pleaseeeee helpppppppppppppp

Pleaseeeee Helpppppppppppppp

Answers

Answer 1

A math class has 3 girls and 7 boys in the seventh grade and 3 girls and 3 boys in the eight grade. The teacher randomly selects a seventh grader and an eight grader from her class for a competition. What is the probability that the students she selects are both boys?

Answer: 3/5


Related Questions

write a linear equation that passes through the point (-3,3) and (9,-13)

Answers

Answer:

y=-4/3x-1

Step-by-step explanation:

[tex] \frac{ {y}^{2} - {y}^{1} }{ {x}^{2 -{x}^{1} } } [/tex]

[tex] \frac{ - 13 - 3}{9 - - 3} = \frac{ - 16}{12\ }[/tex]

y=mx+b like this:

y=-4/3x+b

To find b:

y=-4/3x+b. 

You can use either (x,y) point you want..the answer will be the same

(-3,3). y=mx+b or 3=-4/3 × -3+b, or solving for b: b=3-(-4/3)(-3). b=-1.

(9,-13). y=mx+b or -13=-4/3 × 9+b, or solving for b: b=-13-(-4/3)(9). b=-1.

A rock has a mass of 126 grams and a density
of 1.8 grams/cm.
Work out the volume of the rock.


Answers

Answer: 70 grams^3

Step-by-step explanation: volume = mass/density                                             volume = 126/1.8                                                                                                       volume = 70 grams^3

The value of the volume of the rock will be;

⇒ Volume = 70 cm³

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The mass of rock = 126 grams

The density of rock = 1.8 grams/cm

Now,

Since, We know that;

⇒ Volume = Mass / Density

Here, The mass of rock = 126 grams

The density of rock = 1.8 grams/cm³

Substitute all the values we get;

⇒ Volume = Mass / Density

⇒ Volume = 126 / 1.8

⇒ Volume = 70 cm³

Thus, The value of the volume of the rock will be;

⇒ Volume = 70 cm³

Learn more about the divide visit:

https://brainly.com/question/315081

#SPJ2

16.093 x 10 to the third power





HELP ME PLEASE GOD

Answers

Answer:

16093

Step-by-step explanation:

I hope this helps!

Answer:

Your answer is 6,960,212.797357.

End of Answer

Step-by-step explanation:

(19.093 * 10)^3 OR

19.093 * 10 = 190.93

190.93^3 = 6,960,212.797357

End of Step-by-step explanation

Edit: I'm probably wrong this is the actual answer: 16093

A building is being constructed. When completed, it will be 596 meters tall. It currently stands at 77% of this height.

Answers

Answer:

458.92

Step-by-step explanation:

77%×596=458.92

Rahul earns 21,000 in 7 months.

a) How much does he earn in 12 months!

b) In how many months will he earn *33,000?​

Answers

Answer:

a _ 12×21000/7 = 36000

b _ 33 × 7 / 21000= 11 months

Ruben bought 666 comic books for \$21$21dollar sign, 21. Each comic book was the same price.
What was the cost for 111 comic book?
\$

Answers

Answer:

$3.50

Step-by-step explanation:

111 is a sixth of 666 so its 21/6 which is 3 dollars 50 cents.

8b–9b–5b+7b
Simplify the expression:

Answers

Answer:

b, or 1b

Step-by-step explanation:

First of all, you have to combine like terms. In this situation though, they are all b. So start at the beginning. 8-9 is -1. -1 - 5 is -6. -6+7 is 1. So you say, b, because it is the same thing as 1 b.

PLEASE HELP ME OUT!

25 cm = ______ mm

15 g = ______ mg

Answers

Answer:

25cm = 250mm

15g = 1500mg

Step-by-step explanation:

cm to mm = multiply by 10

therefore 25 x 10 = 250

g to mg = multiply by 1000

therefore 15 x 1000 = 15000

anyone please help me for brainly

Answers

Answer:

A.) [tex]f(x)=25x+40[/tex]

Step-by-step explanation:

Answer:

[tex]f(x)=25x+40[/tex]

Step-by-step explanation:

Hope this helps

If 8 km = 5 miles, convert 350 miles into km.

Answers

Answer:

560 is your answer... I hope it helps

Uhm what the person said ^^

what is the circumference of a circle with diameter 14-inches long

Answers

Answer:

the circumstance is 43.98

Model a desert community where 19% of the area is
desert and the rest is houses.
squares represent the area of the community
that is desert.
The area of the community that is houses is
represented by squares.

