
f(x) has three real roots and one imaginary root.

Answers

Answer:

Step-by-step explanation:

A third degree polynomial has a total of three roots, real and imaginary combined.

If it already has 2 real roots, -4 and +4, then it has to have three real roots because imaginary roots come in conjugate pairs, i.e. they come in even numbers.

Answer:

Three real roots

Step-by-step explanation:

Mikey Johnson shipped out 41 1/4 pounds of electrical supplies. The supplies are placed in individual packets that weigh 2 3/4 pounds each . How many packets did he ship out?

Answers

Answer:

15

Step-by-step explanation:

Number of packets shipped out = total weight of electrical supplies / weight of  individual packets

[tex]41\frac{1}{4}[/tex] ÷[tex]2\frac{3}{4}[/tex]

to solve convert the mixed fractions to an improper fraction

to convert to improper fraction, take the following steps :  

1. Multiply the whole number  by the denominator

2. Add the numerator to the answer gotten in the previous step

3. divide the number gotten in the previous step by the denominator  

[tex]\frac{165}{4}[/tex] ÷ [tex]\frac{11}{4}[/tex]

[tex]\frac{165}{4}[/tex] × [tex]\frac{4}{11}[/tex] = 15

Fill in the blank: 12(8x - 4) = __X - 48

Answers

Answer:

96x

Step-by-step explanation:

12(8x - 4)

=12*8x - 12*4

=96x - 48

Answer:

96

Step-by-step explanation:

You distribute the 12 to each term, the 8x term turns into 96x after distribution.

I need to find the area

Answers

15x12= 180
180/2=90
The area is 90

Answer:

90 cm^2

Step-by-step explanation:

The area of a triangle is half of the base times height, so it is 1/2*15*12 = 7.5*12 = 90

Peter wallpapered a wall that was 9 feet wide and 8 feet high. He had 27 square feet of wallpaper left over. How many square feet of wallpaper did he start with?

Answers

Answer:

99 square feet

Step-by-step explanation:

Because 8 times 9=72+27=99

99 square feet

Explanation:
1.) Find the area of the wall:
8 feet x 9 feet = 72 square feet

2.) To find out how many square feet of wallpaper he had at first, add the area of the wall to the wallpaper he has left:
72 square feet + 27 square feet = 99 ft2

SOMEBODY CORRECT ME IF IM WRONG
And if I am right (pls say if my answer was right after this) Mark me brainliest tysm!

Question 12 (1 point)
The solution to 2x + y = 8 and y = x -7 is (5,-2).
True
False

Answers

Answer:

True

Step-by-step explanation:

Used a graphing calculator to check

Hope this helps

A recipe for a smoothie for 0.75 pound of strawberries. If Kerry has 3.15 pounds of strawberries, how many batches of the recipe can She make

Answers

Answer:

4 batches

Step-by-step explanation:

To obtain the number of batches of the recipe that can be made ;

We take the divison of the total amount of strawberry by the amount of strawberry required per batch :

Pounds of strawberry per recipe = 0.75 pound

Total pounds of strawberry = 3.15 pound

= 3.15 / 0.75

= 4.2

We round down :

4.2 batches = 4 batches of the recipe can be made

you have a baker that is currently at 70°F what would happen if you added water to lower the temperature by 15°​

Answers

Answer:

65

Step-by-step explanation:

easy

What is the volume of this triangular prism? A triangular prism. The triangular base has a base of 28 centimeters and height of 22.4 centimeters. The height of the prism is 18.1 centimeters. 313.6 506.8 5,676.16 11,352.32

Answers

Answer:

The volume of the triangular prism is 5676.16 cm³

Step-by-step explanation:

The area of the triangular base A = bh/2 where b = base = 28 cm and h = height = 22.4 cm.

