If n=37 cm and l=12 cm what is the length of m

The scale of a map is 1 inch = 30 miles. How many actual miles does 5.25 represent?

MariettaO [177]

It would be) 157.25 miles (:

Hope that helps! (:

5 0

4 years ago

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(-1,7);, (8,-2) write an equation of the line that passes

ruslelena [56]

The formula to find the slope of a line is m = $\frac{y_2 - y_1}{x_2 - x_1}$ where the x's and y's are your given coordinates and m is your slope. So, plug in your coordinates and solve.

m = $\frac{y_2 - y_1}{x_2 - x_1} Plug in your coordinates m = [tex] \frac{-2 - 7}{8 - -1} Cancel out the double negative m = [tex] \frac{-2 - 7}{8 + 1} Simplify m = [tex] \frac{-9}{9} Divide m = -1 Now, plug that slope and one set of your given coordinates into point-slope form, [tex]y - y_1 = m(x - x_1)$ . I'll use (-1, 7).

 $y - y_1 = m(x - x_1)$ Plug in your points and slope
y - 7 = -1(x - -1) Cancel out the double negative
y - 7 = -1(x + 1) Use the Distributive Property
y - 7 = -x - 1 Add 7 to both sides
y = -x + 6

7 0

3 years ago

Pleaseee help me....what will the y-coordinate of b' if ab is dilated by a factor of 2/5, centered at the origin. A=(2,2) B=(10,

sdas [7]

Answer:

The y-coordinate of B' is equal to 2

Step-by-step explanation:

step 1

Find the distance of AB

$AB=10-2=8\ units$

step 2

Find the length of A'B'

Multiply the length of AB by the scale factor

$A'B'=8*\frac{2}{5}= 3.2\ units$

step 3

Find the midpoint AB

$M=(\frac{2+10}{2},\frac{2+2}{2} )$

$M=(6,2)$

step 4

Find the x-coordinate of B'

The x-coordinate of B' is equal to the x-coordinate of midpoint plus the semi distance A'B'

$6+\frac{3.2}{2}=6+1.6=7.6$

Find the y-coordinate of B'

The y-coordinate of B' is equal to 2 (because is a horizontal line)

3 0

4 years ago

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There are 12 people in an office with 3 different phone lines. If all the lines begin to ring at once, how many groups of 3 peop

viva [34]

Answer: the required answer is 1320

Step-by-step explanation:

Total people = 12

Different phone lines = 3

We will choose the person to answer the first phone in 12 ways.

Then choose the second person in 11 ways. (11 people left)

Then choose the third person in 10 ways. ( 10 people left)

The number of groups of 3 people can answer these lines $12 \times11\times10=1320$

Hence, the required answer is 1320

8 0

3 years ago

Which of the following is the fourth step in copying an angle? Draw a ray through the new vertex and the intersection point of t

Temka [501]

1. You are given an angle.
2. Draw a ray with one endpoint. This endpoint will be the vertex of the new angle.
3. Place the compass on the vertex of the given angle and swing an arc that intersects both rays of the given angle.
4. Place the compass on the vertex of the new angle and swing an arc similar to the first one you created.
5. Open the compass to the width of the intersection points of the rays and arc of the given angle.
6. Place the compass on the intersection point of the ray and arc of the new angle and swing another arc that intersects the first.
7. Draw a ray through the new vertex and the intersection point of the two rays.
8. This second ray creates an angle that is congruent to the given one.

4 0

4 years ago

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