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
Helen [10]
3 years ago
11

2/3(3x+9)=−2(2x+6) I don't know how to do the fraction???

Mathematics
1 answer:
zloy xaker [14]3 years ago
6 0
I hope this helps (pt. 1)

You might be interested in
Find the 52nd term of the given arithmetic sequence-30, -38, -46, -54...
torisob [31]

The sequence is given to be:

-30,-38,-46,-54...

The nth term of an arithmetic sequence is calculated using the formula:

a_n=a_1+(n-1)d

where a₁ is the first term, n is the number of terms, and d is the common difference.

From the given sequence, the following parameters can be gotten:

\begin{gathered} a_1=-30 \\ d=-38-(-30)=-8 \end{gathered}

Therefore, the parameters can be substituted into the formula to find the 52nd term:

\begin{gathered} n=52 \\ \therefore \\ a_{52}=-30+(52-1)(-8) \\ a_{52}=-30+51(-8)=-30-408 \\ a_{52}=-438 \end{gathered}

The 52nd term is -438.

8 0
1 year ago
Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada
oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

y = a*x + b

donde a es la pendiente y b es la ordenada al origen.

Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

y = -2*x + b

También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

-1 = -2*5 + b

-1 = -10 + b

-1 + 10 = b

9 = b

Entonces la ecuación de la recta es:

y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

donde k es la ordenada de este punto.

Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

7 0
3 years ago
A person suspects a standard number cube is not so standard. Another person rolls this cube 100 times, and it lands on a six 42
Ksju [112]

Answer:

The chance of an average six-sided number cube landing one one number is 1/6, or approximately 16.67%. When rolling a number cube 100 times, the average number of times it lands on any specific number should be fairly close to 16.67.

A 6 being rolled 42 times and 33 times means that it is <em>very likely</em> not to be a standard number cube. Although we cannot know for certain, the chance of this happening is very low.

3 0
3 years ago
laura has a toy robot collection 4/7 of her robots makes noise how many of lauras robots make noise? and can u show ur work pls
ololo11 [35]

Answer:

57 percent

Step-by-step explanation:

4 divided by 7= .57

  •                57 reminder 1
  •             ________
  •          7l 40
  •               35
  •                  50
  •            so the total is 57      
4 0
2 years ago
A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor
Step2247 [10]

The mean time in hours per day for newborn babies is 16.5 hours ⇒ D

Step-by-step explanation:

A sleep time of 15.9 hours per day for a newborn baby is at the 10th

percentile of the distribution of sleep times for all newborn babies

Assuming the distribution is normal with a standard deviation of

0.5 hour

To find the mean time let us do that

1. Use the normal distribution table to find the corresponding z-score

   for 10th percentile

2. Use the rule μ = x - zσ, where μ is the mean, σ is the standard

    deviation and x is the score

3. Substitute the values of x, σ and z in the rule to find μ

Look to the normal distribution table to find z-score that equivalent

to the area = 10/100 = 0.1 (10th percentile)

∵ z-score = -1.28

∵ σ = 0.5 hour

∵ x = 15.9

∵ μ = x - zσ

- Substitute the values in the rule

∴ μ = 15.9 - (-1.28)(0.5)

∴ μ = 15.9 + 0.64

∴ μ = 16.54 ≅ 16.5 hours

The mean time in hours per day for newborn babies is 16.5 hours

Learn more:

You can learn more about the normal distribution curve in brainly.com/question/8799684

#LearnwithBrainly

6 0
3 years ago
Other questions:
  • A bag contains 2 white marbles abd six black marbles.
    8·1 answer
  • What is the measure of angle A?
    14·1 answer
  • 49 POINTS!!!!!!!! PLZ HELP!
    12·1 answer
  • Answer dis in a big hurry and will give brainliest!!!
    12·1 answer
  • the sum of two numbers is 67. the smaller number is 3 less then the larger number. what are the two numbers?
    14·2 answers
  • Multiply and answer in scientific notation:
    5·1 answer
  • 8 necklace have 864 beads in all how many beads will 15 such necklace have?​
    13·1 answer
  • Help please?????????????
    7·1 answer
  • Question 1
    8·1 answer
  • A cast iron pipe used as a water main for a home has an outer diameter of 8 in. If the pipe has a thickness of 0.25 in, what vol
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!