Now, the volume of the triangular prism, V = area of triangular base, A × height of prism, h'

V = Ah' where h = height of prism = 18.1 cm

So, V = bhh'/2

Substituting the values of the variables into the equation for V, we have

V = bhh'/2

V = 28 cm × 22.4 cm × 18.1 cm/2

V = 14 cm × 22.4 cm × 18.1 cm

V = 5676.16 cm³

So, the volume of the triangular prism is 5676.16 cm³

Answer:

5676.16 cm³

Step-by-step explanation:

Can anyone help me please I really need help.

Answers

Answer:

what do u need help with

Step-by-step explanation:

100 POINTS HELP! THIS IS A PROJECT. NOT IN A RUSH.

Describe how to find the terms mean, median, mode, and range of a group of numbers.

Pretend you are a teacher trying to describe these terms to a student. Make sure you write as if you are the teacher and explain each term as if the student is learning this for the first time. Be descriptive and give examples. Make sure you include the data set (the group of numbers) you will be working with. Be sure to use complete sentences. Be creative!

Answers

Answer

Hello class!

Step-by-step explanation:

1. The mean is the average of a data set.

2. The mode is the most common number in a data set.

3. The median is the middle of the set of numbers.

Of the three, the mean is the only one that requires a formula. I like to think of it in the other dictionary sense of the word (as in, it’s mean as opposed to nice!). That’s because, compared to the other two, it’s not as easy to work with.

Help me to do this question ​

Answers

Answer:

c1) adjacent

c2) not adjacent

c3) adjacent

c4) not adjacent

c5) adjacent

c6) not adjacent

d1) 20°

Complement: 90° - 20° = 80°

Supplement: 180° - 20° = 160°

d2) 77°

Complement: 90° - 77° = 13°

Supplement: 180° - 77° = 103°

d3) 101°

Complement: doesn't have a complement.

Supplement: 180° - 101° = 79°

d4) 90°

Complement: 90° - 90° = 0°

Supplement: 180° - 90° = 90°

d5) 96°

Complement: doesn't have a complement

Supplement: 180° - 96° = 84°

d6) x

Complement: 90° - x

Supplement: 180° - x

d7) y

Complement: 90° - y

Supplement: 180° - y

pleaseee help me with this questionnn

Answers

Answer:

itss8tsz85sz85s,85s,8td,8td,85dz85dzd85e,7554334567

Step-by-step explanation:

otdxd8td 8td 85sx8ts,ts8,8ts,8td,88ts8ts,8ts,8ts,8ts,8ts,8ts,8ts,8ts,8ts,,8ts8ts,8t,s8ts,8tz8txdxtitixtxtidittdxdctiti dttxdididez6z84gfiwz84wz85wzy0dcydcydc6dctr456887654

What is the area of the sail?

Answers

Area = 30 meters ^2

Area of a triangle is found by multiplying both sides and then dividing that answer by 2.

So 6 times 10 is 60, and 60 divided by 2 is 30.

Answer:

I agree other students

Step-by-step explanation:

congrats

ANSWE PLEASEEEEEEEEEEEEEEE

Answers

Answer:

your answer is gonna be A!! <3

Step-by-step explanation:

1 Subtract 33 from both sides.

y-3=-2x

y−3=−2x

2 Divide both sides by -2−2.

-\frac{y-3}{2}=x

2

y−3

=x

3 Switch sides.

x=-\frac{y-3}{2}

x=−

2

y−3

Answer:

A

Step-by-step explanation:

Math Problem Solving
statistics and probability​

Answers

Answer:

Standard Deviation = 3.22

Variance = 10.36

Step-by-step explanation:

x          P(x)           x × P(x)              x²             x² × P(x)

19         0.20           3.8                  361               72.2

10         0.20             2                   100                20

11          0.30           3.3                   121                36.3

12         0.20           2.4                   144               28.8

13          0.10            1.3                   169                16.9

____________________________________________

                            12.8                                         174.2            => Total

Mean Formula

[tex]\mu_x = \sum(x \times P(x))[/tex] [tex]= 12.8[/tex]

[tex]\mu_x^2 = 163.84[/tex]

