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
mr Goodwill [35]
2 years ago
7

Solve for a.

Mathematics
2 answers:
Shalnov [3]2 years ago
3 0

Answer:

the answer is -3

Step-by-step explanation:

1. add the -4 to 10 (-10 + 4)

2. -6= 2a

3. divide both sides by 2

4. -3= a

hope this helps

Bogdan [553]2 years ago
3 0

Answer:

-3

Step-by-step explanation:

You might be interested in
CAN SOMEONE PLEASE HELP ME OUT PLEASE I WOULD APPRECIATE IT VERY MUCH
tatyana61 [14]

Answer:Decreasing

Step-by-step explanation:

Focus only on the 8-10 interval for x. Note that for x=8 , y=1, for x=9, y=0 and for x=10, y=-1. Y is obviously decreasing for 8 .

6 0
3 years ago
A car is being driven at a rate of 40 ft/sec when the brakes are applied. The car decelerates at a constant rate of 10 ft/sec2.
IRISSAK [1]

Answer:

80 feet

Step-by-step explanation:

Given:

Initial speed of the car (v_0) = 40 ft/sec

Deceleration of the car (\frac{dv}{dt}) = -10 ft/sec²

Final speed of the car (v_x) = 0 ft/sec

Let the distance traveled by the car be 'x' at any time 't'. Let 'v' be the velocity at any time 't'.

Now, deceleration means rate of decrease of velocity.

So, \frac{dv}{dt}=-10\ ft/sec^2

Negative sign means the velocity is decreasing with time.

Now, \frac{dv}{dt}=\frac{dv}{dx}(\frac{dx}{dt}) using chain rule of differentiation. Therefore,

\frac{dv}{dx}\cdot\frac{dx}{dt}= -10\\\\But\ \frac{dx}{dt}=v.\ So,\\\\v\frac{dv}{dx}=-10\\\\vdv=-10dx

Integrating both sides under the limit 40 to 0 for 'v' and 0 to 'x' for 'x'. This gives,

\int\limits^0_{40} {v} \, dv=\int\limits^x_0 {-10} \, dx\\\\\left [ \frac{v^2}{2} \right ]_{40}^{0}=-10x\\\\-10x=\frac{0}{2}-\frac{1600}{2}\\\\10x=800\\\\x=\frac{800}{10}=80\ ft

Therefore, the car travels a distance of 80 feet before stopping.

4 0
2 years ago
Please help! <br> 70+23x-5+110+14x=360 (please show step bc I need to turn in work-paper) Thank you!
daser333 [38]

x = 5

<u>explanation</u>

70 + 23x - 5 + 110 + 14x = 360

first you group the like terms

23x + 14x + 70 - 5 + 110 = 360

then combine the like terms

<u>23x + 14x</u>    <u>70 - 5 + 110</u>

37x + 175 = 360

subtract 175 from both sides

175 - 175 = 0     360 - 175 = 185

to get

37x = 185

divide both sides by 37

37x/37 = 0     185/37= 5

which gives you

x = 5

3 0
3 years ago
Annie opened a savings account and deposited $10
SVETLANKA909090 [29]
+10 because deposited means put in.
4 0
2 years ago
Read 2 more answers
The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp. Jackie wants to manipulate the
Yanka [14]

A growth rate equation has a general form of:

f(x) = P (1 + r)^x

Where,

P = present value

r = rate of growth

x = number of years

If we write the given equation on that form, it would be:

f(x) = 4 (1 + 3)^x

Therefore we can see that the population’s growth rate is 300% per year. To make this formula to an equivalent of three times a year (3x), we have to find the new r.

f(x)_3 = 4 (1 + r)^3x

To calculate this, we must take note that the expression or value of (1 + r)^x must be constant. Therefore equate this with 4^x.

(1 + r)^3x = (4)^x

Taking the logs of both sides:

3x log (1 + r) = x log 4

Cancelling x:

3 log (1 + r) = log 4

3 (1 + r) = 4

1 + r = 4/3

r = 0.33

Therefore the new growth rate is 0.33 or 33%. (ANSWER)

And, the new correct function is:

f(x)_3 = 4 (1 + 0.33)^3x

or

f(x)_3 = 4 (1.33)^3x              (ANSWER)

3 0
2 years ago
Read 2 more answers
Other questions:
  • Need help asap please...
    13·1 answer
  • A geometric sequence has these properties: a^1=2
    10·1 answer
  • What are the next 2 terms: -9,3,-1...
    13·2 answers
  • What two functions does the brain control and when we sleep
    12·1 answer
  • a used car can be purchased for 4,000 cash or credit . if a credit plan is used the payments are 100$ per month for 4 years. how
    15·1 answer
  • Answer this please!!!!
    12·1 answer
  • ASAP!!! PLEASE help me with this question!!!!!
    12·2 answers
  • Find the length of AB
    8·1 answer
  • I need to know the perimeter because i can't figure out some of the side lengths.
    14·1 answer
  • Six friends create a website. The website earns money by selling banner ads. The site has 5 banner ads. It costs $120 a month to
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!