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grandymaker [24]

3 years ago

12

deborah's playlist on her mp3 player has a variety of songs she had 21 country 18 alternative 16 pop 18 rock use the bar diagram

to write and evaluate two numerical expressions to represent the total number of songs on deborah's mp3 player

1 answer:

valkas [14]3 years ago

5 0

Add up all the songs

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Manny is covering a book. The front of the book is 11.2 inches high and 7.3 inches wide. What is the area of the front of the bo

irina [24]

Answer:

81.76in^2

Step-by-step explanation:

Given data

Lenght of book= 11.2 inches

WIdth of book= 7.3 inches

We know that Area= Length* Width

Area= 11.2*7.3

Area= 81.76 in^2

Hence the area of the front of the book is is 81.76in^2

7 0

3 years ago

The coordinates of the endpoints of AB and CD are A(2,

Ratling [72]

Answer:

Option 1: CD is a perpendicular bisector of AB

Step-by-step explanation:

Let us find out the slopes of various line segments and the Distances and then we will draw the conclusions accordingly.

Formula to find slope

$m= \frac{y_2-y_1}{x_2-x_1}$

Formula to Find Distance between two points

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

mAB ( represents , Slope of AB )

1. $mAC= \frac{3-2}{2-5}=\frac{1}{-3}=-\frac{1}{3}$

2. $mBC=\frac{2-1}{5-8}=\frac{1}{-3}=-\frac{1}{3}$

3. $mCD=\frac{5-2}{6-5}=\frac{3}{1}=3$

4. $AC=\sqrt{(3-2)^2+(2-5)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

5. $BC=\sqrt{(2-1)^2+(5-8)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

mAC = mBC , and C is common point , hence these three are collinear points making a straight line whole slope is $-\frac{1}{3}$

$mAB=-\frac{1}{3}$

$mCD=3$

$mAB \times mCD = -\frac{1}{3} \times 3 = -1$

Hence CD ⊥ AB

Also

From Point 4 and point 5 above , we see that

AC = CB

Hence CD bisect AB at C, also CD ⊥ AB

There fore

CD is a perpendicular bisector of AB

Therefor option 1 is true

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3 years ago

Help a girl out ?? needs turned in at 8:50 pm pls help

True [87]

I guess it’s A not sure tho

6 0

3 years ago

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A holiday meal cost $12. 50 a person plus a delivery fee of $30 is this linear or nonlinear<br>

allochka39001 [22]

Yes it’s linear
y=12.5x+30

7 0

2 years ago

I need #3 done ASAP (Must show work) Will give brainliest

Alenkinab [10]

Step-by-step explanation:

<u>Statements Reasons </u>

1 . ∠ABC and ∠CBD are a linear pair Given

2. m∠CBD = m∠EFG Given

3 . ∠ABC and ∠CBD are supplementary Definition of linear pair

4. m∠ABC + m∠CBD = 180° Definition of supplementary

5. m∠ABC + m∠EFG = 180° Substitution property

6. ∠ABC and ∠CBD are supplementary Definition of supplementary

4 0

2 years ago