Variance Formula

[tex]\sigma _x^2 = \sum[x^2 \times P(x)] - \mu_x^2[/tex]      

   [tex]= 174.2- 163.84\\\\=10.36[/tex]

Standard Deviation Formula

[tex]Standard\ deviation, \ \sigma_x = \sqrt{Variance}[/tex]

                                   [tex]=\sqrt{10.36}\\\\=3.218[/tex]      

   

A bag contains 8 red balls and 6 blue
balls.
Radhika takes three balls at random
from the bag, without replacement.
Calculate the probability that the three
balls are the same colour. *

Answers

Answer:

The probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

Step-by-step explanation:

Since a bag contains 8 red balls and 6 blue balls, and Radhika takes three balls at random from the bag, without replacement, to calculate the probability that the three balls are the same color, the following mathematical operations must be performed:

8 + 6 = 14

14 = 100

8 = X

8 x 100/14 = X

800/14 = X

57.14 = X

100 - 57.14 = 42.86

0.5714 ^ 3 = X

0.1865 = X

0.4286 ^ 3 = X

0.0787 = X

Therefore, the probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

Plssssss HELP ME WITH THIS

Answers

Given, f(x)=2x^2-3x and g(x)= -2x+4

f(-3) => x= -3 in f(x)

g(6) => x=6 in g(x)

f(-3)=2(-3)^2 - 3(-3)

=2(9)+9

=27

g(6)= -2(6)+4

= -12+4

= -8

Therefore, f(-3)=27 and g(6)= -8

Find the volume of the shape with the given dimensions 8 in by 5 in by 3 in

Answers

Answer:

V = (8 in)(5 in)(3 in) = 120 in^3

Step-by-step explanation:

The likeliest name for this shape is "rectangular prism."  Let's assume that the length, L, is 8 in; the width, W, is 5 in; and the height, H, is 3 in.

Then the volume of this rectangular prism is V = L * W * H, or

V = (8 in)(5 in)(3 in) = 120 in^3

how do you do this?

Answers

Answer:

by increasing the size ez

what is slop of the line that passes through the ponitss (5, -4) and (7, -4)

Answers

Answer:

The slope is 0

Step-by-step explanation:

Points on the graph:

(5, -4) and (7, -4)

Slope:

m=(y2 - y1)/(x2 - x1)

m=(-4 + 4)/(7 - 5)

m= 0/2

m=0

In stage 2 of a rocket's takeoff, the speed of the rocket increases at a rate of 4.3% per minute. The speed of the rocket at the beginning of stage 2 was 5,000 kilometers per hour. Its speed at the end of Stage 2 will be 25,000 kilometers per hour.

If t is the time, in minutes, from the beginning of stage 2, which equation could be used to determine how long it will take for the speed of the rocket to reach 25,000 kilometers per hour, assuming it increases at the same rate for all of stage 2?

A.
5,000 = 25,000(0.043)t
B.
5,000 = 25,000(0.957)t
C.
25,000 = 5,000(1.043)t
D.
25,000 = 5,000(1.43)t

Answers

A 5,000 = 25,000(0.043)t

The value of a piece of property is growing at a rate of 3.5% annually if the property was worth $77,000 when it was purchased, which equation could be used to determine the value of the property, y, x years after it was purchased?

A. y=77,000+3.5x
B. y=77,000(3.5)x
C. y=77,000(1.035)x
D. y=77,000(0.035)x

Answers

The answer is .C (1.035)x

How many quarters does Annie have


A.35

B.49

C.3

D.7

Answers

Answer: Annie has 49 Quarters

Explanation:
Sarah has 21 more quarters than Annie.
As shown, It says That Sarah has 28 quarters.
So, if Sarah has 21 more, it means you add 21 + 28
Resulting in 49.

Hope this helps you! If available please give me a Branliest. It is much appreciated!

