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
N76 [4]
3 years ago
13

3. Find mZPST. 9 T (111 - 3)" (58-9) Р R

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

Step-by-step explanation:

11x-3+5x-9=180

16x-12=180

16x=192

x=12

<pst=129

You might be interested in
What is the end behavior of the function?
Vinil7 [7]

Answer:

X->-infinite, graph is positive +(infinite)

X-> + infinite, graph is negative (-infinite)

Step-by-step explanation:

When you study end behaviour of a polynomial, you verify it's highest exponent. If it is odd, like this exercise, it's Y values come from negative infinity to positive infinity. If the coefficient is negative, it is the opposite, it comes from positive infinite to negative infinite.

7 0
3 years ago
Read 2 more answers
Which notation is expressed in interval notation x&gt; -2?​
vfiekz [6]

Answer:

( - 2 \:  \infty )

5 0
3 years ago
Find the distance between the two points:<br> (-16,5) and (3,5)
egoroff_w [7]

The distance is 19

Hope this helps! :D

4 0
3 years ago
Read 2 more answers
Which best explains why this triangle is or is not a right triangle?
erastovalidia [21]

Answer:

<h2>This triangle is a right triangle:</h2><h2>36² + 15² = 39².</h2>

Step-by-step explanation:

If a ≤ b <c is the length of the sides of a right triangle, then:

a^2+b^2=c^2

We have

a=15\ in,\ b=36\ in,\ c=39\ in

Check the equality:

L_s=15^2+36^2=225+1296=1521

R_s=39^2=1521

L_s=R_s

It's a right triangle.

6 0
3 years ago
Read 2 more answers
Reagan scored 1140 on the SAT. The distribution of SAT scores in a reference population is normally distributed with mean 1000 a
krok68 [10]

Answer:

Jessie scored higher than Reagan.

Step-by-step explanation:

We are given that Reagan scored 1140 on the SAT. The distribution of SAT scores in a reference population is normally distributed with mean 1000 and standard deviation 100.

Jessie scored 30 on the ACT. The distribution of ACT scores in a reference population is normally distributed with mean 17 and standard deviation 5.

For finding who performed better on the standardized exams, we have to calculate the z-scores for both people.

1. <u>Finding z-score for Reagan;</u>

Let X = distribution of SAT scores

SO, X ~ Normal(\mu=1000, \sigma^{2}=100^{2})

The z-score probability distribution for the normal distribution is given by;

                                    Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 1000

            \sigma = standard deviation = 100

Now, Reagan scored 1140 on the SAT, that is;

       z-score  =  \frac{1140-1000}{100}  =  1.4

2. <u>Finding z-score for Jessie;</u>

Let X = distribution of ACT scores

SO, X ~ Normal(\mu=17, \sigma^{2}=5^{2})

The z-score probability distribution for the normal distribution is given by;

                                    Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 17

            \sigma = standard deviation = 5

Now, Jessie scored 30 on the ACT, that is;

       z-score  =  \frac{30-17}{5}  =  2.6

This means that Jessie scored higher than Reagan because Jessie's standardized score was 2.6, which is 2.6 standard deviations above the mean and Reagan's standardized score was 1.4, which is 1.4 standard deviations above the mean.

6 0
3 years ago
Other questions:
  • The temperature at noon is -4 degrees the temperature drops 1 1/2 degrees per hour for 4 hours. What is the temperature at 4 pm?
    15·1 answer
  • Please help ASAP 25 pts + brainliest to right/best answer
    6·1 answer
  • The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)
    6·1 answer
  • Simplify this expression 3x +2a +5x +4a
    7·1 answer
  • There are 50 students traveling in vans on a field trip. Each van seats 8 students. How many vans are needed.
    6·1 answer
  • Denny has a certain number of fidget spinners.He have 1/3 of the fidget spinners to his brother and 1/9 of the fidget spinners t
    6·1 answer
  • Joni has two U.S coins in her pocket. One of the coins is not a dime. If the total value of coins in her pocket is 11 cents, wha
    5·1 answer
  • How do you turn 6x-5y=8 into slope intercept form?
    14·1 answer
  • Which integer represents each situation <br>deposit of $15​
    7·1 answer
  • What function equation is represented by the graph?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!