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EleoNora [17]
4 years ago
6

Mrs. Stevens is wanting to buy new border for her math bulletin board in the hallway l. The length of the board is 6.8 meters. T

he width is 2.3 meters. How much border does Mrs. Stevens need to buy?
Mathematics
1 answer:
Maurinko [17]4 years ago
7 0

she needs 18.2 meters

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Can someone please help me!!
Sloan [31]

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

Use Angle Bisector theorem (look at the picture).

We have the equation:

\dfrac{3}{x}=\dfrac{x-4}{4}        <em>cross multiply</em>

x(x-4)=(3)(4)          <em>use the distributive property</em>

x^2-4x=12           <em>subtract 12 from both sides</em>

x^2-4x-12=0\\\\x^2+2x-6x-12=0\\\\x(x+2)-6(x+2)=0\\\\(x+2)(x-6)=0\iff x+2=0\ \vee\ x-6=0

x+2=0        <em>subtract 2 from both sides</em>

x=-2

x-6=0       <em>add 6 to both sides</em>

x=6

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3 years ago
Each circle counts as one whole. Write a mixed number giving the amount shaded. Then, write this amount as an improper fraction.
ryzh [129]

Answer: 1 3/4 is your mixed fraction and 7/4 is the improper fraction.

Step-by-step explanation:

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3 years ago
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Ivanshal [37]

Answer:

810

Step-by-step explanation:

V = l * w * h = 5 * 9 * 18 = 810\ cm^3

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3 years ago
A walking path across a park is represented by the equation y=-3x - 3. A
luda_lava [24]

Answer:

y = (1/3)x + 7

Step-by-step explanation:

The general structure form of a line in slope-intercept form is:

y = mx + b

In this form, "m" represents the slope and "b" represents the y-intercept.

The slope of a perpendicular line is the opposite-signed, reciprocal of the original line's slope. Therefore, if the slope of the original line is m = -3, the new slope is m = 1/3.

The y-intercept can be found by plugging the new slope and the values from the point (-3, 6) into the slope-intercept form equation.

m = 1/3

x = -3

y = 6

y = mx + b                                  <----- Slope-intercept form

6 = (-3)(1/3) + b                           <----- Insert values

6 = -1 + b                                    <----- Multiply -3 and 1/3

7 = b                                           <----- Add 1 to both sides

Now, that you have the slope and y-intercept, you can construct the equation of the perpendicular line.

y = (1/3)x + 7

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