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Solnce55 [7]
3 years ago
12

PLEASE HELP I NEED THIS TO BE DONE

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0
To find the mean you add all the #'s and divide by how many there are. 4+5+6+7 +8= 30 /5 is 6. Tara is right. 
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The areas of two similar figures are 20 cm^2 and 45 cm^2. What is the scale factor of their corresponding sides?
ra1l [238]

Answere areas of twosssss similar figures arddde 20 cm^2 and

Step-by-step explanation:

=--------------------------------

4 0
3 years ago
Solve.<br><br> 3x + 2y = 7 and<br><br> 4x – 3y = -2
lapo4ka [179]

just look up math papa algebra calculator it gives you the answer and explains it step by step :)

4 0
3 years ago
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Evaluate the following when x = 3<br> 2x+ 5(x)
Nina [5.8K]

Hi!

I can help you with joy!

Evaluate:

\fbox{2x+5x} when \fbox{x=3}

First, add x's:

\rm{7x}

Now, plug in the value of x (3)

\rm{7(3)

Multiply:`

\rm{21} (Answer)

Hope it helps!

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4 0
2 years ago
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
Please help asap, i will mark as brainliest. please try to find the answer! asap
Hitman42 [59]
1. 14.4 km, 2. 25.2 km, 3. 37.8 km
8 0
3 years ago
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