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
Oduvanchick [21]
3 years ago
6

Solve for x:

Mathematics
1 answer:
pentagon [3]3 years ago
3 0

Answer:

2<x<3

Step-by-step explanation:

4x-4<8 AND 9x+5>23

Solve the first inequality

4x-4<8

Add 4 to each side

4x-4+4 <8+4

4x<12

Divide by 4

4x/4 <12/4

x <3

Solve the second inequality

9x+5>23

Subtract 5 from each side

9x+5-5>23-5

9x >18

Divide by 9

9x/9>18/9

x>2

Put together

x<3 and x>2

2<x<3

You might be interested in
The ratio of boys to girls in the gym class at a local middle school is 3:2. what percent of the gym class is girls
sukhopar [10]
3 boys for every 2 girls
So, the percentage of girls is (2 / 5) x 100 = 40%


5 0
3 years ago
. i will give brainliest.A man is 26 years older than his son. He is also 8 years older than three times his son’sage.
Shkiper50 [21]

Step-by-step explanation:

Let the son's age be x and man be y

y=26+x

y=8+3x

x=9

Son's age is 9

6 0
3 years ago
Read 2 more answers
Helpppp me pleaseeeee!!! This is due in 10 minutes put an explanation pleaseee thank you.
Juliette [100K]

Use cross multiplication

5 0
2 years ago
You recently sent out a survey to determine if the percentage of adults who use social media has changed from 66%, which was the
il63 [147K]

Answer:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Of the 2809 people who responded to survey, 1634 stated that they currently use social media.

This means that n = 2809, \pi = \frac{1634}{2809} = 0.5817

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 - 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.56

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 + 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.6034

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

6 0
2 years ago
Determine whether each pair of triangles is similar. Justify your answer.
tresset_1 [31]
M<J = m<N      ( alternate angles)
m<K = m<M    ( alternate angles)

so the third angles must also be equal  ( total 180 degrees in each triangle)

Therefor the triangles are similar
7 0
3 years ago
Read 2 more answers
Other questions:
  • Given a long integer find the number of ways to represent it as a sum of two or more consecutive positive integers
    10·1 answer
  • Example for empirical probability
    12·1 answer
  • ared has taken out a loan for his car. His monthly payments amount to $650. If his loan is for 36 months, and he paid a down pay
    9·1 answer
  • (×2+1)(x3+2x)(x2+4x-16i-4xi) Solve for the roots in equation
    13·1 answer
  • Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)?
    13·2 answers
  • Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
    15·1 answer
  • Find the measure of each angle listed below. Enter only numbers without space.
    15·1 answer
  • Hello! Please ignore the stuff I already wrote, can someone help me find x and y?
    12·1 answer
  • What is the mean absolute deviation for this set 65 95 85 70 70 95 55
    9·2 answers
  • Answer this volume based Question. I will make uh brainliest + 50 points​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!