- Mathhotdog •~•

Answer:

n = 7

Step-by-step explanation:

sarah = m

annie = n

sarah has 21 more than annie

m = 21+n

given sarah has 28 quareters

m = 21 + n

28 = 21 + n

28 - 21 = n

7 = n

annie has 7 quarters.

Shape ABC has the following coordinate
A (3,9) B (27,-15) C (-12,-6)
The Image A'B'C' of a dilation has the coordinate
A' (1,3) B' (9,-5) C' (-4,-2)
What is the Scale Factor of the Dilation

Answers

1/3- just remember dilation always has a scale factor than is either multiplied or divided. Here you see the x coordinate in A go from 3 to 1 in A’ so the scale factor is 1/3

altogether i have 10 bags of sweets. the mean number of sweets in the bag is 40

Answers

Answer the question : I don't get what the question is suppose to be

Step-by-step explanation:

ZA — 5х – 12°
ZB = 2х + 24°
B
4

Answers

Answer:

Step-by-step explanation:

angle A =angle B (because they are alternate interior angles)

5x-12=2x+24

5x-2x=24+12

3x=36

x=36/3

x=12

angle A=5x-12

5*12-12

60-12

48

angle B=2x+24

2*12+24

24+24

48

CE and FI are parallel. Giving reasons prove that DGH is isosceles

Answers

9514 1404 393

Answer:

  ∠GDH = ∠GHD = 50°

Step-by-step explanation:

Angles FGD and EDG are alternate interior angles, so are congruent. That means angle EDG is 100°. The angle sum theorem tells us ...

  ∠EDG = ∠EDH +∠HDG

  100° = 50° +∠HDG

  50° = ∠HDG

You can find the measure of ∠DHG a couple of different ways. It is an alternate interior angle congruent to ∠EDH, so is 50°. It is one of two remote interior angles that have  a sum equal to the exterior angle FGD, so is ...

  ∠DHG = ∠FGD -∠HDG = 100° -50° = 50°

So, angles DHG and HGD both have measures of 50°. When a triangle has two angles with the same measure, it is an isosceles triangle.

Other Questions
Which statement best describes the function of the human body system What is cognitive bias? Please help me !!!! in the diagram below, ABCD is a rectangle. Find the gradient of the line y= -4x + 5 Can someone help me with this question please.. What important points do you need to remember about combustion? A window is constructed with the top half of an ellipse on top of a square. The square portion of the window has a 40 inch base. If the window is 54 inches tall at its highest point, find the height, h, of the window 10 inches from the center of the base.Decorative image What is an example of an interest leading to a career choice Rons class donated d dollars to a local charity. Dannys class donated 21% more than Rons class. Which expression shows the amount Dannys class donated in terms of the amount donated by Rons class?A. 1.21dB. 0.79dC. d + 0.79dD. d + 0.21 Use trigonometry to solve the triangle shown. Round all side lengths to one decimal place andall angle measures to the nearest whole degree. During the invasion , people remained calm. The synonym of invasion is?Aunity Bfire Cattack Dblast Find the solution set of the inequality\qquad8x - 8 \leq -72.8x872. Carla deposited $8500 into an account paying 7.9% annual interest compounded monthly. How muchmoney will be in the account after 6 years? (also called Future value).Round to the nearest cent if necessary. What is a Digital Worker? Do plants and animals use cellular respiration to generate energy?A. YesB. No circuference and area of a circle PLEASE HELP In the graph above, what's the distance between (0, 2) and (5, 2)? Question 16 options: A) 2 units B) 5 units C) 5 units D) 4 units the sum of two numbers is 47 and the difference is 7. what are the numbers? Saul had been studying hard for an exam in his anatomy class. He finally took the exam andknows he did great.How could Saul reward himself?A -He could get to studying immediately for the next test, so that he can do even better.B He could make time to meet up with his friends for lunchC- Now that he knows he has done well on the Exam, Saul could simply take it easy and study only on the day before theexcam0 0He could pay it forward" by tutoring his classmates.