I need help fast and really fast

-x/8-11=-2 what is the answer because i have a tough time solving it

gavmur [86]

Answer:

$x=-72$

Step-by-step explanation:

$-\frac{x}{8}-11=-2\\ -\frac{x}{8}=9\\ -x=72\\x=-72$

8 0

3 years ago

The equation of the known circle is x^2+y^2-4x-4y+4=0, and the two tangents passing through the point (4 , 2) and the point (4/5

Nutka1998 [239]

Answer:

Answer:

4x - 3y = 0

Step-by-step explanation:

The angle between the radius and the

tangent at P is right

The equation of a line in slope-intercept

form is

y = mx + c ( m is the slope and c the y-

intercept)

Rearrange 4y + 3x = 25 into this form

=

Subtract 3x from both sides

4y = - 3x + 25 ( divide all terms by 4)

=-

y = -- 3 x + 25 + in slope-intercept form

4

X

with slope m

--

3

4

Given a line with slope m then the slope

of a line perpendicular to it is

1

= -

т

-

m perpendicular

* = 4, thus

4.

3

4

y = 4 x+c+ is the partial equation

To find c substitute P(3, 4) into the partial

equation

4 = 4 +C+c= 4-4 = 0

=

y = { x + equation of radius in slope-

intercept form

Multiply through by 3

3y = 4x ( subtract 3y from both sides )

=

4x - 3y = 0 + equation of radius in

standard form

5 0

2 years ago

Solve 117 divided by 18. Show the answer as a fraction in lowest terms.

lisov135 [29]

Answer: 6 1/2

Step-by-step explanation

6 0

3 years ago

In the figure, angle D measures 31⁰ and angle A measures 27⁰

Zielflug [23.3K]

Answer:

1)B:63°

2)A:59°

Step-by-step explanation:

1.ABC is a right triangle at C then angle ACB=90°(right angle)

Angle CAB=27°(see the given)

measure of the angles in any triangle is 180°

then angle CBA=

measure of all the angles - (measure ACB+measure CAB)

=180°-(90°+27°)

=63°

2. Same explanation of angle B:

in the right triangle DEF: angle DEF=90°

angle D=31°(given)

Then measure of angle A=180°-(angle E + angle D)

=180-(90+31)=59°

3 0

3 years ago

Read 2 more answers

Using the frequency table given, find the mean, median, and mode.

aalyn [17]

Answer:

$Mean = 69$

$Mode = 66$

$Median = 69$

Step-by-step explanation:

Given

The frequency table

Required

Determine the mean, median and mode

Calculating Mean

$Mean = \frac{\sum fx}{\sum f}$

Where

fx = product of frequency and inches

f = frequency

So;

$Mean = \frac{63 * 2 + 65 * 1 + 66 * 4 + 67 * 3 + 68 * 1 + 69 * 2 + 70 * 2 + 71 * 1 + 72 * 3 + 74 * 2 + 75 * 2}{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}$

$Mean = \frac{1587}{23}$

$Mean = 69$

Calculating Mode

$Mode = 66$

Because it highest frequency of 4

Calculating Median

$Median = \frac{\sum f}{2}th\ position$

$Median = \frac{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}{2}th\ position$

$Median = \frac{23}{2}th\ position$

$Median = 11.5th\ position$

Approximate

$Median = 12th\ position$

At this point we, need to get the cumulative frequency (CF)

Inches ---- Frequency ---- CF

63 -------------2------------------2

65 -------------1------------------3

66 -------------4------------------7

67 -------------3------------------10

68 -------------1------------------11

69 -------------2------------------13

70 -------------2------------------15

71 -------------1------------------16

72 -------------3------------------19

74 -------------2------------------21

75 -------------2------------------23

From the above table

Since the median fall in the 12th position, then we consider the following data

69 -------------2------------------13

because it has a CF greater than 12

Hence;

$Median = 69$

7 0

4 years ago