1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
crimeas [40]
4 years ago
8

Please help!! It’s a very simple question..

Mathematics
2 answers:
Svetradugi [14.3K]4 years ago
4 0

Answer: The answer is -4

Step-by-step explanation:−40=12x+8

Step 1: Flip the equation.

12x+8=−40

Step 2: Subtract 8 from both sides.

12x+8−8=−40−8

12x=−48

Step 3: Divide both sides by 12.

12x

12

=

−48

12

x=−4

Answer:

x=−4

Aleks04 [339]4 years ago
3 0
X= -4. I hope this helps
You might be interested in
Make 'a' the subject of the formula: v² - u² = 2as
iren2701 [21]
<span>a= v^2/ 2s - u^2/ 2s  set this up exactly like a fraction </span>
5 0
4 years ago
4-member curling team is randomly chosen from 6 grade 11 students and 8 grade 12 students. What is the probability that the team
Ivanshal [37]

Answer:

0.5944 = 59.44% probability that the team has at least 2 grade 11 students

Step-by-step explanation:

The students are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

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.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

We have that:

6 + 8 = 14 students, which means that N = 14

6 grade 11 students means that k = 6

Teams of 4 members means that n = 4

What is the probability that the team has at least 2 grade 11 students?

This is:

P(X \geq 2) = 1 - P(X < 2)

In which

P(X < 2) = P(X = 0) + P(X = 1)

So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,14,4,6) = \frac{C_{6,0}*C_{8,4}}{C_{14,4}} = 0.0699

P(X = 1) = h(1,14,4,6) = \frac{C_{6,1}*C_{8,3}}{C_{14,4}} = 0.3357

Then

P(X < 2) = P(X = 0) + P(X = 1) = 0.0699 + 0.3357 = 0.4056

P(X \geq 2) = 1 - P(X < 2) = 1 - 0.4056 = 0.5944

0.5944 = 59.44% probability that the team has at least 2 grade 11 students

5 0
3 years ago
The range of y = Arcsin x
taurus [48]

Answer:

This variant of a sine function, reduced to an interval where it is monotonous and fills an entire range, has an inverse function called y=arcsin(x) . It has range [−π2,π2] and domain from −1 to 1 .

Step-by-step explanation:

hope that answers ur question :)

8 0
3 years ago
You are making a scale drawing with a scale of 2 in. = 17 ft. Explain how you find the length of the drawing of an object that h
makkiz [27]

Answer:

Step-by-step explanation:

If 2in represented 17ft

Then 51ft will give (51×2)/17 in

= 6in

4 0
3 years ago
3. Which sample size would give the
Alex17521 [72]
I think it would be 45 or 30
3 0
3 years ago
Other questions:
  • Write as a product of linear factors:<br><br> f(x) = x^5 - 6x^4 - x^3 + 32x^2 - 6x -20
    5·1 answer
  • Math help plz #6 ! Giving brainlist
    6·1 answer
  • We made 63 snowflakes to decorate the room we put 38 snowflakes on the windows in hen we decided to put 25 on the door how many
    7·1 answer
  • What is the complete factorization of the polynomial below?
    15·1 answer
  • A ballet company uses all 22 of its principal dancers, plus 1/2 of its apprentice company in a large production. There are a tot
    11·2 answers
  • Which statements about Sofia’s work are true? Select all that apply.
    5·1 answer
  • Will give brainly and 50 points! Please be original and do it in less then 10 minutes please and ty!
    8·1 answer
  • Isosceles trapezoid ABCD is shown below with a line EF drawn through its center. If the isosceles trapezoid is dilated using a s
    10·1 answer
  • BRAINLIEST ! Find the equation of the line.
    7·1 answer
  • Can people post stuff that are 6th grade cuz I'm in 6th grade
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!