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
bagirrra123 [75]
4 years ago
13

Simplify the expression. -6a + 7(-2a — 4) = Please just write answer I have limited time

Mathematics
2 answers:
Advocard [28]4 years ago
7 0

Answer:

8a - 28

Step-by-step explanation:

-6a+7(-2a-4)\\-6a-14a-28\\8a-28

disa [49]4 years ago
6 0
Just the answer is −20a − 28
You might be interested in
Karen is starting a career as a professional wildlife photographer and plans to photograph Canadian Geese at one of the staging
balandron [24]

Answer:

$5000*0.816 = $4082

Step-by-step explanation:

It's a strange question, but based on the statement and the question it sounds like it's a poisson distribution:

* For 3 days she was able to get 2 good shots (<em>typical of that time of the year</em>)

* Good shots happen randomly

* Each day is independent of another

Let's call 'p' the probability that she makes a good shot per day

Let's call 'n' the number of days Karen is taking shots.

So, if in 3 days he got 2 good shots and that is typical at that time of the year, then the expected value for the number of good shots (X) is:

E(x)=\frac{2}{3}

For a Poisson distribution E (x)=\lambda\\\lambda= np

So:

\lambda =\frac{2}{3}

For a Poisson distribution the standard deviation is:

\sigma = \sqrt{\lambda}\\\sigma = \sqrt{\frac{2}{3}}

\sigma = 0.816 this is the standard deviation for the number of buentas taken.

So the standard deviation for income is the price of each shot per sigma

$5000*0.816 = $4082, which is the desired response.

3 0
3 years ago
Which ordered pair is a reflection of (3, 7) across the x-axis?
Rina8888 [55]
(3,7) becomes (3,-7) when reflected across the x axis.
6 0
4 years ago
One number is 7 more than another. If the sum of the two numbers is 165, find the two numbers.
timurjin [86]

x+7+x=165

2x+7=165

2x+7-7=165-7

2x=158

2x÷2=158÷2

x=79

79+7+79=165

3 0
3 years ago
64 -[16 x (-3) – 2 x{17 – 25 }]​
Anna11 [10]

Answer:

96

Step-by-step explanation:

64 -[16 x (-3) – 2 x{17 – 25 }]​   I'm going to take a couple of steps that are very small and they can be combines along with other steps. Combine 16*-3

64 - [-48 - 2*(17 - 25)]            Combine what is inside (17 - 25)

64 - [-48 - 2*(-8)]                    Combine -2*-8

64 - [-48 + 16]                         Combine what is in the brackets.

64 - [-32]                                 Remove the brackets

64 + 32                                    Combine

96

The trick in this question is the signs.

7 0
3 years ago
Find the zeros of y = x2 - 6x – 4 by completing the square.
Pie

Answer:

√13 + 3 = x

-√13 + 3 = x

Step-by-step explanation:

y = x² - 6x - 4

0 = x² - 6x - 4

0 + 13 = x² - 6x - 4 + 13

13 = x² - 6x + 9

13 = (x-3)²

±√13 = x-3

±√13 + 3 = x

√13 + 3 = x

-√13 + 3 = x

7 0
3 years ago
Other questions:
  • A person wishing to itemize non-reimbursed work expenses on his or her federal tax return should ya which tax form? A 1040EZ, B
    11·2 answers
  • Which is cheaper for a 65$ item that costs $7 .25 to ship?
    6·2 answers
  • Is milk souring a chemical or physical change
    11·2 answers
  • Helppp theseee It would be great☺️
    11·2 answers
  • Nuclear Power Plant Some nuclear power plants utilize "natural draft" cooling towers in the shape of a hyperboloid, a solid obta
    13·1 answer
  • Please help quickly I don’t understand
    8·1 answer
  • A (blindfolded) marksman finds that on the average he
    8·1 answer
  • Express x in terms of P if p=6x+2
    7·1 answer
  • Pls help answer it's due in 10 minutes​
    11·1 answer
  • Roger could fit seven action figures on each shelf in his room. His room has two shelves. How many action figures total could hi
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!