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Ivenika [448]
3 years ago
7

Find the sum 7+101/2+14+.........+84​

Mathematics
1 answer:
rewona [7]3 years ago
3 0

Answer: 155.5 Is your sum! (❤´艸`❤)

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The value of a $3000 computer decreases about 30% each year. write a function for the computers value V(t)
den301095 [7]

Answer:

Function for given situation is : V(t)=3000(0.70)^t

Value of computer after 4 years = $720.3.

Step-by-step explanation:

Given that the value of a $3000 computer decreases about 30% each year. Now we need to write a function for the computers value V(t). then we need to find about how much will the computer be worth in 4 years.

It clearly says that value decreases so that means function represents decay.

For decay we use formula:

A=P(1-r)^t

where P=initial value = $3000,

r= rate of decrease =30% = 0.30

t= number of years

A=V(t) = future value

so the required function is V(t)=3000(1-0.30)^t

or V(t)=3000(0.70)^t

Now plug t=4 years to get the value of computer after 4 years.

V(4)=3000(0.70)^4

V(4)=720.3

Hence final answer is $720.3.

7 0
3 years ago
Read 2 more answers
A 15 ft. telephone pole has a wire that extends from the top of the pole to the ground. The wire and the ground form a 42 angle.
erastovalidia [21]

The correct answer is A wire=22.4ft distance 16.7ft


5 0
3 years ago
Read 2 more answers
Please help Need help
Anettt [7]
This problem can be readily solved if we are familiar with the point-slope form of straight lines:
y-y0=m(x-x0) ...................................(1)
where 
m=slope of line
(x0,y0) is a point through which the line passes.

We know that the line passes through A(3,-6), B(1,2)

All options have a slope of -4, so that should not be a problem.  In fact, if we check the slope=(yb-ya)/(xb-xa), we do find that the slope m=-4.

So we can check which line passes through which point:

a. y+6=-4(x-3)
Rearrange to the form of equation (1) above,
y-(-6)=-4(x-3)  means that line passes through A(3,-6) => ok

b. y-1=-4(x-2) means line passes through (2,1), which is neither A nor B
   ****** this equation is not the line passing through A & B *****

c. y=-4x+6  subtract 2 from both sides (to make the y-coordinate 2)
   y-2 = -4x+4, rearrange
   y-2 = -4(x-1)  
   which means that it passes through B(1,2), so ok

d. y-2=-4(x-1)
   this is the same as the previous equation, so it passes through B(1,2), 
   this equation is ok.

Answer: the equation y-1=-4(x-2) does NOT pass through both A and B.
   
8 0
3 years ago
What is the lcm of 6 and 8
Dafna1 [17]

Answer:

Explanation:

Method 1

First, list the multiples of both numbers:

undefined

To find the lowest common multiple (LCM) of 6 and 8, first express the numbers as a product of its prime factors.

\begin{gathered} 6=2\times3 \\ 8=2\times2\times2=2^3 \end{gathered}

Next, pick the highest powers for each of the numbers:

\begin{gathered} \text{LCM}=2^3\times3 \\ =8\times3 \\ =24 \end{gathered}

5 0
1 year ago
What is the value of n In the following<br>100 : 500 = n : 5​
mrs_skeptik [129]

Step-by-step explanation:

ratio means over so,

<u>1</u><u>0</u><u>0</u><u> </u>= <u>n</u>

500 5

<u>5</u><u>0</u><u>0</u>n = 500

500

n=1

6 0
3 years ago
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