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3 years ago

20 POINTS AND WILL GIVE BRAINLIEST IF MORE THAN ONE ANSWER!

Mathematics

1 answer:

pickupchik [31]3 years ago

5 0

Answer:

Step-by-step explanation:

Step-by-step explanation:

has:

1) amplitude=|a|

2) phase shift=b

3) period=2pi/c

d) vertical shift=d

--------------------------------------------------

You are given the amplitude is 2. This means a could either be 2 or -2.

You are given phase shift is -1/8. This means b is -1/8.

You are given the period is pi. So we need to solve pi=2pi/c.

pi=2pi/c

Dividing both sides by pi gives:

1=2/c

Multiply both sides by c gives:

c=2

The vertical shift is -2 so d=-2.

The equation could either be:

y=2cos(2(x-(-1/8)))-2

y=-2cos(2(x-(-1/8)))-2

Simplifying a little gives:

y=2cos(2x+1/4)-2

y=-2cos(2x+1/4)-2

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if anyone can solve this gets a $10 gamestop card i already got the codeSolve for x. Show each step of the solution. 2.5(10 - x)

schepotkina [342]

Remark

Forget the Gamestop. I'd never use it. This one is on the house.

Solution

2.5(10 - x) + 10 = 72 - 1.5x*(5x + 12) The first step is to remove the brackets. Be very careful you understand the bracket on the right.

25 - 2.5x + 10 = 72 - 7.5x - 18 Study the signs carefully. Collect like terms.

35 - 2.5x = 54 - 7.5x Add 7.5x to both sides.

35 - 2.5x + 7.5x = 54 - 7.5x + 7.5x

35 + 5x = 54 Subtract 35 from both sides.

5x = 19 Divide by 5

x = 19/5

x = 3 4/5 = 3.8

Check

When you numbers are so cumbersome, you should check the answer.

LHS

2.5(10 - 3.8) + 10

2.5(6.2) + 10

15.5 + 10

25.5

RHS

72 - 1.5(5*3.8 +12)

72 - 1.5(19 + 12)

72 - 1.5(31)

72 - 46.5

25.5

RHS = LHS The solution checks.

4 0

4 years ago

Solve equation (n-1)(n+6)(n+5)=0

Vika [28.1K]

Answer:
1, -6 and -5

Explanation:
To solve the equation means to get the values of n which satisfy the given equation.
The equation given is:
(n-1) (n+6) (n+5) = 0
This equation will be true if any of the terms (brackets) is equal to zero.
This means that:
either n-1 = 0 .............> n = 1
or n + 6 = 0 ................> n = -6
or n + 5 = 0 ................> n = -5

Hope this helps :)

5 0

4 years ago

Read 2 more answers

Can anyone help me with this math problem plss?

gulaghasi [49]

Answer:

14/24 ( simplified = 7/12)

Step-by-step explanation:

to find this we multiply the fractions 2/3 and 7/8

7/8 x 2/3 = 14/24

So Shannon ate 14/24 lb

You can simplify to = 7/12

3 0

3 years ago

Write 5/8 as a percent A) 62.5% B) 58% C) 85% D) 12.5%

Leno4ka [110]

A) 62.5%

5 divided by 8 is 0.625, then multiply by 100 to get 62.5 :)

5 0

3 years ago

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You want to buy a new winter coat that originally costs $115. The coat was marked down to $86.25 so you bought it. What percent

romanna [79]

Answer:

Step-by-step explanation:

The regular price is $62.50.

Explanation:

If the sale price is $50, and the sale is 20% off, that means the $50 represents the other 80% of the regular price—the part that you do pay. So then we ask ourselves, okay, $50 is 80 percent of... what? In math speak, that would be written as

$50(is)80%(of)(regular price)

$50=80% × r

Solving this for r, we get

r=$5080%

We remind ourselves that the "percentage" symbol is just a shorthand for "divide this number by 100." The equation becomes

r=$5080/100=$500.8=$62.50

So the regular price is $62.50.

Bonus:

A general formula can be used for any regular price r, any percent discount p, and any sale price s:

p%off of reg.price is sale price

(100−p)%× r = s

As long as we know two of the three variables {p,r,s}, we can solve for the third one.

Learn more : brainly.com/question/tcs1299821

4 0

3 years ago

Read 2 more answers