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
seropon [69]
2 years ago
12

(6x+1/2)+(2x-8 1/2)Simplify the expression.

Mathematics
1 answer:
ella [17]2 years ago
7 0

Answer:

simplified = 8x - 8

Step-by-step explanation:

trust me :)

You might be interested in
If Fred’s age now is three times what it was 12 years ago, how old is Fred 12 years ago?
Nikitich [7]

Answer:

6

Step-by-step explanation:

12+x=3x

2x=12

x=6

6 0
1 year ago
The difference of a number squared and the number is one less than four times the number.
Ostrovityanka [42]
The difference (subtraction) of a number (x) squared (²) and the number (x) is (=) one less than (- 1) four times (4 ·) the number (x)

x² - x = 4x - 1
7 0
3 years ago
Write an equation of the circle with center (2, -9) and radius 3.
KiRa [710]

Answer:

c =  {g}^{2}  +  {f}^{2} +   {r}^{2}  \\ c =  {2}^{2}  +  {( - 9)}^{2}  +  {3}^{2}  \\ c = 94 \\  =  >  \:  {x}^{2}  +  {y}^{2}  - 4x + 18y + 94 = 0

8 0
2 years ago
Find the Domain and Range of the graph<br> Plz helppppppppppp
Semenov [28]
Domain: 1 2 3 4 5 6 range: -1 0 1 2 3 6
3 0
2 years ago
Read 2 more answers
What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean
Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n  = 90

Standard error =

\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} =  10.54

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(test score within 10 points)

P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%

P(492 \leq x \leq 512) = 65.8\%

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0
3 years ago
Other questions:
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    15·1 answer
  • $8050 invested for 5 years at 4.8% p.a
    11·1 answer
  • Please Help Me i beg
    5·1 answer
  • Simplify : -26b^2 + (-27b^2)
    12·2 answers
  • Let r be the region in the first quadrant bounded by the graph y=8- x^ (3/2) Find the area of the region R . Find the volume of
    6·1 answer
  • What is 1/3 of 6/7. please help very important
    9·1 answer
  • For f(x)=4x+1 and g(x)=x^-5, find (f+g)(x)
    9·2 answers
  • Plz help me with the attachment
    15·2 answers
  • Which linear inequality is represented by the graph?
    6·2 answers
  • How can I Estimate the mean length. How can I select the modal class ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!