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2 years ago

So I have 4 math problems, whether you choose to answer them or not is your choice. Also thank you if you do answer them. :)

Mathematics

1 answer:

cestrela7 [59]2 years ago

3 0

Answer:

1) 9

2) 256

3) -32

4) -2744

Step-by-step explanation:

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Tell whether the lines of the pair of equations are parallel, perpendicular, or neither.

tino4ka555 [31]

First Equation:

$y= -\frac{3}{4} x+2$

Second Equation can be written as:

$y= \frac{3}{4}x+2$

Slope of first equation is -3/4 and slope of second equation is 3/4.
Slope of parallel lines must be equal, and slope of perpendicular lines are the negative reciprocal of each other. None of these conditions can be seen for given two equations.

So, the two lines are neither parallel nor perpendicular.
So correct option is C

7 0

3 years ago

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How many times does 27 go into 324

Leona [35]

324 divided by 27 is 12.

8 0

3 years ago

If you want to buy an item in a store that cost $43 and is on sale for 40% off, then how much would the item actually cost you a

expeople1 [14]

Answer:

$25.80

Step-by-step explanation:

40% = 40/ 100 = 4/10 = 0,4

There is a 40% discount, which means that the amount multiplied by more then 1 (for example 1,4) would increase the amount... That isn't right because it is a discount!

So you need to subtract the 40%, so (1 - 0.4 =) 0.6

The amount multiplied by 0.6 will be the correct amount, being $43 * 0.6 = $25.80 (rounded to the nearest cent).

The amount the item actually cost after the discount is $25.80

4 0

2 years ago

Write an equation in point-slope form for the line through the given point with the given slope.

Lilit [14]

The correct answer is D) y + 1 = 4/3(x - 9)

In order to find this, simply take the point and the slope and plug into the base form of point-slope form.

y - y1 = m(x - x1)

Use the slope for m and the point for (x1, y1)

y + 1 = 4/3(x - 9)

7 0

3 years ago

What is the value of ?<br> –34<br> –2<br> 10<br> 34

Zolol [24]

Answer:

-2

Step-by-step explanation:

Remember to follow PEMDAS. First solve parenthesis, power, multiplication, then add.

(5 - 2) = 3

(-4)² = (-4)(-4) = 16

3(-6) = -18

16 + (-18) = 16 - 18 = -2

-2 is your answer.

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3 years ago

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