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Eduardwww [97]
3 years ago
9

The value of a dirt bike decreases by 15% each year. If you purchased this dirt bike today for $500, to the nearest dollar how m

uch would the bike be worth 5 years later?
$84
$119
$164
$222
Mathematics
1 answer:
guapka [62]3 years ago
5 0
$500 x 0.85 = 425
$425 x 0.85 = 361.25
$361.25 x 0.85 = 307.10 
$307.1 x 0.85 = 261
$261 x 0.85 = 221.85 
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(2x)(x2) + (2x)(x) + (2x)(–2) + (3)(x2) + (3)(x) + (3)(–2)<br> Can someone simplify this
alexandr402 [8]

Answer:

2x^3 + 5x^2 - x - 6

Step-by-step explanation:

[NOTE]

I am assuming x2 is x^2, if I am wrong about that then please notify me in the comments

[END NOTE]

The parenthesis are implications that we multiply the numbers within them.

Therefore, multiply.

(2x)(x2)

2x^3

(2x)(x)

2x^2

2x^3 + 2x^2

(2x)(-2)

-4x

2x^3+2x^2-4x

(3)(x2)

3x^2

2x^3+2x^2-4x+3x^2

(3)(x)

3x

2x^3+2x^2-4x+3x^2+3x

(3)(-2)

-6

2x^3+2x^2-4x+3x^2+3x-6

Now combine like terms, meaning the numbers with the same endings, you cannot add a number with different exponents and adding numbers with and without a variable.

2x^3 + 5x^2 - x - 6

5 0
2 years ago
A 10 meter ladder was placed on an angle. The base of the ladder is 5 meters away from the
Olenka [21]

Answer:

5^2 + h^2 = 10^2

Step-by-step explanation:

This is a clear example of the Pythagorean Theorem, a relation of all sides in a right triangle. The equation itself is a^2 + b^2 = c^2. By simply plugging in the given values into the triangle, you would get the answer.

4 0
3 years ago
Read 2 more answers
The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?
borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{3-2}{4-2}=\dfrac{1}{2}

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}

We have the equation:

\dfrac{-3}{x-2}=\dfrac{1}{2}        <em>cross multiply</em>

(1)(x-2)=(-3)(2)

x-2=-6           <em>add 2 to both sides</em>

x=-4

<h3>Answer: x = -4.</h3>
7 0
2 years ago
-3 ≤ 6 <br> add 8 to both sides
yawa3891 [41]

Answer:

-3=5

6=14

so it would be 6

Step-by-step explanation:

8 0
2 years ago
Find an equivalent expression to 5+9
Marina86 [1]
Since 5 + 9 is 14 you can use ANY expression that has the same final value/ sum
6 0
2 years ago
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