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
Mars2501 [29]
2 years ago
11

Need help with questions 32-33

Mathematics
2 answers:
nirvana33 [79]2 years ago
7 0

<u>I will assume 'xx' as one variable, in other words, it isn't equal to x²</u>:

 ⇒ its just 'xx'

<u>For question 32, let's solve</u>:

 \frac{xx}{9}=\frac{2}{3}  \\3xx=9*2\\3xx = 18\\xx=6  --> choice (c)

<u>For question 33, let's solve:</u>

 \frac{3}{xx} =\frac{5}{xx-2}\\3(xx-2)=5*xx\\3xx-6=5xx\\5xx-3xx=-6\\2xx=-6\\xx=-3--> choice (b)

<u>Answers:</u>

  • <u>For question 32: (c)</u>
  • <u>For question 33: (b)</u>

Hope that helps!

   

velikii [3]2 years ago
4 0
The answer for 32 is 6 and the answer for 33 is -3
You might be interested in
Find the solution set of the inequality <br><br> 8x - 8 ≤ -72
motikmotik
The answer is inequality is x< -8 u see for the right next to -72 the pattern like that I don’t have it so the less than has the under line
7 0
3 years ago
Read 2 more answers
A real estate agent has surveyed houses in twenty nearby zip codes in an attempt to put together a comparison for a new property
gladu [14]

Answer:

A a house in that market that sells for ​$300,000 is unusual.

Step-by-step explanation:

Let the random variable <em>X</em> denote the price of a house and the random variable <em>Y</em> denote the living area of a house.

The number of houses surveyed by the real estate agent is, <em>n</em> = 1057.

Assume that both the random  variables, <em>X </em>and <em>Y</em> are approximately normally distributed.

That is,

X\sim N(\$169400,\ \$68438)\\\\Y\sim N(2058\ \text{sq. ft.},\ 790\ \text{sq. ft.})

To compute the probability of a Normal distribution we first need to convert the raw scores to <em>z</em>-scores.

z=\frac{\text{Raw score}-\mu}{\sigma}

A <em>z</em>-score higher than 1.96 and lower than -1.96 are considered unusual. The values having these <em>z</em>-scores are considered as outliers.

(1)

Compute the <em>z</em>-score for <em>X</em> = 300000 as follows:

z=\frac{X-\mu}{\sigma}\\\\=\frac{300000-169400}{68438}\\\\=2.70

(2)

Compute the <em>z</em>-score for <em>Y</em> = 3000 as follows:

z=\frac{Y-\mu}{\sigma}\\\\=\frac{3000-2058}{790}\\\\=1.19

The <em>z</em>-score for a house in that market that sells for ​$300,000 is more than 1.96.

This implies, that the price $300,000 is unusually high.

The complete statement is:

The house that sells for ​$300 comma 000 has a​ z-score of <u>2.70</u> and the house with 3000 sq ft has a​ z-score of <u>1.19</u>.

5 0
3 years ago
Lucero dibujo las diagonales de un polígono regular y se dio cuenta que tiene que trazar 7 diagonales más que el numero de lados
Schach [20]

Answer:

The sum of all internal angles of this polygon is: 900^o

Step-by-step explanation:

Recall that the formula for the number of diagonals of a polygon with n-sides is given by the formula:

diagonals=\frac{n\,(n-3)}{2}

and since Lucero noticed that the number of digonals was 7 more that the number of sides, then, these two quantities (n + 7) and the number of diagonals must be equal. we can set an equation stating such, and solve for "n" (number of sides of the polygon):

n+7=\frac{n\,(n-3)}{2} \\2(n+7)=n(n-3)\\2\,n+14=n^2-3\,n\\n^2-3\,n-2\,n-14=0\\n^2-5\,n-14=0\\(n-7)\,(n+2)=0\\

therefore n = 7 or n = -2

The only answer with meaning is the first one (7 sides), since a polygon must have a positive number of sides.

Now that we know the number of sides of the polygon, we can find what the sum of its internal angles should give, based on the equation;

Addition of internal angles of a polygon is = (n-2)\,180^o

Which in our case renders:

(n-2)\,180^o=(7-2)\,180^o= 5\,(180^o) = 900^o

4 0
3 years ago
Helppp!!!!!! :(((((((((((((((((((((((((((((
slavikrds [6]

Answer:

Step-by-step explanation:

1.     9/5                                2.     5/9                                 3.    596/8                                        4. 1/55                                                               5.     6/7                               6. 1/3                                      7.   4/7                                         8.    10/9                 9.     11/7                               10.  4/8                                   11.        5/7                                   12. 2/5

5 0
3 years ago
What is B^y=x in logarithmic form?
Gala2k [10]

Answer:

The logarithmic function for x = 2y is written as y = log2 x or f(x) = log2 x. The number 2 is still called the base. In general, y = logb x is read, “y equals log to the base b of x,” or more simply, “y equals log base b of x.” As with exponential functions, b > 0 and b ≠ 1

5 0
3 years ago
Read 2 more answers
Other questions:
  • Hi, can someone please answer this question? Thanks!!!
    8·1 answer
  • What percent of 70 is 28?
    5·2 answers
  • Is 55 miles per hour a unit rate
    14·2 answers
  • Formula; V=IR, I=2.2, V=5.98, find R
    15·1 answer
  • Help helppp help i need answerr thank Uuuuuuuuu​
    14·2 answers
  • Pythagorean theorem ​
    8·2 answers
  • Need help solving this problem
    12·2 answers
  • True or False: An asymptote is a line in which a graph gets close to but never crosses.
    11·2 answers
  • I am Pat, Good Legs Lance, and Colorado Bronze are horses in a horse race. Their probabilities of winning the race are as follow
    6·2 answers
  • Are the equations 9x=5x+4 and 14x=4 equivilant?​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!