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marishachu [46]
2 years ago
8

Please please please can someone help me :)

Mathematics
1 answer:
disa [49]2 years ago
8 0

Answer:

Step-by-step explanation:

now the equation looks like

3-4Cos(x)=y

hmmm i'm wondering if you can figure it out from here???  it's the same as the other two.. plug in that \sqrt{2} /2  .. can you?   :)

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3x-13=74 solve for x
never [62]

Answer:

x=29

Step-by-step explanation:

3x-13=74

We want to solve for x, so we need to isolate it.

The first step is to add 13 to each side.

3x-13+13=74+13

3x = 87

Then we divide by 3 on each side

3x/3 = 87/3

x= 29

7 0
3 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
I need to find cos z please
Svetach [21]

Answer: 61.92751306414704

Step-by-step explanation:

6 0
3 years ago
Evaluate 66 - 20 - 32 1/4
BigorU [14]

Answer:

13.75

Step-by-step explanation:

66-20- 32 1/4

66-20- 32.25

46-32.25

13.75

8 0
3 years ago
Mark as brainlest! Write an equation for each problem. Then solve. If necessary, round your answers to the nearest hundredth.
MatroZZZ [7]

Answer:

a.$138

b.$197

Step-by-step explanation:

(/=division)

a.415/30=138

b.138/7=197

Hope I helped :D

5 0
3 years ago
Read 2 more answers
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