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2 years ago

What is 9 x 9 divided by 7. Please show your work :D

Mathematics

2 answers:

Andru [333]2 years ago

6 0

9x9+81

81/7= 81 over 7, or 11.6

madreJ [45]2 years ago

4 0

9x9=81
81 divided by 7=11.5714286

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Solve for q. 8.3q = 41.5 q =

givi [52]

Hello,

Your answer would be 5.

41.5 / 8.3 would equal you 5.

Hope this helps

3 0

2 years ago

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I need help getting how do i do this??

Dovator [93]

Answer:

5 units

Step-by-step explanation:

By distance formula:

$r = \sqrt{(4 - 1) ^{2} + {(7 - 3)}^{2} } \\ \\ r = \sqrt{ {3}^{2} + {4}^{2} } \\ \\ r = \sqrt{9 + 16} \\ \\ r = \sqrt{25} \\ \\ r = 5$

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2 years ago

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Which is the distance between parallel lines with the equations 3x-5y=1 and 3x-5y=-3

jonny [76]

Answer:

The distance between parallel lines is $0.6860\ units$

Step-by-step explanation:

we have

$3x-5y=1$ -----> equation A

$3x-5y=-3$ -----> equation B

Line A and Line B are parallel lines, because their slopes are equal

Step 1

Find the slope of the given lines

isolate the variable y in the equation A

$5y=3x-1$

$y=(3/5)x-1/5$

The slope is $m=(3/5)$

Step 2

Find the slope of the perpendicular line to the given lines

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

$m1*m2=-1$

we have

$m1=3/5$ -----> given lines

substitute

$(3/5)*m2=-1$

$m2=-5/3$

Step 3

Find the equation of the perpendicular line that pass though the origin

with the slope $m2=-5/3$ and the point (0,0) Find the equation of the line

$y-y1=m(x-x1)$

$y-0=(-5/3)(x-0)$

$y=-(5/3)x$

Step 4

Using a graphing tool

Graph the two parallel lines and the perpendicular line

The intersection points are

$A(-0.2647,0.4412)$ and $B(0.0882,-0.1471)$

see the attached figure

we know that

the distance between the points A and B is the distance between parallel lines

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$d=\sqrt{(-0.1471-0.4412)^{2}+(0.0882+0.2647)^{2}}$

$d=\sqrt{(-0.5883)^{2}+(0.3529)^{2}}$

$d=0.6860\ units$

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3 years ago

Morgan bought candy for $.95, an eraser for $.15, and 2 pencils for $.40 each. (a) how much did the pencils cost? (b) how much d

Arisa [49]

Answer:

Step-by-step explanation:

1 pencil costs 0.40 dollars.

1 pencils cost 2 times 0.40 = .80 dollars

Candy 0.95

eraser 0.15

2 pencils 0.80

Total 1.90 Add

She started with 5.00 dollars

She spent 1.90 dollars Subtract

Here change was 3.10 dollars.

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2 years ago

What is the value of a? Round to the nearest tenth.

Sergio [31]

Answer:

50 percent?

Step-by-step explanation:

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3 years ago