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den301095 [7]
2 years ago
10

A new car costs $23,649. The dealer

Mathematics
1 answer:
Dominik [7]2 years ago
6 0

Answer:

$1250

Step-by-step explanation:

subtract $22399 from $23649 which is $1250

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C

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Solve the system using substitution.
miv72 [106K]

Substitution method is one of the ways to solve this system.

-5x+y=4 and 4x-4y=16.

First we will divide the second equation with number 4 and get

x-y=4 => x=y+4 than we will replace x in the first equation

-5(y+4)+y=4 => -5y-20+y=4 => -4y=4+20 => -4y=24 => y=-6

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3 years ago
Express x^2+8x+15 in the form (x+a)^2-b
IRINA_888 [86]
<h2>'(x+4)^2-1' in the form of (x+a)^2 - b.</h2>

Step-by-step explanation:

We have,

x^2 + 8x + 15

To express x^2 + 8x + 15 in the form of  (x+a)^2 - b = ?

∴ x^2 + 8x + 15

Adding and subtracting 1, we get

= x^2 + 8x + 15 + 1 - 1

= x^2 + 8x + 16 - 1

= x^2 + 2(x)(4) + 4^{2} - 1

Using the algebraic identity,

(x+y)^{2}=x^{2} +2xy+y^{2}

= (x+4)^2-1

Thus, (x+4)^2-1 in the form of (x+a)^2 - b.

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3 years ago
Using the unit circle, what is the exact value of tan pi/6?
ArbitrLikvidat [17]

Answer:

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Step-by-step explanation:

the steps are in the pic above.

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Please help asap
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