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2 years ago

What is the factored form of 9X^2-64

2 answers:

8 0

This should be recognized as the difference of perfect squares which is of the form:

(a^2-b^2) and the difference of squares always factors to:

(a-b)(a+b) in this case:

(3x-8)(3x+8)

emmasim [6.3K]2 years ago

4 0

(3x-8)(3x+8) would be the factored form of 9x^2-62

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In a package of candy there is a total of 24 yellow pieces. For every 5 green pieces in the package, there are 8 yellow pieces.

IgorLugansk [536]

Answer:

15 green pieces.

Step-by-step explanation:

8x = 24

x = 3.

So you need 3 times the amount of green pieces for every yellow piece.

3 * 5 green pieces = 15 green pieces

7 0

2 years ago

Which answer shows a correct slope calculation?

Sliva [168]

If the lines with those given slopes go trough 2 points then

A) is correct if the points are (6, 0) and (0, 3)

B) is correct if the points are (0, 0) and (-6, 3)

C) is correct if the points are (-6, 0) and (0, 3)

5 0

2 years ago

Find a vector equation and parametric equations for the line. (Use the parameter t.)The line through the point (4, 2.1, 3.1) and

olga_2 [115]

Answer:

Vector equation:

$(4 + 6t, 2.1 + 4t, 3.1 - 2t)$

Parametric equations:

$x(t) = 4 + 6t$

$y(t) = 2.1 + 4t$

$z(t) = 3.1 - 2t$

Step-by-step explanation:

The line is parallel to the vector 3i + 2j − k.

So the vector of this line is a multiple of this vector, so i will use 6i + 4j - 2k.

The line goes through the point (4, 2.1, 3.1).

So the parametric equations are:

$x(t) = 4 + 6t$

$y(t) = 2.1 + 4t$

$z(t) = 3.1 - 2t$

The vector equation is:

$(4 + 6t, 2.1 + 4t, 3.1 - 2t)$

3 0

2 years ago

The density of water is 1000 kilograms per cubic meter, and the density of ice is about 916 kilograms per cubic meter. If 575 ki

valina [46]

Answer:

Step-by-step explanation:

Its c

3 0

2 years ago

Mike sells calculators. His competitor sells a new calculator line for $14 each . Mike needs a 40% markup on selling price to ma

Sergio039 [100]

Answer:

cost to afford to bring these calculators is $8.4

markup on retail = 5.6

Step-by-step explanation:

given data

selling price = $14

mark up on selling = 40% = 40/100 = 0.40

to find out

What cost can Mike afford to bring these calculators

solution

we calculate markup on retail that is mark up on selling of selling price

markup on retail = 0.40 × 14

markup on retail = 5.6

cost to afford to bring these calculators = 14 - 5.6

cost to afford to bring these calculators is $8.4

3 0

3 years ago