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
Fiesta28 [93]
2 years ago
15

IM TIMED PLEASE HELP ME please help math question

Mathematics
2 answers:
adell [148]2 years ago
8 0
Answer: D.

If you substitute the x = 9 into the first equation it will look like this:
2y = (9) - 6
Then solve for y,
2y = 3
y = 3/2

Therefore, the correct answer would be D. (9, 3/2)
This is because ordered pairs are (x,y) and x = 9 and y = 3/2

I hope this helps!!
- Kay :)
Tom [10]2 years ago
3 0

Answer is b because if you do it, it is. I am dum but that doesent matter.

You might be interested in
Math scores on the SAT exam are normally distributed with a mean of 514 and a standard deviation of 118. If a recent test-taker
LuckyWell [14K]

Answer:

Probability that the student scored between 455 and 573 on the exam is 0.38292.

Step-by-step explanation:

We are given that Math scores on the SAT exam are normally distributed with a mean of 514 and a standard deviation of 118.

<u><em>Let X = Math scores on the SAT exam</em></u>

So, X ~ Normal(\mu=514,\sigma^{2} =118^{2})

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

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

where, \mu = population mean score = 514

           \sigma = standard deviation = 118

Now, the probability that the student scored between 455 and 573 on the exam is given by = P(455 < X < 573)

       P(455 < X < 573) = P(X < 573) - P(X \leq 455)

       P(X < 573) = P( \frac{X-\mu}{\sigma} < \frac{573-514}{118} ) = P(Z < 0.50) = 0.69146

       P(X \leq 2.9) = P( \frac{X-\mu}{\sigma} \leq \frac{455-514}{118} ) = P(Z \leq -0.50) = 1 - P(Z < 0.50)

                                                         = 1 - 0.69146 = 0.30854

<em>The above probability is calculated by looking at the value of x = 0.50 in the z table which has an area of 0.69146.</em>

Therefore, P(455 < X < 573) = 0.69146 - 0.30854 = <u>0.38292</u>

Hence, probability that the student scored between 455 and 573 on the exam is 0.38292.

7 0
3 years ago
What is the 5 times the sum of 7 and 23
sesenic [268]
PEMDAS
5(7+23)
5(30)
150
Hope this helped :)
7 0
3 years ago
Solve for y: 2½y = ⅝ Answer in simplest form.
MrMuchimi
<h2>1/4 or 0.25</h2>

Step-by-step explanation:

2 \frac{1}{2} y =  \frac{5}{8}

Convert Mixed number to improper fraction.

2 \frac{1}{2}  =  \frac{5}{2}

Equate

\frac{5}{2} y =  \frac{5}{8}

Cross Multiply

5y \times 8 = 2 \times 5 \\ 40y = 10

Divide both sides of the equation by 40

\frac{40y}{40}  =  \frac{10}{40}

Simplify

y =  \frac{1}{4}

5 0
3 years ago
What is the reference angle for π/6
Artemon [7]

Answer:

Step-by-step explanation:

π/6 is its own reference angle; it's positive and between 0 and π/2.

8 0
3 years ago
Can someone help me please
Softa [21]
A I took the test :)
6 0
3 years ago
Other questions:
  • Please someone help
    15·2 answers
  • <img src="https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Bx%2By%3D1%7D%20%5Catop%20%7Bx-2y%3D4%7D%7D%20%5Cright.%20%5C%5C%5Clef
    10·1 answer
  • En un pastel que se quiere repartir a 5 personas, se logran generar 8 piezas al cortarlo, cual de las siguientes expresiones ref
    5·1 answer
  • Evaluate. 5x + 2y2-y3; x =2 and y=4
    9·1 answer
  • A bucket has 16 inches of water in it but there is a hole in the bottom. Use interval notation to write the domain and range of
    14·1 answer
  • TV−→− bisects ∠RTS. If the m∠RTV=(16x−6)° and m∠VTS=(13x+9)° , what is the value of x and the m∠RTV ?
    7·1 answer
  • PLEASE HELP DUE IN 15 MINUTES WILL GIVE BRAINLIEST!
    12·1 answer
  • 9 times the quantity of 12 less than a number x is 24. Write in an algebraic expression.
    15·1 answer
  • Write a statement
    11·1 answer
  • How many people choose football or soccer than baseball or basketball.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!