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2 years ago

PLEASE HELP!!!!!!!!!!!!

Mathematics

2 answers:

Dafna11 [192]2 years ago

7 0

Answer:

Step-by-step explanation:

Llana [10]2 years ago

4 0

Answer:

Step-by-step explanation:

2(x^2-3)+8

plug in 2 for x ez

2(2^2-3)+8

2(1)+8

=10

(=^w^=)

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X 2 +y 2 +4x−5=0 standard equation <br><br> Really need help I’m confused

Firdavs [7]

I used the completing the square method to get the (x+2)^2. The final line is in standard form.

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3 years ago

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Could someone help? :)

cluponka [151]

The value missed is 1 min / 60 seconds

<h3>What is unit conversion?</h3>

Units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.

To convert 720 seconds to hour,

First convert second to minutes divide by 60 and then again convert minutes to hour again divide by 60.

So,

720 seconds * ( 1 minutes / 60 seconds) * ( 1 hour / 60 minutes)

= 12 hours.

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brainly.com/question/4736731

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1 year ago

Rich is comparing the cost of maintaing his car with the depreciating value of the car. When will the cost and value be the same

goldfiish [28.3K]

Complete question:

Rich is comparing the cost of maintaining his car with the depreciation value of the car.

The value starts at $20,000 and decreases by 15% each year. The maintanance cost is $500 the first year and increases by 28% per year.

When will the maintenance cost and the value be the same.

Answer:

9 years

Step-by-step explanation:

Depreciation is modeled by an exponential function :

A = p(1 - r)^t [decrease, '-']

A = 20,000(1 - 0.15)^t

A = 20000(0.85)^t - - - (1)

Maintainace cost :

A = p(1 + r)^t ; [increase, '+']

A = 500(1 + 0.28)^t

A = 500(1.28)^t - - - (2)

Equating (1) and 2

20000(0.85)^t = 500(1.28)^t

1.28^t / 0.85^t = 20000/500

(1.28 / 0.85)^t = 40

Take log of both sides

Log (1.28 / 0.85)^t = log 40

t * 0.1777910 = 1.6020599

t = 1.6020599 / 0.1777910

t = 9.01

t = 9 years

8 0

3 years ago

.........................

Zigmanuir [339]

Answer:

Step-by-step explanation:

given 3xy + 4yz + 8xz = 10

subtract 8xz from both sides leaving the terms in y together

3xy + 4yz = 10 - 8xz

take out the common factor y on the left side

y(3x + 4z) = 10 - 8xz

divide both sides by (3x + 4z)

y = $\frac{10-8xz}{3x+4z}$ → A

5 0

3 years ago

36 cups equals how many gallons

kondor19780726 [428]

Answer:

2.25 gallons

Step-by-step explanation:

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2 years ago

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