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
dlinn [17]
3 years ago
7

Help me out plzzzzzzzz​

Mathematics
1 answer:
Furkat [3]3 years ago
5 0

Answer:

d

Step-by-step explanation:

5x -2

Answer choices:

a. 2-5x

b. 3-5 +2x

c. 5x-2x

d. 2x-2+3x

a.

2-5x can be rewritten as -5x+2, which is not the same as 5x-2

b. 3-5 + 2x can be rewritten as -2 + 2x or 2x-2 which is not equivalent to 5x-2

c. 5x-2x is 3x

3x doesn't equal 5x-2

d. 2x+3x-2 = 5x-2

This expression is equivalent to 5x-2

You might be interested in
Select the correct answer.<br> if f(x) = x^1/2– x and g(x) = 2x^3 –x^1/2-x <br> find f(x) – g(x).
Igoryamba

f(x) - g(x) =  -2x^{3}+2x^{1/2}

<u>Step-by-step explanation</u>:

<u>Given</u> :

  • f(x) = x^{1/2} -x
  • g(x) = 2x^{3} -x^{1/2} -x

f(x) - g(x) = (x^{1/2} -x) - ( 2x^{3} -x^{1/2} -x)

⇒ (x^{1/2} -x-2x^{3}+x^{1/2} +x)

⇒ -2x^{3}+2x^{1/2}

f(x) - g(x) =  -2x^{3}+2x^{1/2}

6 0
3 years ago
What is the value of r in this expression -4/3r - 1 = -2
Bumek [7]

Answer:

r= -1.3

Step-by-step explanation:

5 0
3 years ago
A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values ar
Kobotan [32]

Answer:

The coefficient of variation for the systolic measurements is 12.8 %

The coefficient of variation for the diastolic measurements is 16.3 %

Therefore, we can conclude that the systolic measurements are less dispersed as compared to diastolic measurements.

Step-by-step explanation:

The coefficient of variation is the ratio of standard deviation of the data to the mean of the data. It shows the dispersion in the data set.

Coefficient of variation for the systolic measurements:

Mean = μ = (120 + 128 + 156 + 98 + 154 + 122 + 118 + 136 + 128 + 120)/10

Mean = μ = 1280/10

Mean = μ = 128

Standard deviation = σ = \sqrt{\frac{1}{N}\sum_ (x-\mu)^{2} }

Using excel the standard deviation is found to be

Standard deviation = σ = 16.4

Coefficient of variation = σ/μ

Coefficient of variation = 16.4/128

Coefficient of variation = 0.128

Coefficient of variation = 12.8%

Coefficient of variation for the Diastolic measurements:

Mean = μ = (79 + 76 + 75 + 51 + 92 + 87 + 59 + 64 + 72 + 81)/10

Mean = μ = 736/10

Mean = μ = 73.6

Standard deviation = σ = \sqrt{\frac{1}{N}\sum_ (x-\mu)^{2} }

Using excel the standard deviation is found to be

Standard deviation = σ = 12

Coefficient of variation = σ/μ

Coefficient of variation = 12/73.6

Coefficient of variation = 0.163

Coefficient of variation = 16.3%

Conclusion:

We can conclude that the systolic measurements (12.8%) are less dispersed as compared to diastolic measurements (16.3%).

7 0
3 years ago
I need help asap!<br> :)
Norma-Jean [14]

Answer:

F^-1(x)=0.125x-0.125

Step-by-step explanation:

Y=8x+1

X=8y+1

8y=x-1

Y=0.125x-0.125

3 0
3 years ago
Read 2 more answers
What's the value of -2/5-(-9/15)?
ollegr [7]

9514 1404 393

Answer:

  B.  -2/5+9/15 = 3/15

Step-by-step explanation:

The only two answer choices that have -2/5 as part of the sum are B and C. Of those, choice C incorrectly represents the subtraction of -9/15.

The only reasonable choice is B.

__

The result can be reduced from 3/15 to 1/5 by removing a factor of 3 from numerator and denominator.

8 0
3 years ago
Other questions:
  • What is product of x/3 and when 6/x y ne0 ?
    6·1 answer
  • Fill in the missing number to complete the linear equation that gives the rule for this table.
    10·2 answers
  • What is the least common denominator for the fractions 5/6 and 3/8 ? A. 24 B. 18 C. 14 D. 48
    7·2 answers
  • A newly constructed fish pond contains 1000 liters of water. Unfortunately the pond has been contaminated with 5 kg of a toxic c
    9·1 answer
  • What is the simplified form of 13?<br> O A. 1<br> O B. -<br> C.<br> OD. -1
    8·1 answer
  • FIRST BRAINIEST Tifania and Sean tried to find the circumference of a circle with a radius of 14 cm. Their work is shown below.
    13·1 answer
  • An Uber service charges a $2.00 initial fee and $1.50 per mile to get a ride. What is the equation for this situation?​
    14·2 answers
  • Help plz asap! test due today​
    7·1 answer
  • Two lengths are in ratio 7:8.if the first length is 273. What amount is the second length
    5·1 answer
  • Follow the steps to find the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!