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2 years ago

Can you please help me find number for D

Mathematics

1 answer:

Nat2105 [25]2 years ago

6 0

Step-by-step explanation:

the slope of the line between the first 2 points must be the same as the slope between the second and the third point.

the slope is y difference / x difference.

so,

b/a = d/c

-3/1.6 = d/1.5

d = -3×1.5 / 1.6 = -4.5 / 1.6 = -2.8125

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Micah buys 10 pens for every 2 pencils. Rachel buys 12 pens for every 3

Brrunno [24]

Answer:

Step-by-step explanation:

micah

10: 2

5:1

rachel

12: 3

4:1

7 0

3 years ago

Find the perimeter of quadrilateral ABCD with vertices A(-2,-2), B(-1,3),

drek231 [11]

Answer:

Step-by-step explanation:

Step one

given the coordinates

ABCD with vertices A(-2,-2), B(-1,3), C(5, 3), and D(4, -2)

AB=(-2,-2),(-1,3)

BC=(-1,3), (5, 3)

CD=(5, 3),(4, -2)

DA=(4, -2),(-2,-2)

The distance between points AB=

$AB= \sqrt (x_2-x_1)^2+(y_2-y_1)^2$

$AB= \sqrt (-1+2)^2+(3+2)^2\\\\AB= \sqrt 1^2+(5)^2\\\\AB= \sqrt26\\\\AB=5.1$

The distance between points BC=

$BC= \sqrt (5+1)^2+(3-3)^2\\\\BC= \sqrt 6^2+(0)^2\\\\BC= \sqrt36\\\\BC=6$

The distance between points CD

$CD= \sqrt (4-5)^2+(-2-3)^2\\\\CD= \sqrt -1^2+(-5)^2\\\\CD= \sqrt26\\\\CD=5.1$

The distance between points DA

$DA= \sqrt (4+2)^2+(-2+2)^2\\\\DA= \sqrt 6^2+(0)^2\\\\DA= \sqrt36\\\\DA=6$

Hence the perimeter = 5.1+6+5.1+6

= 22.2

5 0

2 years ago

The conference will begin at 8:30 a.m. and will last 5 hours 45 minutes. What time will the conference be over?

Delicious77 [7]

Add the time to the start time:

8:30

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2 hours: 10:30am

3 hours: 11:30am

4 hours: 12:30pm

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Answer: 2:15 pm

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3 years ago

The following table represents Tracie's earnings:

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3 0

3 years ago

Read 2 more answers

Please answer this correctly

musickatia [10]

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6 0

3 years ago