Answers

Answer: the first one is 19 and the second is 81.

A rental car agency charges $220.00 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $380.00?

Answers

40 miles per week

Step-by-step explanation:

380-220 = 160÷4 = 40

You can travel 320 miles in one week for $320 miles.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

A rental car agency charges $220.00 per week plus $0.25 per mile to rent a car.

If the amount is $380.

Then, 380 - 220 = 160

And 160 divided by 0.5,

= 160/0.5

= 320 miles.

Therefore, the required distance is 320 miles.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ2

What is the answer to 3) 1 + 4x = −5 + 7x

Answers

Answer:

x = 2

Step-by-step explanation:

X=2 because

You subtract the one and carry it over to negative five which makes it negative 6 and it should be

4x = -6+ 7x

Subtract the 7x and carry it over to the 4x

And you should have

-3x=-6

And you divide by the negative 3 and since dividing a negative and negative gets a positive you should get this as your answer

X=2

which product is greater (-4) x (-6) or (-7) x (-8) explain how

Answers

Answer:

(-7) × (-8)

Step-by-step explanation:

(-4) × (-6) = 24

(-6) × (-7) = 42

What is product in math.

Answers

Answer:

so when you Mutpliy #*#  = #product

Step-by-step explanation:

EX: 3*4=12

[tex]\bold{ \sqrt{12} \times \sqrt{12} }=[/tex]

Answers

The answer will be 12
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers
12.
Hope this helped >_

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The equivalent value is ~

[tex] \boxed{12}[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

Let's solve ~

[tex] \sqrt{12} \times \sqrt{12} [/tex]

[tex] \sqrt{2 \times 2 \times 3} \times \sqrt{2 \times 2 \times 3} [/tex]

[tex] \sqrt{2 \times 2 \times 3 \times 2 \times 2 \times 3} [/tex]

[tex]2 \times 2 \times 3[/tex]

[tex]12[/tex]

A city has a population of 38,802,500 people. Esitmate this population to the nearest ten million

Answers

Answer:

40,000,000

Step-by-step explanation:

hope this works

( No Copy answer Use)

:)

The sum of two numbers is x . If one of the numbers is 12, what is the other?

Answers

Answer:

x - 12

Step-by-step explanation:

Given

12 + ? = x ( subtract 12 from both sides )

? = x - 12

The other number is x - 12

Find the perimeter. Simplify your answer.

Answers

we have: [tex]P=(7c-5) +(10c-2) + (7c-5) = 7c-5+10c-2 + 7c-5=24c-12[/tex]

ok done. Thank to me :>

Joseph is pouring concrete for his new patio. The area of the patio is 25.2 square feet
and the length is 7.2 feet. What is the width, w, of his patio?

Answers

Answer:

3.5ft

Step-by-step explanation:

A = L(W)

25.2 = 7.2(W)

3.5 = W

A size 8 kids shoe measures 9 2/3 inches. if 5 size 8 shoes are lined end to end, then bow many inches will they cover?

Answers

Answer:

48 1/3 inches

Step-by-step explanation:

Each size 8 shoe measures 9 2/3 inches. If we line 5 of them together, the length of the entire thing will be 5 times the size of each shoe, 9 2/3 in. To write 5 as a fraction, put it over a denominator of 1. Then rewrite 9 2/3 as an improper fraction. Now you can multiply across and simplify as needed.

Answer:

the person below is correct

Step-by-step explanation:

hope this helps have a good rest of ur night :)❤

The sides forming the right angles and hypotenuse of a right angled triangle are x cm, (2x + 2) cm and (3x – 2) cm respectively. Calculate the perimeter of the triangle.

Answers

Answer:

6x

Step-by-step explanation:

Perimeter is the sum of all the sides:

(x) + (2x + 2) + (3x - 2)

Add like-terms:

6x + 2 - 2 = 6x

Perimeter = 6x

The formula for the area of a triangle is A=1/2bh, where b is the base of the triangle and h is the height of the triangle. The area of the triangular sail of a sailboat is 126ft^2. The base is 12 ft. Find the height of the sail.

(Show steps please)

Answers

Answer:

H=21ft

Step-by-step explanation:

Height=2•Area/Base

Area=126ft^2

Base=12ft.

