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
MA_775_DIABLO [31]
2 years ago
11

What is the value of r in the equation? Negative 1. 5 (4 minus r) = negative 12 –6 –4 4 6.

Mathematics
1 answer:
Debora [2.8K]2 years ago
5 0

Answer:

-458

Step-by-step explanation:

-1.5(4 - r) = -12 - 6 -446

-6 + r = -464

r = -458

You might be interested in
Prove the function f: R- {1} to R- {1} defined by f(x) = ((x+1)/(x-1))^3 is bijective.
Eduardwww [97]

Answer:

See explaination

Step-by-step explanation:

given f:R-\left \{ 1 \right \}\rightarrow R-\left \{ 1 \right \} defined by f(x)=\left ( \frac{x+1}{x-1} \right )^{3}

let f(x)=f(y)

\left ( \frac{x+1}{x-1} \right )^{3}=\left ( \frac{y+1}{y-1} \right )^{3}

taking cube roots on both sides , we get

\frac{x+1}{x-1} = \frac{y+1}{y-1}

\Rightarrow (x+1)(y-1)=(x-1)(y+1)

\Rightarrow xy-x+y-1=xy+x-y-1

\Rightarrow -x+y=x-y

\Rightarrow x+x=y+y

\Rightarrow 2x=2y

\Rightarrow x=y

Hence f is one - one

let y\in R, such that f(x)=\left ( \frac{x+1}{x-1} \right )^{3}=y

\Rightarrow \frac{x+1}{x-1} =\sqrt[3]{y}

\Rightarrow x+1=\sqrt[3]{y}\left ( x-1 \right )

\Rightarrow x+1=\sqrt[3]{y} x- \sqrt[3]{y}

\Rightarrow \sqrt[3]{y} x-x=1+ \sqrt[3]{y}

\Rightarrow x\left ( \sqrt[3]{y} -1 \right ) =1+ \sqrt[3]{y}

\Rightarrow x=\frac{\sqrt[3]{y}+1}{\sqrt[3]{y}-1}

for every y\in R-\left \{ 1 \right \}\exists x\in R-\left \{ 1 \right \} such that x=\frac{\sqrt[3]{y}+1}{\sqrt[3]{y}-1}

Hence f is onto

since f is both one -one and onto so it is a bijective

8 0
3 years ago
There are 45 boys and 54 girls in your school’s senior class. What is the ratio of boys to girls
strojnjashka [21]

Answer:

5/6

Step-by-step explanation:

The ratio is:

45 / 54

Or, reduced:

5 / 6

7 0
3 years ago
Data were collected on the number of days per week that members visit a certain fitness center. The values varied from 0 to 7, a
pshichka [43]

Answer:

D

Step-by-step explanation:

choice A is not guaranteed since the values varied from 0 to 7.

choice B seems alright, but doesn't include about or anything about the long run.

choice C is incorrect because 50% are less than 3.12 and 50% are greater than 3.12.

choice D seems pretty good, since it says average, long run, approach, etc.

choice E is incorrect because it says "will be". It is not definite.

8 0
3 years ago
He sum of two numbers, x and y, is 12. the difference of x and two times y is 6. what are the values of x and y? x = 8, y = 4 x
Sveta_85 [38]
The last choice is correct
8 0
2 years ago
Noahzimmerman0987654321
sattari [20]

Answer:

ummm what is this for tho?

5 0
3 years ago
Other questions:
  • An oil company is considering 2 sites on which to drill, described as follows:
    7·1 answer
  • Find the mean and the median of the data set: 9, 7, 7, 4, 18 , 8, 5, 2,
    7·2 answers
  • A drawer contains five pairs of socks that are brown, black, white, red, and blue. Claude takes the red socks out of the drawer.
    10·2 answers
  • hayden has 6 rolls of dime s there are 50 dimes in each roll how many dimes does he have altoghether?
    14·2 answers
  • A local hamburger shop sold a combined total of 768 hamburgers and cheeseburgers on Saturday. There were 68 more cheeseburgers s
    5·1 answer
  • For f(x)=2x+1 and g(x)=xsquared-7 find (f-g)(x)
    6·1 answer
  • Ruth is putting up a framed map of south america in her room. She wants it exactly halfway between her door and her closet, whic
    7·1 answer
  • 44.3 round to the whole number
    5·2 answers
  • Offering 50 points really need help on homework
    14·1 answer
  • This is part of my other question
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!