H=2•126/12=21ft

H=21ft

Hope this helps :)

I need help quickly

Answers

the answer is 6 (x- 5)= 36

please help 7th grade math

Answers

Answer: 3.9

Step-by-step explanation: calculator

1. 39 divided by 4 divided by 2.50

Amy thinks that 2/5 in its simplest form is 1/2.5
Do you agree? Convince me​

Answers

Answer:

no

Step-by-step explanation:

2/5 is the simplest form in this question 1/2.5 would not mathematically go into 2/5

pls help!!

Dominick buys a package of soup mix that is 1.38 ounces. How many ounces are 6 packages of soup mix?​

Answers

Answer:

8.28

Step-by-step explanation:

this is the answer because

.08*6= .48

.3*6= 1.8

1*6=6

.48+1.8 = 2.28

6+2.28=8.28

? Steve has 7 biscuits in a tin. There are 3 digestive and 4 chocolate biscuits. Steve takes two biscuits at random from the tin. Work out the probability that he chooses two different types of biscuits.​

Answers

Using the hypergeometric distribution, it is found that there is a 0.5714 = 57.14% probability that he chooses two different types of biscuits.​

What is the hypergeometric distribution formula?

The formula is:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

x is the number of successes.N is the size of the population.n is the size of the sample.k is the total number of desired outcomes.

In this problem, the values of the parameters are given as follows:

N = 7, k = 3, n = 2.

The probability that he chooses two different types of biscuits is P(X = 1), hence:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 1) = h(1,7,2,3) = \frac{C_{3,1}C_{4,1}}{C_{7,2}} = 0.5714[/tex]

More can be learned about the hypergeometric distribution at https://brainly.com/question/24826394

#SPJ1

Need help answering this question, and 4 others that are on my page. Giving Points and Brainiest.

Answers

h(x) = -4

Step-by-step explanation:

Simple. Plugging this into the equation will give us:

h(x) = -14 -(-40)/4 = -14+10

h(x)= -4

Other Questions
How many times does 9 go into 695 with partial quotient divison WILL GIVE BRAINLIEST (5x-7)(10x-32)14 the perimeter of the pictured triangle is _____ in. A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained the wishes the estimate to be within three percentage pointswith 90% confidence, assuming that(a) he uses the estimates of 21.3% male and 19.5% female from a previous year?(b) he does not use any prior estimates?(a)n (Round up to the nearest whole number)(b) (Round up to the nearest whole number.) Nobody knew where they were Which areas of the world do wind direction patterns originate? Paul is the neighborhood Peeping Tom.At night he goes into Mary's backyard and peers through her bedroom window as she changes clothes.While Paul gains sexual gratification in watching Mary change clothes,he is also violating the ________ statute. Why was the Coliseum repaired after the fire but not after the earthquake? Write (-3,-9) and (4,-2) in slope intercept form When reading your essay out loud, your primary purpose should be to make sure that each sentence _____. HELP PLEASEAcellusSolve this system of equations byusing the elimination method. Which of the following was the least cause for the split between Jeffersonians and Hamiltonians?A. the Bank of the United StatesB. the French RevolutionC. taxationD. the Franco-American Alliance of 1778E. the Jay Treaty ed says a decimal grid shows 10 tenths monica says a decimal grid shows 100 hundredths who is correct explain PLEASE HELP I NEED TBIS DONE IN 30 minutes how long do fresh cranberries last in the refrigerator? what two political parties were running in the election of 1800? When a new business starts up, it helps create ________________.problemsneedswealthwants What is m + 5n where m = 1 and n = 5? CHOOSE THE RIGHT ANSWER:A. 26B. 52C. 25D. 62HELP! (T^T) Find two integers whose sum is -12 and product is 35 Paul received a bonus of $750, which was 5% of his annual salary. His annual salary is a. A$37,500 b. $25,000 c. $22,500 d. $15,000 e. $7,500 Lyra is designing a model of a solar system with a planet and a comet. The planet has a circular orbit, centered at the origin with a diameter of 100. The comet follows a parabolic path with directrix x = 70 and vertex at (60, 0). Part A: Write the equation of the planet's orbit in standard form. Show your work. (2 points) Part B: Write the equation of the comet's path in standard form. Show your work. (4 points) Part C: Identify all points where the planet's orbit intersects the path of the comet. Show your work and round answers to the hundredth place. (4 points) pls I need a step by step on how to solve 2+4=62